0000076063-22-000010 | 10-K | XBRL Viewer | Panhandle Eastern Pipe Line Company LP

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CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Operating Lease, Liability, Noncurrent	$ 3	$ 5
Operating Lease, Right-of-Use Asset	4	5
Current assets:
Cash and cash equivalents	0	0
Accounts receivable, net	50	47
Accounts receivable from related companies	8	8
Exchanges receivable	7	6
Inventories	57	86
Other current assets	5	6
Total current assets	127	153
Property, plant and equipment
Total property, plant and equipment	3,421	3,349
Accumulated depreciation	(813)	(717)
Property, plant and equipment, net	2,608	2,632
Other Assets, Noncurrent	192	172
Total assets	2,931	2,962
Current liabilities:
Accounts payable to related companies	25	14
Exchanges payable	22	71
Other current liabilities	62	33
Total current liabilities	148	122
Long-term debt, less current maturities	243	245
Note payable to related company	221	550
Other non-current liabilities	312	246
Commitments and contingencies
Partners’ capital:
Partners’ capital	2,001	1,803
Accumulated other comprehensive income (loss)	3	(9)
Total partners’ capital	2,004	1,794
Total liabilities and partners’ capital	2,931	2,962
Accounts payable	$ 39	$ 4

CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
OPERATING REVENUES:
Total operating revenues	$ 571	$ 547	$ 578
OPERATING EXPENSES:
Operating, maintenance and general	206	177	193
General and Administrative Expense	36	37	30
Depreciation and amortization	104	116	112
Asset Impairment Charges	0	0	12
Total operating expenses	346	330	347
Operating Income (Loss)	225	217	231
OTHER EXPENSE:
Interest expense, net	(14)	(14)	(17)
Income from unconsolidated affiliates	(17)	(32)	(25)
Other, net	1	(3)	(2)
Total other expenses, net	(30)	(49)	(44)
Income (Loss) from Continuing Operations Before Income Tax Expense	195	168	187
Income tax benefit	(1)	(3)	(402)
Net Income (Loss)	196	171	589
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax	14	21	23
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	210	192	612
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax	3	6	4
Product and Service, Other [Member]
Income Statement
Revenue from Contract with Customer, Including Assessed Tax	18	19	22
Operational Gas Sales
Income Statement
Revenue from Contract with Customer, Including Assessed Tax	67	0	0
Transportation and storage of natural gas
Income Statement
Revenue from Contract with Customer, Including Assessed Tax	$ 486	$ 528	$ 556

CONSOLIDATED STATEMENT OF PARTNERS' CAPITAL - USD ($) $ in Millions	Total	Accumulated Other Comprehensive Income (Loss)	Limited Partner [Member]
Balance at Dec. 31, 2018	$ 1,362	$ (47)	$ 1,409
Other comprehensive income, net of tax	23		0
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax	23
Net income (loss)	589	0	589
Distribution to partners	(375)	0	(375)
Panhandle Merger	(3)	0	(3)
Balance at Dec. 31, 2019	1,602	(24)	1,626
Other comprehensive income, net of tax	21		0
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax	21
Non-Cash Equity Contribution	4	0	4
Net income (loss)	171	0	171
Panhandle Merger	4	6	(2)
Balance at Dec. 31, 2020	1,794	(9)	1,803
Other comprehensive income, net of tax	14		0
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax	14
Net income (loss)	196	0	196
Panhandle Merger	0	2	(2)
Balance at Dec. 31, 2021	$ 2,004	$ 3	$ 2,001

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
OPERATING ACTIVITIES:
Net income (loss)	$ 196	$ 171	$ 589
Reconciliation of net income to net cash provided by operating activities:
Depreciation and amortization	104	116	112
Goodwill Impairment	0	0	12
Deferred income taxes	(2)	(3)	(13)
Amortization of deferred financing fees	(2)	(2)	(4)
Income tax benefit	(1)	(3)	(402)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment	0	0	(428)
Other non-cash	31	9	13
Changes in operating assets and liabilities	76	(25)	(51)
Net cash flows provided by operating activities	403	266	230
INVESTING ACTIVITIES:
Capital expenditures	(74)	(84)	(101)
Net cash flows used in investing activities	(74)	(84)	(101)
FINANCING ACTIVITIES:
Distribution Made to Limited Partner, Cash Distributions Paid	0	0	(375)
Repayments of Related Party Debt	329	182
Proceeds from Related Party Debt			376
Repayments of Long-term Debt	0	0	(150)
Net cash flows used in financing activities	(329)	(182)	(149)
NET CHANGE IN CASH AND CASH EQUIVALENTS	0	0	(20)
CASH AND CASH EQUIVALENTS, beginning of period	0	0	20
CASH AND CASH EQUIVALENTS, end of period	$ 0	$ 0	$ 0

Description of the Business	12 Months Ended
Description of the Business	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of the Business	OPERATIONS AND ORGANIZATION: The Company primarily operates interstate pipelines that transport natural gas from the Gulf of Mexico, South Texas and the Panhandle region of Texas and Oklahoma to major United States markets in the Midwest and Great Lakes regions, as well as natural gas storage assets. These operations are subject to the rules and regulations of the FERC. PEPL’s subsidiaries are Trunkline, Sea Robin and Southwest Gas. Southern Union Panhandle LLC, an indirect wholly-owned subsidiary of Energy Transfer, owns a 1% general partner interest in PEPL and Energy Transfer indirectly owns a 99% limited partner interest in PEPL. Prior to April 1, 2021, ETO owned Southern Union Panhandle LLC as well as the 99% limited partner interest in PEPL. On April 1, 2021, ETO merged with and into Energy Transfer with Energy Transfer surviving the merger. On July 1, 2019, ETO executed a series of internal restructuring transactions that resulted in PEPL becoming a subsidiary of a non-corporate subsidiary of ETO (“PEPL Restructuring”). As a result, PEPL’s tax status changed from a disregarded entity for federal income tax purposes wholly owned by a corporate entity to a disregarded entity for federal income tax purposes wholly owned by a limited partnership. In connection with this restructuring, PEPL’s tax sharing agreement with its former corporate parent was terminated, and PEPL reversed all of its existing deferred tax assets and liabilities in July 2019, which resulted in the recognition of a $428 million non-cash benefit in the consolidated statement of operations. Certain prior period amounts have been reclassified to conform to the 2021 presentation. These reclassifications had no impact on net income, total partners’ capital, or cash flows.

Estimates, Significant Accounting Policies and Balance Sheet Detail (Notes)

12 Months Ended

Dec. 31, 2021

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

ESTIMATES, SIGNIFICANT ACCOUNTING POLICIES AND BALANCE SHEET DETAIL:

Basis of Presentation. The Company’s consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”). The consolidated financial statements include the accounts of all majority-owned subsidiaries, after eliminating significant intercompany transactions and balances. Investments in which the Company has significant influence over the operations of the investee are accounted for using the equity method.

The Company is subject to regulation by certain state and federal authorities. The Company has accounting policies which are in accordance with the accounting requirements and ratemaking practices of the regulatory authorities. The Company does not apply Accounting Standards Codification (“ASC”) Topic 980 in its GAAP-basis consolidated financial statements, primarily due to the level of discounting from tariff rates and its inability to recover specific costs. If ASC Topic 980 were applied, certain transactions would be reported differently in the Company’s GAAP-basis consolidated financial statements, including, among others, recording of regulatory assets, the capitalization of an equity component of invested funds on regulated capital projects and depreciation differences. The Company periodically reviews its level of discounting and negotiated rate contracts, the length of rate moratoriums and other related factors to determine if ASC Topic 980 should be applied.

Use of Estimates. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Cash and Cash Equivalents. Cash equivalents consist of highly liquid investments, which are readily convertible into cash and have original maturities of three months or less. The Company places cash deposits and temporary cash investments with high credit quality financial institutions. At times, cash and cash equivalents may be uninsured or in deposit accounts that exceed the Federal Deposit Insurance Corporation insurance limit.

Non-cash investing and financing activities and supplemental cash flow information are as follows:


	Years Ended December 31,
	2021		2020		2019
Non-cash investing and financing activities:





Settlement of affiliate liability - related company payables	$	—	$	(4)	$	—


Supplemental cash flow information:
Accrued capital expenditures	$	8	$	4	$	11
Cash paid for interest, net of interest capitalized	15		16		23

Cash paid for interest on note payable to related company	18		33		23

Inventories. System natural gas and operating supplies consist of natural gas held for operations and materials and supplies, both of which are carried at the lower of weighted average cost or net realizable value, while natural gas owed back to customers is valued at market. The natural gas held for operations that the Company does not expect to consume in its operations in the next twelve months is reflected in non-current assets.

The following table presents the components of inventory:


	December 31,
	2021		2020

Natural gas (1)	$	36	$	63
Materials and supplies	21		23
	$	57	$	86

(1)Natural gas volumes held for operations at December 31, 2021 and 2020 were 11.4 TBtu and 29.2 TBtu, respectively.

Natural Gas Imbalances. Natural gas imbalances occur as a result of differences in volumes of natural gas received and delivered. The Company records natural gas imbalance in-kind receivables and payables at cost or market. Net imbalances that have reduced system natural gas are valued at the cost basis of the system natural gas, while net imbalances that have increased system natural gas and are owed back to customers are priced, along with the corresponding system natural gas, at market.

Fuel Tracker. The fuel tracker is the cumulative balance of compressor fuel volumes owed to the Company by its customers or owed by the Company to its customers. The customers, pursuant to each pipeline’s tariff and related contracts, provide all compressor fuel to the pipeline based on specified percentages of the customer’s natural gas volumes delivered into the pipeline. The percentages are designed to match the actual natural gas consumed in moving the natural gas through the pipeline facilities, with any difference between the volumes provided versus volumes consumed reflected in the fuel tracker. The tariff of Trunkline, in conjunction with the customers’ contractual obligations, allows the Company to record an asset and direct bill customers for any fuel ultimately under-recovered. The other FERC-regulated PEPL entities record an expense when fuel is under-recovered or record a credit to expense to the extent any under-recovered prior period balances are subsequently recouped as they do not have such explicit billing rights specified in their tariffs. Liability accounts are maintained for net volumes of compressor fuel natural gas owed to customers collectively. The pipelines’ fuel reimbursement is in-kind and non-discountable. As of December 31, 2021 and 2020, the Company had a fuel tracker balance of $15 million and $2 million, respectively, included in other current liabilities.

Property, Plant and Equipment.

The following table presents the components of property, plant and equipment:


		December 31,
	Lives in Years	2021		2020
Land and improvements		$	4	$	4
Buildings and improvements	6 – 46	195		197
Pipelines and equipment	5 – 46	2,684		2,631
Natural gas storage facilities	26 – 46	368		360





Other	3 – 21	145		142
Construction work in progress		25		15
Property, plant and equipment		3,421		3,349
Accumulated depreciation and amortization		(813)		(717)
Property, plant and equipment, net		$	2,608	$	2,632

Additions. Ongoing additions of property, plant and equipment are stated at cost. The Company capitalizes all construction-related direct labor and material costs, as well as indirect construction costs. Such indirect construction costs primarily include capitalized interest costs and labor and related costs of departments associated with supporting construction activities. The indirect capitalized labor and related costs are largely based upon results of periodic time studies or management reviews of time allocations, which provide an estimate of time spent supporting construction projects. The cost of replacements and betterments that extend the useful life of property, plant and equipment is also capitalized. The cost of repairs and replacements of minor property, plant and equipment items is charged to expense as incurred.

Retirements. When ordinary retirements of property, plant and equipment occur, the original cost less salvage value is removed by a charge to accumulated depreciation and amortization, with no gain or loss recorded. When entire regulated operating units of property, plant and equipment are retired or sold, the original cost less salvage value and related accumulated depreciation and amortization accounts are removed, with any resulting gain or loss recorded in earnings.

Depreciation. The Company computes depreciation expense using the straight-line method.

Interest Cost Capitalized. The Company capitalizes interest on certain qualifying assets that are undergoing activities to prepare them for their intended use. Interest costs incurred during the construction period are capitalized and amortized over the life of the assets. For the years ended December 31, 2021 and 2020, the Company recognized no capitalized interest. For the year ended December 31, 2019 the Company recognized capitalized interest of $2 million.

Related Party Transactions. Related party expenses primarily include payments for services provided by Energy Transfer and other affiliates, as well as interest expense on a note payable to Energy Transfer.

Environmental Expenditures. Environmental expenditures that relate to an existing condition caused by past operations that do not contribute to current or future revenue generation are expensed. Environmental expenditures relating to current or future revenues are expensed or capitalized as appropriate. Liabilities are recorded when environmental assessments and/or clean-ups are probable and the costs can be reasonably estimated. Remediation obligations are not discounted because the timing of future cash flow streams is not predictable.

Other Current Liabilities. Other current liabilities consisted of the following:


	December 31,
	2021		2020
Deposits from customers	$	14	$	8
Accrued expenses	34		13
Accrued capital expenditures	8		4


Other	6		8
Total other current liabilities	$	62	$	33

Other Non-Current Liabilities. Other non-current liabilities consisted of the following:


	December 31,
	2021		2020
Pension liability	$	110	$	97
ARO	56		37
Provision for rate refunds (1)	57		24
Other	89		88
Total other non-current liabilities	$	312	$	246

(1) Provision for rate refunds represents future amounts to be settled with the Company’s shippers under FERC regulation.

Revenues. The Company’s revenues from transportation and storage of natural gas are based on capacity reservation charges and, to a lesser extent, commodity usage charges. Reservation revenues are based on contracted rates and capacity reserved by the customers and are recognized monthly. Revenues from commodity usage charges are also recognized monthly, based on the volumes received from or delivered for the customer, based on the tariff, with any differences in volumes received and delivered resulting in an imbalance. Volume imbalances generally are settled in-kind with no impact on revenues, with the exception of Trunkline, which settles certain imbalances in cash pursuant to its tariff, and records gains and losses on such cashout sales as a component of revenue, to the extent not owed back to customers. Because the Company is subject to FERC regulation, revenues collected during the pendency of a rate proceeding may be required by FERC to be refunded in the final order. The Company establishes reserves for such potential refunds, as appropriate.

Accounts Receivable and Allowance for Expected Credit Losses. The Company has a large number of customers in the electric and gas utility industries as well as oil and natural gas producers and municipalities. The large number of customers in these energy segments may impact our overall exposure to credit risk, either positively or negatively, in that the customers may be similarly affected by changes in economic or other conditions. The Company manages trade credit risk to mitigate credit losses and exposure to uncollectible trade receivables. Prospective and existing customers are reviewed regularly for creditworthiness based upon pre-established standards consistent with FERC filed tariffs to manage credit risk within approved tolerances. Customers that do not meet minimum credit standards are required to provide additional credit support in the form of a letter of credit, prepayment, or other forms of security.

The Company establishes an allowance for expected credit losses on trade receivables based on the expected ultimate recovery of these receivables and considers many factors including historical customer collection experience, general and specific economic trends, and known specific issues related to individual customers, sectors, and transactions that might impact collectability. Increases in the allowance are recorded as a component of operating expenses; reductions in the allowance are recorded when receivables are subsequently collected or written-off. Past-due receivable balances are written-off when the Company’s efforts have been unsuccessful in collecting the amount due.

The allowance for expected credit losses was not material as of December 31, 2021 and 2020.

The following table presents the relative contribution to the Company’s total operating revenue from operations of each customer that comprised at least 10% of its operating revenues:


	Years Ended December 31,
	2021		2020		2019
Customer A	12	%	12	%	10	%
Customer B	17		17		16
Other top 10 customers	29		31		31
Remaining customers	42		40		43
Total percentage	100	%	100	%	100	%

Accumulated Other Comprehensive Income (Loss). The main components of accumulated other comprehensive income (loss) are net actuarial gain and prior service costs on pension and other postretirement benefit plans.

projected benefit obligation for pension plans and the accumulated postretirement benefit obligation for other postretirement plans). Each overfunded plan is recognized as an asset and each underfunded plan is recognized as a liability. Changes in the funded status of the plan are recorded in other comprehensive income in partners’ capital in the year in which the change occurs.

Fair Value Measurement. Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The Company utilizes market data or assumptions that market participants would use in pricing the asset or liability, including assumptions about nonperformance risk, which is primarily comprised of credit risk (both the Company’s own credit risk and counterparty credit risk) and the risks inherent in the inputs to any applicable valuation techniques. The Company places more weight on current market information concerning credit risk (e.g. current credit default swap rates) as opposed to historical information (e.g. historical default probabilities and credit ratings). These inputs can be readily observable, market corroborated, or generally unobservable. The Company endeavors to utilize the best available information, including valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs. A three-tier fair value hierarchy, which prioritizes the inputs used to measure fair value, is as follows:

•Level 1 – Observable inputs such as quoted prices in active markets for identical assets or liabilities;

•Level 2 – Observable inputs such as: (i) quoted prices for similar assets or liabilities in active markets; (ii) quoted prices for identical or similar assets or liabilities in markets that are not active and do not require significant adjustment based on unobservable inputs; or (iii) valuations based on pricing models, discounted cash flow methodologies or similar techniques where significant inputs (e.g., interest rates, yield curves, etc.) are derived principally from observable market data, or can be corroborated by observable market data, for substantially the full term of the assets or liabilities; and

•Level 3 – Unobservable inputs, including valuations based on pricing models, discounted cash flow methodologies or similar techniques where at least one significant model assumption or input is unobservable. Unobservable inputs are used to the extent that observable inputs are not available and reflect the Company’s own assumptions about the assumptions market participants would use in pricing the assets or liabilities. Unobservable inputs are based on the best information available in the circumstances, which might include the Company’s own data.

Assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the valuation of these assets and liabilities and their placement within the fair value hierarchy.

The Company had $39 million and $34 million available for sale securities, included in other non-current assets, at December 31, 2021 and 2020, respectively. At December 31, 2021, $26 million in equity securities were valued at Level 1 and $13 million in fixed income securities were valued at Level 2. At December 31, 2020, $22 million in equity securities were valued at Level 1 and $12 million in fixed income securities were valued at Level 2. The carrying amount of cash and cash equivalents, accounts receivable and accounts payable approximates fair value.

Asset Retirement Obligations. Legal obligations associated with the retirement of long-lived assets are recorded at fair value at the time the obligations are incurred, if a reasonable estimate of fair value can be made. Present value techniques are used which reflect assumptions such as removal and remediation costs, inflation, and profit margins that third parties would demand to settle the amount of the future obligation. The Company did not include a market risk premium for unforeseeable circumstances in its fair value estimates because such a premium could not be reliably estimated. Upon initial recognition of the liability, costs are capitalized as a part of the long-lived asset and allocated to expense over the useful life of the related asset. The liability is accreted to its present value each period with accretion being recorded to operating expense with a corresponding increase in the carrying amount of the liability. To the extent the Company is permitted to collect and has reflected in its financials amounts previously collected from customers and expensed, such amounts serve to reduce what would be reflected as capitalized costs at the initial establishment of an ARO.

The determination of the provision for income taxes requires significant judgment, use of estimates, and the interpretation and application of complex tax laws. Significant judgment is required in assessing the timing and amounts of deductible and taxable items and the probability of sustaining uncertain tax positions. The benefits of uncertain tax positions are recorded in our financial statements only after determining a more-likely-than-not probability that the uncertain tax positions will withstand challenge, if any, from taxing authorities. When facts and circumstances change, we reassess these probabilities and record any changes through the provision for income taxes.Commitments and Contingencies. The Company is subject to proceedings, lawsuits and other claims related to environmental and other matters. Accounting for contingencies requires significant judgment by management regarding the estimated probabilities and ranges of exposure to potential liability.

Related Party Transactions

12 Months Ended

Dec. 31, 2021

Related Party Transactions

RELATED PARTY TRANSACTIONS:

Accounts receivable from related companies reflected on the consolidated balance sheets primarily related to services provided to Energy Transfer and other affiliates. Accounts payable to related companies reflected on the consolidated balance sheets related to various services provided by Energy Transfer and other affiliates.

The following table provides a summary of related party activity included in our consolidated statements of operations:


	Years Ended December 31,
	2021		2020		2019
Operating revenues	$	90	$	90	$	95

Operating and maintenance	19		15		27
General and administrative	25		23		18


Interest expense — related company	17		32		25

The Company settled affiliate payables with a subsidiary of Energy Transfer through non-cash contributions during the year ended December 31, 2020 for $4 million.

As of December 31, 2021 and 2020, the Company had $221 million and $550 million, respectively, outstanding under a note payable to Energy Transfer. The note payable accrues interest monthly with an annual interest rate of 4.898% as of December 31, 2021 and matures on July 31, 2027.

Debt Obligations

12 Months Ended

Dec. 31, 2021

Debt Disclosure [Abstract]

Debt Obligations

DEBT OBLIGATIONS:

The following table sets forth the debt obligations of the Company:


	December 31,
	2021		2020



7.60% Senior Notes due February 1, 2024	$	82	$	82
7.00% Senior Notes due July 15, 2029	66		66
8.25% Senior Notes due November 15, 2029	33		33
Floating Rate Junior Subordinated Notes due November 1, 2066	54		54

Unamortized fair value adjustments	8		10
Total long-term debt outstanding	$	243	$	245

Based on the estimated borrowing rates currently available to the Company and its subsidiaries for loans with similar terms and average maturities, the aggregate fair value of the Company’s consolidated debt obligations at December 31, 2021 and 2020 was $253 million and $256 million, respectively. The fair value of the Company’s consolidated debt obligations is a Level 2 valuation based on the observable inputs used for similar liabilities.

As of December 31, 2021, the Company has scheduled long-term debt principal payments as follows:


Years Ending December 31,
2022	$	—
2023	—
2024	82
2025	—
2026	—
Thereafter	153
Total	$	235

Floating Rate Junior Subordinated Notes

The interest rate on PEPL’s junior subordinated notes due 2066 is a variable rate based upon the three-month London Interbank Offered Rate plus 3.0175%. The balance of the floating rate junior subordinated notes was $54 million at December 31, 2021 and 2020 at an effective interest rate of 3.149% and 3.232%, respectively.

Compliance With Our Covenants

The Company’s notes are subject to certain requirements, such as the maintenance of a fixed charge coverage ratio and a leverage ratio, which if not maintained, restrict the ability of the Company to make certain payments and impose limitations on the ability of the Company to subject its property to liens. Other covenants impose limitations on restricted payments, including dividends and loans to related companies, and additional indebtedness. As of December 31, 2021, the Company is in compliance with these covenants.

The Company will continue to opportunistically evaluate alternatives for funding its debt repayment obligations. Alternatives include, but are not limited to, refinancing of amounts due with new senior notes, a term loan facility or a loan provided by Energy Transfer or other affiliates.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

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+ Details

Retirement Benefits (Notes)

12 Months Ended

Dec. 31, 2021

Postemployment Benefits [Abstract]

Benefits

RETIREMENT BENEFITS:

Postretirement Benefit Plans

Affiliates of the Company previously offered postretirement health care and life insurance benefit plans (other postretirement plans) that covered substantially all employees. Participation in the plan was previously frozen and medical benefits were no longer offered, except for coverage that has been extended to a closed group of former employees based on certain criteria.

Obligations and Funded Status

Other postretirement benefit liabilities are accrued on an actuarial basis during the years an employee provides services. The following tables contain information at the dates indicated about the obligations and funded status of the Company’s other postretirement plans.


	December 31,
	2021		2020
Change in benefit obligation:
Benefit obligation at beginning of period	$	98	$	91
Service cost	1		1
Interest cost	2		3

Actuarial loss	1		7
Benefits paid, net	(4)		(4)


Benefit obligation at end of period	$	98	$	98
Change in plan assets:
Fair value of plan assets at beginning of period	$	191	$	169
Return on plan assets and other	23		18
Employer contributions	8		8
Benefits paid, net	(4)		(4)

Fair value of plan assets at end of period	$	218	$	191

Amount overfunded at end of period (1)	$	120	$	93

Amounts recognized in accumulated other comprehensive income (pre-tax basis) consist of:
Net actuarial gain	$	(21)	$	(8)
Prior service cost	18		19
	$	(3)	$	11

(1)Recorded as a non-current asset in the consolidated balance sheets with a non-current pension liability for overfunded amounts owed to the Company’s shippers.

Components of Net Periodic Benefit Cost

The following tables set forth the components of net periodic benefit cost of the Company’s postretirement benefit plan for the periods presented:


	Years Ended December 31,
	2021		2020		2019
Service cost	$	1	$	1	$	1
Interest cost	2		3		3
Expected return on plan assets	(10)		(9)		(7)
Prior service credit amortization	1		18		24


Net periodic benefit cost	$	(6)	$	13	$	21

Services cost is recorded within general and administrative expense while non-service cost components are recorded within other, net in our consolidated statements of operations.

The estimated prior service cost for other postretirement plans that will be amortized from accumulated other comprehensive income into net periodic benefit cost during 2022 is $1 million.

Assumptions. The weighted-average discount rate used in determining benefit obligations was 2.50% and 2.16% at December 31, 2021 and 2020, respectively.

The weighted-average assumptions used in determining net periodic benefit cost for the periods presented are shown in the table below:


	Years Ended December 31,
	2021		2020		2019
Discount rate	2.18	%	3.00	%	4.05	%
Expected return on assets:
Tax exempt accounts	7.00	%	7.00	%	7.00	%
Taxable accounts	4.75	%	4.75	%	4.75	%

The Company employs a building block approach in determining the expected long-term rate of return on the plans’ assets with proper consideration for diversification and rebalancing. Historical markets are studied and long-term historical relationships between equities and fixed-income are preserved consistent with the widely accepted capital market principle that assets with higher volatility generate a greater return over the long run. Current market factors such as inflation and interest rates are evaluated before long-term market assumptions are determined. Peer data and historical returns are reviewed to check for reasonableness and appropriateness.

The assumed health care cost trend weighted-average rates used to measure the expected cost of benefits covered by the plans are shown in the table below:


	December 31,
	2021		2020
Health care cost trend rate	8.10	%	8.05	%
Rate to which the cost trend is assumed to decline (the ultimate trend rate)	4.90	%	4.65	%
Year that the rate reaches the ultimate trend rate	2029		2028

Assumed health care cost trend rates have a significant effect on the amounts reported for health care plans. A one-percentage-point change in assumed health care cost trend rates would have no material effect on accumulated postretirement benefit obligation or on total of annual service and interest cost components.

Plan Assets. The Company’s overall investment strategy is to maintain an appropriate balance of actively managed investments while maintaining a high standard of portfolio quality and achieving proper diversification. To achieve diversity within its other postretirement plan asset portfolio, the Company has targeted the following asset allocations: equity of 25% to 30% and fixed income of 65% to 70%. These target allocations are monitored by the Investment Committee of Energy Transfer’s Board of Directors in conjunction with an external investment advisor. On occasion, the asset allocations may fluctuate as compared to these guidelines as a result of Investment Committee actions.

The fair value of the Company’s other postretirement plan assets at the dates indicated by asset category is as follows:


	December 31,
	2021		2020
Cash and cash equivalents	$	14	$	11
Total Market Index Fund (1)	111		87
Total International Index Fund(2)	19		18
U.S. Bond Index Fund (3)	74		75
Total	$	218	$	191

(1)The fund invests primarily in common stocks included in the Dow Jones U.S. Total Stock Market Index. As of December 31, 2021, this fund was invested 100% in domestic equities.

(2)The fund invests primarily in both the securities and in depository receipts representing securities included in the MSCI All Country World Index. As of December 31, 2021, this fund was invested 97% in foreign equities and 3% in domestic equities.

(3)The fund invests primarily in bonds included in the Bloomberg Barclays U.S. Aggregate Bond Index. As of December 31, 2021, this fund was invested 40% in U.S. Treasury, 27% in mortgage-backed securities, 25% in corporations and 8% in other.

The Total Market Index Fund and Total International Index Fund assets are classified as Level 1 assets within the fair value hierarchy. The U.S. Bond Index Fund is classified as Level 2 assets within the fair value hierarchy.

Contributions. The Company expects to make contributions of $8 million to its other postretirement plans in 2022 and annually thereafter until modified by rate case proceedings.

Benefit Payments. The Company’s estimate of expected benefit payments, which reflect expected future service, as appropriate, in each of the next five years and in the aggregate for the five years thereafter are shown in the table below.


Years	Expected Benefit Payments
2022	$	6
2023	6
2024	6
2025	6
2026	6
2027-2031	26

The Medicare Prescription Drug Act provides for a prescription drug benefit under Medicare (“Medicare Part D”) as well as a federal subsidy to sponsors of retiree health plans that provide a prescription drug benefit that is at least actuarially equivalent to Medicare Part D. The Company does not expect to receive any Medicare Part D subsidies in any future periods.

Defined Contribution Plan

The Company participates in Energy Transfer’s defined contribution savings plan (“Savings Plan”) that is available to virtually all employees. The Company provided matching contributions of 100% of the first 5% of the participant’s compensation paid into the Savings Plan. The Company contributed $2 million, $1 million and $2 million to the Savings Plan during the years ended December 31, 2021, 2020, and 2019, respectively.

In addition, the Company provides a 3% discretionary profit sharing contribution to eligible employees with annual base compensation below a specific threshold. Company contributions are 100% vested after five years of continuous service. The Company made discretionary profit sharing contributions of $1 million, $0.5 million and $1 million for the years ended December 31, 2021, 2020, and 2019, respectively.

As a result of the economic conditions in 2020, effective June 8, 2020, the Company ceased employer matching and profit sharing contributions through December 31, 2020. The Company resumed all such contributions in 2021.

- Definition

The entire disclosure for retirement benefits.

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+ Details

Income Taxes

12 Months Ended

Dec. 31, 2021

Income Tax Disclosure [Abstract]

Taxes on Income

INCOME TAXES:

The following table provides a summary of the current and deferred components of income tax benefit for the year ended December 31, 2019. The years ended December 31, 2021 and 2020 are excluded from the table below, because income tax expense is no longer significant to the Company subsequent to the PEPL Restructuring in 2019.


	Year Ended December 31,
	2019
Current expense:
Federal	$	31
State	8
Total	39
Deferred benefit:
Federal	$	(349)
State	(92)
Total	(441)
Total income tax benefit	$	(402)

The differences between the Company’s effective income tax rate and the United States federal income tax statutory rate are primarily due to state income taxes and, subsequent to the PEPL Restructuring in 2019, due to partnership earnings not subject to tax. In addition, for the year ended December 31, 2019 income tax expense was also impacted by a benefit of $428 million due to the change in tax status associated with the PEPL Restructuring.

The Company is no longer subject to examination by the Internal Revenue Service and most state jurisdictions for 2013 and prior years. However, the Company is currently under state income tax examination for its 2013 and 2014 years.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

ASSET RETIREMENT OBLIGATIONS

12 Months Ended

Dec. 31, 2021

Asset Retirement Obligation Disclosure [Abstract]

Asset Retirement Obligations

ASSET RETIREMENT OBLIGATIONS:

The Company’s recorded asset retirement obligations are primarily related to owned natural gas storage wells and offshore lines and platforms. At the end of the useful life of these underlying assets, the Company is legally or contractually required to abandon in place or remove the asset. Although a number of other onshore assets in the Company’s system are subject to agreements or regulations that give rise to an ARO upon the Company’s discontinued use of these assets, AROs were not recorded because these assets have an indeterminate removal or abandonment date given the expected continued use of the assets with proper maintenance or replacement.

Individual component assets have been and will continue to be replaced, but the pipeline system will continue in operation as long as supply and demand for natural gas exists. Based on the widespread use of natural gas in industrial and power generation activities, management expects supply and demand to exist for the foreseeable future. The Company has in place a rigorous repair and maintenance program that keeps the pipeline system in good working order. Therefore, although some of the individual assets may be replaced, the pipeline system itself will remain intact indefinitely.

The Company recorded AROs related to (i) retiring natural gas storage wells, (ii) retiring offshore platforms and lines and (iii) removing asbestos. In addition, the Company had $39 million and $34 million legally restricted for the purpose of settling AROs that was reflected as other non-current assets as of December 31, 2021 and 2020, respectively; these restricted funds did not include any material amounts of restricted cash.

The following table is a reconciliation of the carrying amount of the ARO liability for the periods presented. Changes in assumptions regarding the timing, amount, and probabilities associated with the expected cash flows, as well as the difference in actual versus estimated costs, may result in a change in the amount of the liability recognized.


	Years Ended December 31,
	2021		2020		2019
Beginning balance	$	37	$	35	$	26

Revisions	17		—		9
Settled	—		—		(2)

Accretion expense	2		2		2
Ending balance	$	56	$	37	$	35

Regulatory Matters	12 Months Ended
Regulatory Matters	Dec. 31, 2021
Commitments and Contingencies [Abstract]
Commitments and Contingencies Disclosure	REGULATORY MATTERS, COMMITMENTS, CONTINGENCIES AND ENVIRONMENTAL LIABILITIES: Contingent Residual Support Agreement with Energy Transfer Under a contingent residual support agreement with Energy Transfer (as successor by merger to ETO) and Citrus ETP Finance LLC, the Company provides contingent, residual support to Citrus ETP Finance LLC (on a non-recourse basis to the Company) with respect to Citrus ETP Finance LLC’s obligations to Energy Transfer to support the payment of certain Energy Transfer senior notes. As of December 31, 2021, $1 billion in principal amount of such supported Energy Transfer senior notes remains outstanding. FERC Proceedings By the Order issued January 16, 2019, the FERC initiated a review of PEPL’s existing rates pursuant to Section 5 of the NGA to determine whether the rates currently charged by PEPL are just and reasonable and set the matter for hearing. On August 30, 2019, PEPL filed a general rate proceeding under Section 4 of the NGA. The NGA Section 5 and Section 4 proceedings were consolidated by order of the Chief Judge on October 1, 2019. A hearing in the combined proceedings commenced on August 25, 2020 and adjourned on September 15, 2020. The initial decision by the administrative law judge was issued on March 26, 2021. On April 26, 2021, PEPL filed its brief on exceptions to the initial decision. On May 17, 2021, PEPL filed its brief opposing exceptions in this proceeding. This matter remains pending before FERC. Environmental Matters The Company’s operations are subject to federal, state and local laws, rules and regulations regarding water quality, hazardous and solid waste management, air quality control and other environmental matters. These laws, rules and regulations require the Company to conduct its operations in a specified manner and to obtain and comply with a wide variety of environmental registrations, licenses, permits, inspections and other approvals. Failure to comply with environmental laws, rules and regulations may expose the Company to significant fines, penalties and/or interruptions in operations. The Company’s environmental policies and procedures are designed to achieve compliance with such applicable laws and regulations. These evolving laws and regulations and claims for damages to property, employees, other persons and the environment resulting from current or past operations may result in significant expenditures and liabilities in the future. The Company engages in a process of updating and revising its procedures for the ongoing evaluation of its operations to identify potential environmental exposures and enhance compliance with regulatory requirements. The Company is responsible for environmental remediation at certain sites on its natural gas transmission systems for contamination resulting from the past use of lubricants containing polychlorinated biphenyls (“PCBs”) in compressed air systems; the past use of paints containing PCBs; and the prior use of wastewater collection facilities and other on-site disposal areas. The Company has implemented a program to remediate such contamination. The primary remaining remediation activity on the PEPL systems is associated with past use of paints containing PCBs or PCB impacts to equipment surfaces and to a building at one location. The PCB assessments are ongoing and the related estimated remediation costs are subject to further change. Other remediation typically involves the management of contaminated soils and may involve remediation of groundwater. Activities vary with site conditions and locations, the extent and nature of the contamination, remedial requirements, complexity and sharing of responsibility. The ultimate liability and total costs associated with these sites will depend upon many factors. If remediation activities involve statutory joint and several liability provisions, strict liability, or cost recovery or contribution actions, the Company could potentially be held responsible for contamination caused by other parties. In some instances, the Company may share liability associated with contamination with other potentially responsible parties. The Company may also benefit from contractual indemnities that cover some or all of the cleanup costs. These sites are generally managed in the normal course of business or operations. The Company’s environmental remediation activities are undertaken in cooperation with and under the oversight of appropriate regulatory agencies, enabling the Company under certain circumstances to take advantage of various voluntary cleanup programs in order to perform the remediation in the most effective and efficient manner. The Company had accrued $1 million in non-current liabilities as of December 31, 2021 and 2020 to cover environmental remediation actions where management believes a loss is probable and reasonably estimable. The Company is not able to estimate the possible loss or range of loss in excess of amounts accrued. The Company does not have any material environmental remediation matters assessed as reasonably possible. Liabilities for Litigation and Other Claims The Company records accrued liabilities for litigation and other claim costs when management believes a loss is probable and reasonably estimable. When management believes there is at least a reasonable possibility that a material loss or an additional material loss may have been incurred, the Company discloses (i) an estimate of the possible loss or range of loss in excess of the amount accrued; or (ii) a statement that such an estimate cannot be made. As of December 31, 2021 and 2020, the Company’s consolidated balance sheet reflected litigation and other claim-related accrued liabilities of $73 million and $41 million, respectively. The Company does not have any material litigation or other claim contingency matters assessed as probable or reasonably possible that would require disclosure in the financial statements. Other Commitments and Contingencies The Company is subject to the laws and regulations of states and other jurisdictions concerning the identification, reporting and escheatment (the transfer of property to the state) of unclaimed or abandoned funds, and is subject to audit and examination for compliance with these requirements. The Company is currently being examined by a third-party auditor on behalf of nine states for compliance with unclaimed property laws.

Leases (Notes)

12 Months Ended

Dec. 31, 2021

Leases [Abstract]

Lessor, Operating Leases

LEASES:

The Company leases office space, land, and equipment under non-cancelable operating leases whose initial terms are typically 5 to 10 years, with some real estate leases having terms of 30 years or more, along with options that permit renewals for additional periods. At contract inception, we determine if the arrangement is a lease or contains an embedded lease and review the facts and circumstances of the arrangement to classify lease assets as operating or finance leases under Accounting Standards Codification (“ASC”) Topic 842.

At present, the majority of the Company’s active leases are classified as operating in accordance with ASC Topic 842. Balances related to operating leases are included in operating lease ROU assets, other current liabilities and operating lease liabilities in our consolidated balance sheet. Finance leases represent a small portion of the active lease agreements and are included in property and equipment, other current liabilities, and other non-current liabilities in our consolidated balance sheet. The ROU assets represent the Company’s right to use an underlying asset for the lease term and lease liabilities represent the obligation of the Company to make minimum lease payments arising from the lease for the duration of the lease term.

Most leases include one or more options to renew, with renewal terms that can extend the lease term from one to 20 years or greater. The exercise of lease renewal options is typically at the sole discretion of the Company, and lease extensions are evaluated on a lease-by-lease basis. Leases containing early termination clauses typically require the agreement of both parties to the lease. At the inception of a lease, all renewal options reasonably certain to be exercised are considered when determining the lease term. Presently, the Company does not have leases that include options to purchase or automatic transfer of ownership of the leased property to the Company. The depreciable life of lease assets and leasehold improvements are limited by the expected lease term.

To determine the present value of future minimum lease payments, we use the implicit rate when readily determinable. Presently, since many of our leases do not provide an implicit rate, the Company applies its incremental borrowing rate based on the information available at the lease commencement date, to determine the present value of minimum lease payments. The operating and finance lease ROU assets include any lease payments made and exclude lease incentives.

Minimum rent payments are expensed on a straight-line basis over the term of the lease. In addition, some leases require additional contingent or variable lease payments, which are based on the factors specific to the individual agreement. Variable lease payments the Company is typically responsible for include payment of real estate taxes, maintenance expenses and insurance.

For short-term leases (leases that have term of twelve months or less upon commencement), lease payments are recognized on a straight-line basis and no ROU assets are recorded.

For the years ended December 31, 2021 and 2020, the Company recognized $0.2 million of short-term lease cost, which is reflected in operating and maintenance in the accompanying consolidated statement of operations.

The weighted-average remaining lease terms and weighted-average discount rate as of December 31, 2021 were as follows:



Weighted-average remaining lease term (years)
Operating leases			13
Weighted-average discount rate (%)
Operating leases			4%

Maturities of operating lease liabilities as of December 31, 2021 are as follows:


	Operating leases

2022	$	—
2023	1
2024	1
2025	1
2026	1
Thereafter	1
Total lease payments	5
Less: present value discount	1
Present value of lease liabilities	$	4

REVENUE Revenue (Notes)

12 Months Ended

Dec. 31, 2021

Revenue from Contract with Customer [Abstract]

Revenue from Contract with Customer [Text Block]

REVENUE:

Contract Balances with Customers

The Company satisfies its obligations by transferring goods or services in exchange for consideration from customers. The timing of performance may differ from the timing the associated consideration is paid to or received from the customer, thus resulting in the recognition of a contract asset or a contract liability.

The Company recognizes a contract asset when making upfront consideration payments to certain customers or when providing services to customers prior to the time at which the Company is contractually allowed to bill for such services. As of December 31, 2021 and 2020, no contract assets have been recognized.

The Company recognizes a contract liability if the customer's payment of consideration precedes the Company’s fulfillment of the performance obligations. As of December 31, 2021 and 2020, no contract liabilities have been recognized.

Performance Obligation

At contract inception, the Company assesses the goods and services promised in its contracts with customers and identifies a performance obligation for each promise to transfer a good or service (or bundle of goods or services) that is distinct. To identify the performance obligations, the Company considers all the goods or services promised in the contract, whether explicitly stated or implied based on customary business practices. Revenue is recognized when (or as) the performance obligations are satisfied, that is, when the customer obtains control of the good or service. Certain of our contracts contain variable components, which, when combined with the fixed component are considered a single performance obligation. For these types of contracts, only the fixed component of the contracts are included in the table below.

As of December 31, 2021, the aggregate amount of transaction price allocated to unsatisfied (or partially satisfied) performance obligations is approximately $2.27 billion, and the Company expects to recognize this amount as revenue within the time bands illustrated below:


	Years Ending December 31,
	2022		2023		2024		Thereafter		Total
Revenue expected to be recognized on contracts with customers existing as of December 31, 2021	$	421	$	370	$	256	$	1,219	$	2,266

Practical Expedients Utilized by the Company

The Company elected the following practical expedients in accordance with Topic 606:

•Right to invoice - The Company elected to utilize an output method to recognize revenue that is based on the amount to which the Company has a right to invoice a customer for services performed to date, if that amount corresponds

directly with the value provided to the customer for the related performance or its obligation completed to date. As such, the Company recognized revenue in the amount to which it had the right to invoice customers.

•Significant financing component - The Company elected not to adjust the promised amount of consideration for the effects of significant financing component if the Company expects, at contract inception, that the period between the transfer of a promised good or service to a customer and when the customer pays for that good or service will be one year or less.

•Unearned variable consideration - The Company elected to only disclose the unearned fixed consideration associated with unsatisfied performance obligations related to our various customer contracts which contain both fixed and variable components.

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-URI http://asc.fasb.org/topic&trid=49130388

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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+ Details

Estimates, Significant Accounting Policies and Balance Sheet Detail (Policies)

12 Months Ended

Dec. 31, 2021

Accounting Policies [Abstract]

Basis of Presentation and Significant Accounting Policies [Policy Text Block]

Consolidation, Policy [Policy Text Block]

The Company’s consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”). The consolidated financial statements include the accounts of all majority-owned subsidiaries, after eliminating significant intercompany transactions and balances. Investments in which the Company has significant influence over the operations of the investee are accounted for using the equity method.

Use of Estimates, Policy [Policy Text Block]

Cash and Cash Equivalents, Policy [Policy Text Block]

Inventory, Policy [Policy Text Block]

Natural Gas Exchanges [Policy Text Block]

Fuel Tracker [Policy Text Block]

Property, Plant and Equipment, Policy [Policy Text Block]

Property, Plant and Equipment.

The following table presents the components of property, plant and equipment:


		December 31,
	Lives in Years	2021		2020
Land and improvements		$	4	$	4
Buildings and improvements	6 – 46	195		197
Pipelines and equipment	5 – 46	2,684		2,631
Natural gas storage facilities	26 – 46	368		360





Other	3 – 21	145		142
Construction work in progress		25		15
Property, plant and equipment		3,421		3,349
Accumulated depreciation and amortization		(813)		(717)
Property, plant and equipment, net		$	2,608	$	2,632

Depreciation. The Company computes depreciation expense using the straight-line method.

Environmental Cost, Expense Policy [Policy Text Block]

Revenue [Policy Text Block]

Receivables, Trade and Other Accounts Receivable, Allowance for Doubtful Accounts, Policy [Policy Text Block]

The allowance for expected credit losses was not material as of December 31, 2021 and 2020.

Accumulated Other Comprehensive Loss [Policy Text Block]

Pension and Other Postretirement Plans, Policy [Policy Text Block]

Retirement Benefits. The Company recognizes the overfunded or underfunded status of defined benefit pension and other postretirement plans, measured as the difference between the fair value of the plan assets and the benefit obligation (the projected benefit obligation for pension plans and the accumulated postretirement benefit obligation for other postretirement plans). Each overfunded plan is recognized as an asset and each underfunded plan is recognized as a liability. Changes in the funded status of the plan are recorded in other comprehensive income in partners’ capital in the year in which the change occurs.

Fair Value of Financial Instruments, Policy [Policy Text Block]

•Level 1 – Observable inputs such as quoted prices in active markets for identical assets or liabilities;

Asset Retirement Obligation [Policy Text Block]

Income Tax, Policy [Policy Text Block]

Income Taxes. Income taxes are accounted for under the asset and liability method. Under this method, deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax basis. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rate is recognized in earnings in the period that includes the enactment date. Valuation allowances are established when necessary to reduce deferred tax assets to the amounts more likely than not to be realized.The determination of the provision for income taxes requires significant judgment, use of estimates, and the interpretation and application of complex tax laws. Significant judgment is required in assessing the timing and amounts of deductible and taxable items and the probability of sustaining uncertain tax positions. The benefits of uncertain tax positions are recorded in our financial statements only after determining a more-likely-than-not probability that the uncertain tax positions will withstand challenge, if any, from taxing authorities. When facts and circumstances change, we reassess these probabilities and record any changes through the provision for income taxes.

Commitments and Contingencies, Policy [Policy Text Block]

Commitments and Contingencies. The Company is subject to proceedings, lawsuits and other claims related to environmental and other matters. Accounting for contingencies requires significant judgment by management regarding the estimated probabilities and ranges of exposure to potential liability.

ESTIMATES, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND BALANCE SHEET DETAIL Estimates, Significant Accounting Policies and Balance Sheet Detail (Tables)

12 Months Ended

Dec. 31, 2021

Summary of Significant Accounting Policies [Abstract]

Other Current Liabilities [Table Text Block]

Other Current Liabilities. Other current liabilities consisted of the following:


	December 31,
	2021		2020
Deposits from customers	$	14	$	8
Accrued expenses	34		13
Accrued capital expenditures	8		4


Other	6		8
Total other current liabilities	$	62	$	33

Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]

Non-cash investing and financing activities and supplemental cash flow information are as follows:


	Years Ended December 31,
	2021		2020		2019
Non-cash investing and financing activities:





Settlement of affiliate liability - related company payables	$	—	$	(4)	$	—


Supplemental cash flow information:
Accrued capital expenditures	$	8	$	4	$	11
Cash paid for interest, net of interest capitalized	15		16		23

Cash paid for interest on note payable to related company	18		33		23

Property, Plant and Equipment [Table Text Block]


		December 31,
	Lives in Years	2021		2020
Land and improvements		$	4	$	4
Buildings and improvements	6 – 46	195		197
Pipelines and equipment	5 – 46	2,684		2,631
Natural gas storage facilities	26 – 46	368		360





Other	3 – 21	145		142
Construction work in progress		25		15
Property, plant and equipment		3,421		3,349
Accumulated depreciation and amortization		(813)		(717)
Property, plant and equipment, net		$	2,608	$	2,632

Schedule of Inventory, Current [Table Text Block]

The following table presents the components of inventory:


	December 31,
	2021		2020

Natural gas (1)	$	36	$	63
Materials and supplies	21		23
	$	57	$	86

(1)Natural gas volumes held for operations at December 31, 2021 and 2020 were 11.4 TBtu and 29.2 TBtu, respectively.

Other Noncurrent Liabilities [Table Text Block]

Other Non-Current Liabilities. Other non-current liabilities consisted of the following:


	December 31,
	2021		2020
Pension liability	$	110	$	97
ARO	56		37
Provision for rate refunds (1)	57		24
Other	89		88
Total other non-current liabilities	$	312	$	246

(1) Provision for rate refunds represents future amounts to be settled with the Company’s shippers under FERC regulation.

Schedules of Concentration of Risk, by Risk Factor

The following table presents the relative contribution to the Company’s total operating revenue from operations of each customer that comprised at least 10% of its operating revenues:


	Years Ended December 31,
	2021		2020		2019
Customer A	12	%	12	%	10	%
Customer B	17		17		16
Other top 10 customers	29		31		31
Remaining customers	42		40		43
Total percentage	100	%	100	%	100	%

Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2021

The following table provides a summary of related party activity included in our consolidated statements of operations:


	Years Ended December 31,
	2021		2020		2019
Operating revenues	$	90	$	90	$	95

Operating and maintenance	19		15		27
General and administrative	25		23		18


Interest expense — related company	17		32		25

Debt Obligations (Tables)

12 Months Ended

Dec. 31, 2021

Debt Disclosure [Abstract]

Schedule Of Debt Instruments

The following table sets forth the debt obligations of the Company:


	December 31,
	2021		2020



7.60% Senior Notes due February 1, 2024	$	82	$	82
7.00% Senior Notes due July 15, 2029	66		66
8.25% Senior Notes due November 15, 2029	33		33
Floating Rate Junior Subordinated Notes due November 1, 2066	54		54

Unamortized fair value adjustments	8		10
Total long-term debt outstanding	$	243	$	245

Schedule of Maturities of Long-term Debt

As of December 31, 2021, the Company has scheduled long-term debt principal payments as follows:


Years Ending December 31,
2022	$	—
2023	—
2024	82
2025	—
2026	—
Thereafter	153
Total	$	235

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Paragraph 1
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04(a))
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Reference 5: http://www.xbrl.org/2003/role/exampleRef
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+ Details

Retirement Benefits (Tables)

12 Months Ended

Dec. 31, 2021

Postemployment Benefits [Abstract]

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

The following tables contain information at the dates indicated about the obligations and funded status of the Company’s other postretirement plans.


	December 31,
	2021		2020
Change in benefit obligation:
Benefit obligation at beginning of period	$	98	$	91
Service cost	1		1
Interest cost	2		3

Actuarial loss	1		7
Benefits paid, net	(4)		(4)


Benefit obligation at end of period	$	98	$	98
Change in plan assets:
Fair value of plan assets at beginning of period	$	191	$	169
Return on plan assets and other	23		18
Employer contributions	8		8
Benefits paid, net	(4)		(4)

Fair value of plan assets at end of period	$	218	$	191

Amount overfunded at end of period (1)	$	120	$	93

Amounts recognized in accumulated other comprehensive income (pre-tax basis) consist of:
Net actuarial gain	$	(21)	$	(8)
Prior service cost	18		19
	$	(3)	$	11

(1)Recorded as a non-current asset in the consolidated balance sheets with a non-current pension liability for overfunded amounts owed to the Company’s shippers.

Schedule of Net Benefit Costs [Table Text Block]

The following tables set forth the components of net periodic benefit cost of the Company’s postretirement benefit plan for the periods presented:


	Years Ended December 31,
	2021		2020		2019
Service cost	$	1	$	1	$	1
Interest cost	2		3		3
Expected return on plan assets	(10)		(9)		(7)
Prior service credit amortization	1		18		24


Net periodic benefit cost	$	(6)	$	13	$	21

Defined Benefit Plan, Assumptions [Table Text Block]

The weighted-average assumptions used in determining net periodic benefit cost for the periods presented are shown in the table below:


	Years Ended December 31,
	2021		2020		2019
Discount rate	2.18	%	3.00	%	4.05	%
Expected return on assets:
Tax exempt accounts	7.00	%	7.00	%	7.00	%
Taxable accounts	4.75	%	4.75	%	4.75	%

Schedule of Health Care Cost Trend Rates [Table Text Block]

The assumed health care cost trend weighted-average rates used to measure the expected cost of benefits covered by the plans are shown in the table below:


	December 31,
	2021		2020
Health care cost trend rate	8.10	%	8.05	%
Rate to which the cost trend is assumed to decline (the ultimate trend rate)	4.90	%	4.65	%
Year that the rate reaches the ultimate trend rate	2029		2028

Schedule of Allocation of Plan Assets [Table Text Block]

The fair value of the Company’s other postretirement plan assets at the dates indicated by asset category is as follows:


	December 31,
	2021		2020
Cash and cash equivalents	$	14	$	11
Total Market Index Fund (1)	111		87
Total International Index Fund(2)	19		18
U.S. Bond Index Fund (3)	74		75
Total	$	218	$	191

Schedule of Expected Benefit Payments [Table Text Block]


Years	Expected Benefit Payments
2022	$	6
2023	6
2024	6
2025	6
2026	6
2027-2031	26

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2021

Income Tax Disclosure [Abstract]

Schedule of Income Tax Expense (Benefit) and Effective Income Tax Rate


	Year Ended December 31,
	2019
Current expense:
Federal	$	31
State	8
Total	39
Deferred benefit:
Federal	$	(349)
State	(92)
Total	(441)
Total income tax benefit	$	(402)

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]


	Year Ended December 31,
	2019
Current expense:
Federal	$	31
State	8
Total	39
Deferred benefit:
Federal	$	(349)
State	(92)
Total	(441)
Total income tax benefit	$	(402)

ASSET RETIREMENT OBLIGATIONS Asset Retirement Obligations (Tables)

12 Months Ended

Dec. 31, 2021

Asset Retirement Obligation Disclosure [Abstract]

Schedule of Change in Asset Retirement Obligation


	Years Ended December 31,
	2021		2020		2019
Beginning balance	$	37	$	35	$	26

Revisions	17		—		9
Settled	—		—		(2)

Accretion expense	2		2		2
Ending balance	$	56	$	37	$	35

Leases (Tables)

12 Months Ended

Dec. 31, 2021

Leases [Abstract]

Lessee, Operating Lease, Liability, Maturity [Table Text Block]

The weighted-average remaining lease terms and weighted-average discount rate as of December 31, 2021 were as follows:



Weighted-average remaining lease term (years)
Operating leases			13
Weighted-average discount rate (%)
Operating leases			4%

Maturities of operating lease liabilities as of December 31, 2021 are as follows:


	Operating leases

2022	$	—
2023	1
2024	1
2025	1
2026	1
Thereafter	1
Total lease payments	5
Less: present value discount	1
Present value of lease liabilities	$	4

REVENUE Revenue (Tables)

12 Months Ended

Dec. 31, 2021

Revenue from Contract with Customer [Abstract]

Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]


	Years Ending December 31,
	2022		2023		2024		Thereafter		Total
Revenue expected to be recognized on contracts with customers existing as of December 31, 2021	$	421	$	370	$	256	$	1,219	$	2,266

Description of the Business (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2019
Description of the Business
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Restructuring Charges, Amount		$ 428
Energy Transfer
Description of the Business
Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest	1.00%
PEPL
Description of the Business
Limited partnership interest	99.00%

ESTIMATES, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND BALANCE SHEET DETAIL Estimates, Significant Accounting Policies and Balance Sheet Detail - New Accounting Pronouncements (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating Lease, Right-of-Use Asset	$ 4	$ 5
Operating Lease, Liability, Noncurrent	3	$ 5
Present value of lease liabilities	$ 4

ESTIMATES, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND BALANCE SHEET DETAIL Estimates, Significant Accounting Policies and Balance Sheet Detail - Cash and Cash Equivalents (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restricted Cash and Cash Equivalents Items
Settlement of affiliate liability - related party payables	$ 0	$ (4)	$ 0
Capital Expenditures Incurred but Not yet Paid	8	4	11
Interest Paid, Excluding Capitalized Interest, Operating Activities	15	16	23
Affiliated Entity
Restricted Cash and Cash Equivalents Items
Dividends and Interest Paid	$ 18	$ 33	$ 23

ESTIMATES, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND BALANCE SHEET DETAIL Estimates, Significant Accounting Policies and Balance Sheet Detail - Inventory (Details)
MMbtu in Millions, $ in Millions

12 Months Ended

Dec. 31, 2021

USD ($)

MMbtu

Dec. 31, 2020

USD ($)

MMbtu

Inventory Accounting Policies [Abstract]

^[1]

$ 36

$ 63

Inventory, Raw Materials and Supplies

Inventories

$ 57

$ 86

Natural Gas Volumes | MMbtu

11.4

29.2

Interest Costs Capitalized

$ 0

$ 2

[1]	Natural gas volumes held for operations at December 31, 2021 and 2020 were 11.4 TBtu and 29.2 TBtu, respectively.

ESTIMATES, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND BALANCE SHEET DETAIL Estimates, Significant Accounting Policies and Balance Sheet Detail - PPE (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 3,421	$ 3,349
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	813	717
Net property, plant and equipment	2,608	2,632
Land and Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	4	4
Construction Work-In-Process [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	25	15
Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 195	197
Building and Building Improvements [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	6 years
Building and Building Improvements [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	46 years
Pipelines [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 2,684	2,631
Pipelines [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	5 years
Pipelines [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	46 years
Natural Gas, Storage [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 368	360
Natural Gas, Storage [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	26 years
Natural Gas, Storage [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	46 years
Property, Plant and Equipment, Other Types [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 145	$ 142
Property, Plant and Equipment, Other Types [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	3 years
Property, Plant and Equipment, Other Types [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	21 years

ESTIMATES, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND BALANCE SHEET DETAIL Estimates, Significant Accounting Policies and Balance Sheet Detail - Other Current Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Other Liabilities, Current [Abstract]
Customer Advances and Deposits, Current	$ 14	$ 8
Accrued Liabilities and Other Liabilities	34	13
Accrued Capital Expenditures	8	4
Other Accrued Liabilities	6	8
Other current liabilities	$ 62	$ 33

ESTIMATES, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND BALANCE SHEET DETAIL Estimates, Significant Accounting Policies and Balance Sheet Detail - Other Non-Current Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Other Liabilities Disclosure [Abstract]
Liability, Other Retirement Benefits, Noncurrent	$ 110	$ 97
Asset Retirement Obligation	56	37
Provision for rate refunds (1)	57	24
Other Accrued Liabilities, Current	89	88
Other Liabilities, Noncurrent	$ 312	$ 246

ESTIMATES, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND BALANCE SHEET DETAIL Estimates, Significant Accounting Policies and Balance Sheet Detail - Top Customers (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenue Benchmark
Entity-Wide Revenue, Major Customer, Percentage	10.00%
Customer Concentration Risk \| 10%
Entity-Wide Revenue, Major Customer, Percentage	100.00%	100.00%	100.00%
Customer Concentration Risk \| 10% \| Customer A [Member]
Entity-Wide Revenue, Major Customer, Percentage	12.00%	12.00%	10.00%
Customer Concentration Risk \| 10% \| Customer B [Member]
Entity-Wide Revenue, Major Customer, Percentage	17.00%	17.00%	16.00%
Customer Concentration Risk \| 10% \| Other Top 10 Customers
Entity-Wide Revenue, Major Customer, Percentage	29.00%	31.00%	31.00%
Customer Concentration Risk \| 10% \| Remaining Customers
Entity-Wide Revenue, Major Customer, Percentage	42.00%	40.00%	43.00%

ESTIMATES, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND BALANCE SHEET DETAIL Estimates, Significant Accounting Policies and Balance Sheet Detail - Capitalized Interest (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Accounting Policies [Abstract]
Interest Costs Capitalized	$ 0	$ 2

ESTIMATES, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND BALANCE SHEET DETAIL Estimates, Significant Accounting Policies and Balance Sheet Detail - Fair Value (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Available-for-sale Securities [Member]
Investments, Fair Value Disclosure	$ 39	$ 34
Fair Value, Inputs, Level 1 [Member] \| Equity Securities [Member]
Investments, Fair Value Disclosure	26	22
Fair Value, Inputs, Level 2 [Member] \| Fixed Income Securities [Member]
Investments, Fair Value Disclosure	$ 13	$ 12

Related Party Transactions (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Related Party Transaction
Interest Expense, Related Party	$ 17	$ 32	$ 25
Affiliated Entity
Related Party Transaction
Revenue from Related Parties	90	90	95
Related Party Transaction, Expenses from Transactions with Related Party	19	15	27
Related Party Operating, Maintenance and General Expenses	$ 25	$ 23	$ 18

- Definition

Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(iv))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07.1(c))
-URI http://asc.fasb.org/extlink&oid=120401555&loc=SL114874292-224272

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(4)(iii)(B))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(iii)(C))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(5))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(5))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(4)(iv))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(e))
-URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227

+ Details

Related Party (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
Related Party (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2021
Non-Cash Equity Contribution	$ 4
Note payable to related company	550	$ 221
Limited Partner [Member]
Non-Cash Equity Contribution	$ 4
Affiliated Entity
Debt Instrument, Interest Rate, Stated Percentage		4.898%

Debt Obligations - Instruments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument
Junior Subordinated Notes	$ 54	$ 54
Note payable to related company	221	550
Unamortized Net Premiums And Fair Value Adjustments	8	10
Long-term Debt	$ 243	245
8.125% Senior Notes due 2019
Debt Instrument
Debt Instrument, Interest Rate, Stated Percentage	8.125%
7.60% Senior Notes, due February 1, 2024 [Member]
Debt Instrument
Senior Notes	$ 82	82
Long-term Debt, Description	7.60% Senior Notes due February 1, 2024
Debt Instrument, Interest Rate, Stated Percentage	7.60%
Senior Notes Due 2029 [Member]
Debt Instrument
Senior Notes	$ 66	66
Long-term Debt, Description	7.00% Senior Notes due July 15, 2029
Debt Instrument, Interest Rate, Stated Percentage	7.00%
8.25% Senior Notes, due November 14, 2029 [Member]
Debt Instrument
Senior Notes	$ 33	$ 33
Long-term Debt, Description	8.25% Senior Notes due November 15, 2029
Debt Instrument, Interest Rate, Stated Percentage	8.25%

DEBT OBLIGATIONS Debt Obligations - Future Maturities (Details) $ in Millions	Dec. 31, 2021 USD ($)
Debt Disclosure [Abstract]
2022	$ 0
2023	0
2024	82
2025	0
2026	0
Long Term Debt Maturities Repayments Of Principal Total	235
Thereafter	$ 153

Debt Obligations - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument
Debt Instrument, Fair Value Disclosure	$ 253	$ 256
Long term debt, amount outstanding	243	245
Note payable to related company	221	550
Junior Subordinated Notes	54	54
Unamortized Net Premiums And Fair Value Adjustments	$ 8	$ 10
3.26% Junior Subordinated Notes due November 1, 2066 [Member]
Debt Instrument
Debt Instrument, Interest Rate, Stated Percentage	3.0175%
Long-term Debt, Weighted Average Interest Rate, at Point in Time	3.149%	3.232%
8.125% Senior Notes due 2019
Debt Instrument
Debt Instrument, Interest Rate, Stated Percentage	8.125%
Senior Notes Due 2029 [Member]
Debt Instrument
Senior Notes	$ 66	$ 66
Debt Instrument, Interest Rate, Stated Percentage	7.00%
7.60% Senior Notes, due February 1, 2024 [Member]
Debt Instrument
Senior Notes	$ 82	82
Debt Instrument, Interest Rate, Stated Percentage	7.60%
8.25% Senior Notes, due November 14, 2029 [Member]
Debt Instrument
Senior Notes	$ 33	$ 33
Debt Instrument, Interest Rate, Stated Percentage	8.25%

RETIREMENT BENEFITS Retirement Benefits - Obligations and Funded Status (Details) - USD ($)
$ in Millions

12 Months Ended

Dec. 31, 2021

Dec. 31, 2020

Dec. 31, 2019

Defined Benefit Plan, Service Cost

$ 1

Interest cost

Fair value of plan assets at beginning of period

191

Fair value of plan assets at end of period

218

191

Other Postretirement Benefits Plan [Member]

Benefit obligation at beginning of period

Defined Benefit Plan, Service Cost

Interest cost

Actuarial loss

Benefit obligation at end of period

Fair value of plan assets at beginning of period

191

169

Return on plan assets and other

Employer contributions

Defined Benefit Plan, Benefit Obligation, Benefits Paid

Fair value of plan assets at end of period

218

191

$ 169

Amount overfunded at end of period (1)

^[1]

120

Net actuarial gain

(21)

(8)

Prior service cost

Amounts recognized in accumulated other comprehensive income (pre-tax basis) consist of:

$ (3)

$ 11

[1]	Recorded as a non-current asset in the consolidated balance sheets with a non-current pension liability for overfunded amounts owed to the Company’s shippers.

Retirement Benefits- Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure
Defined Benefit Plan, Service Cost	$ 1	$ 1	$ 1
Interest cost	2	3	3
Expected return on plan assets	(10)	(9)	(7)
Prior service credit amortization	1	18	24
Net periodic benefit cost	$ (6)	$ 13	$ 21

RETIREMENT BENEFITS Retirement Benefits - Weighted-average Assumptions (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Postemployment Benefits [Abstract]
Discount rate	2.18%	3.00%	4.05%
Tax exempt accounts	7.00%	7.00%	7.00%
Expected long term reurn on assets, taxable accounts	4.75%	4.75%	4.75%

RETIREMENT BENEFITS Benefits - Assumed Health Care Cost Trend Rates Used (Details)	Dec. 31, 2021	Dec. 31, 2020
Postemployment Benefits [Abstract]
Health care cost trend rate	8.10%	8.05%
Rate to which the cost trend is assumed to decline (the ultimate trend rate)	4.90%	4.65%

RETIREMENT BENEFITS Retirement Benefits - Fair Value of Assets by Category (Details) - USD ($)
$ in Millions

Dec. 31, 2021

Dec. 31, 2020

Dec. 31, 2019

Defined Benefit Plan, Plan Assets, Amount

$ 218

$ 191

Cash and Cash Equivalents

Defined Benefit Plan, Plan Assets, Amount

Market index fund [Member]

Defined Benefit Plan, Plan Assets, Amount

^[1]

111

International index fund [Member]

Defined Benefit Plan, Plan Assets, Amount

^[2]

U.S. bond index fund [Member]

Defined Benefit Plan, Plan Assets, Amount

^[3]

Other Postretirement Benefits Plan [Member]

Defined Benefit Plan, Plan Assets, Amount

$ 218

$ 191

$ 169

Other Postretirement Benefits Plan [Member] | Market index fund [Member]

Large Cap US Equitiies

100.00%

Other Postretirement Benefits Plan [Member] | International index fund [Member]

Large Cap US Equitiies

3.00%

International Securities Funds

97.00%

Other Postretirement Benefits Plan [Member] | U.S. bond index fund [Member]

Large Cap US Equitiies

25.00%

Fixed Income Securities

40.00%

[1]	The fund invests primarily in common stocks included in the Dow Jones U.S. Total Stock Market Index. As of December 31, 2021, this fund was invested 100% in domestic equities.
[2]	The fund invests primarily in both the securities and in depository receipts representing securities included in the MSCI All Country World Index. As of December 31, 2021, this fund was invested 97% in foreign equities and 3% in domestic equities.
[3]	The fund invests primarily in bonds included in the Bloomberg Barclays U.S. Aggregate Bond Index. As of December 31, 2021, this fund was invested 40% in U.S. Treasury, 27% in mortgage-backed securities, 25% in corporations and 8% in other.

- Definition

Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

+ References + Details

RETIREMENT BENEFITS Retirement Benefits - Estimate of Expected Benefit Payments (Details) - Other Postretirement Benefits Plan [Member] $ in Thousands	Dec. 31, 2021 USD ($)
2022	$ 6,000
2023	6,000
2024	6,000
2025	6,000
2026	6,000
Thereafter	$ 26,000

RETIREMENT BENEFITS Retirement Benefits - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure
Defined Contribution Plan Employers Matching Contribution Percentage to Participants Percentage Conribution	100.00%
Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year	$ 8.0
Defined Contribution Plan, Employer Matching Contribution, Percent	5.00%
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Prior Service Cost Arising During Period, before Tax	$ 1.0
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	2.50%	2.16%
Other Postretirement Benefits Plan [Member] \| Fixed Income Securities
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	70.00%
Other Postretirement Benefits Plan [Member] \| Market index fund [Member]
Defined Benefit Plan Disclosure
Large Cap US Equitiies		100.00%
Other Postretirement Benefits Plan [Member] \| International index fund [Member]
Defined Benefit Plan Disclosure
Large Cap US Equitiies		3.00%
International Securities Funds		97.00%
Other Postretirement Benefits Plan [Member] \| U.S. bond index fund [Member]
Defined Benefit Plan Disclosure
Large Cap US Equitiies		25.00%
Other securities		8.00%
Fixed Income Securities		40.00%
Mortgage-backed securities		27.00%
Savings Plan [Member]
Defined Benefit Plan Disclosure
Defined Contribution Plan, Cost	$ 2.0	$ 1.0	$ 2.0
Supplemental Employee Retirement Plan [Member]
Defined Benefit Plan Disclosure
Defined Contribution Plan, Employer Matching Contribution, Percent	3.00%
Company Contributions Vested	100.00%
Company Contributions Years	five
Defined Contribution Plan, Cost	$ 1.0	$ 0.5	$ 1.0
Minimum [Member] \| Other Postretirement Benefits Plan [Member] \| Equity Securities
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	25.00%
Minimum [Member] \| Other Postretirement Benefits Plan [Member] \| Fixed Income Securities
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	65.00%
Maximum [Member] \| Other Postretirement Benefits Plan [Member] \| Equity Securities
Defined Benefit Plan Disclosure
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	30.00%

Income Taxes - Current and Deferred (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Federal			$ 31
State			8
Current Income Tax Expense (Benefit)			39
Federal			(349)
State			(92)
Deferred income taxes			(441)
Total income tax benefit	$ (1)	$ (3)	$ (402)

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References + Details

INCOME TAXES Income Taxes - Effective Rate Reconciliation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Schedule of Effective Income Tax Rate Reconciliation [Line Items]
Total income tax benefit	$ (1)	$ (3)	$ (402)

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References + Details

INCOME TAXES Income Taxes - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($)
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Restructuring Charges, Amount	$ 428

ASSET RETIREMENT OBLIGATIONS Asset Retirement Obligations - Schedule of Changes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Asset Retirement Obligation Disclosure [Abstract]
Beginning balance	$ 37	$ 35	$ 26
Revisions	17	0	9
Settled	0	0	(2)
Accretion expense	2	2	2
Ending balance	$ 56	$ 37	$ 35

ASSET RETIREMENT OBLIGATIONS Asset Retirement Obligations - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Asset Retirement Obligation, Revision of Estimate	$ 17	$ 0	$ 9
Asset Retirement Obligation, Liabilities Settled	$ 0	$ 0	$ 2

Regulatory Matters (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Loss Contingencies [Line Items]
Contingent Residual Support Agreement, Amount	$ 1,000
Estimated litigation liability	73	$ 41
Accrued Environmental Loss Contingencies, Noncurrent	$ 1

Leases Narrative (Details) - USD ($) $ in Millions	12 Months Ended
Leases Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Short-term Lease, Cost	$ 0.2	$ 0.2
Short-term Lease, Cost	$ 0.2	$ 0.2
Real Estate [Member]
Lessee, Operating Lease, Term of Contract	30 years
Maximum [Member] \| Equipment [Member]
Lessee, Operating Lease, Term of Contract	10 years
Minimum [Member] \| Equipment [Member]
Lessee, Operating Lease, Term of Contract	5 years

Leases Lease Maturity (Details) $ in Millions	Dec. 31, 2021 USD ($)
Leases [Abstract]
Weighted-average remaining lease term (years)	13 years
Weighted-average discount rate (%)	4.00%
2022	$ 0
2023	1
2024	1
2025	1
2026	1
Thereafter	1
Total lease payments	5
Less: present value discount	1
Present value of lease liabilities	$ 4

REVENUE Revenue Narrative (Details) $ in Millions	Dec. 31, 2021 USD ($)
Revenue from Contract with Customer [Abstract]
Contract with Customer, Asset, after Allowance for Credit Loss	$ 0
Contract with Customer, Liability	$ 0

REVENUE Revenue - Schedule of Future Contract Recognition (Details) $ in Millions	Dec. 31, 2021 USD ($)
Revenue from Contract with Customer [Abstract]
Revenue, Remaining Performance Obligation, Amount	$ 2,266
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	2,266
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue from Contract with Customer [Abstract]
Revenue, Remaining Performance Obligation, Amount	$ 421
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Year	2022
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Year	2022
Revenue, Remaining Performance Obligation, Amount	$ 421
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Revenue from Contract with Customer [Abstract]
Revenue, Remaining Performance Obligation, Amount	$ 370
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Year	2023
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	2 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Year	2023
Revenue, Remaining Performance Obligation, Amount	$ 370
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	2 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Revenue from Contract with Customer [Abstract]
Revenue, Remaining Performance Obligation, Amount	$ 256
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Year	2024
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	3 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Year	2024
Revenue, Remaining Performance Obligation, Amount	$ 256
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	3 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Revenue from Contract with Customer [Abstract]
Revenue, Remaining Performance Obligation, Amount	$ 1,219
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	4 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 1,219
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	4 years