Debt Instrument, Incremental Decrease in Basis Spread on Variable Rate Resulting from Upgrades

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Debt Instrument, Incremental Increase in Basis Spread on Variable Rate Resulting from Downgrades

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Debt Instrument, Purchase Accounting, Non-Cash Fair Value Adjustment

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Debt Instrument, Purchase Accounting, Non-Cash Fair Value Adjustment, Percentage

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Debt Instrument, Selling Price, Percentage of Face Value

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Payment to Fund Tender Offers, Amount

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Tender Offer Fund, Amount

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Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Face (par) amount of the original debt instrument that was repurchased.

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- Definition

Amount of unamortized debt discount (premium) and debt issuance costs.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders.

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Debt (Senior Notes - Narrative) (Details) - USD ($)				1 Months Ended		6 Months Ended		12 Months Ended
Debt (Senior Notes - Narrative) (Details) - USD ($)	Dec. 22, 2021	Sep. 01, 2021	Aug. 30, 2021	Aug. 31, 2020	Jan. 31, 2015	Jun. 30, 2020	Dec. 31, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Jan. 31, 2022	Nov. 30, 2021	Apr. 07, 2020	Jul. 31, 2018
Debt Instrument [Line Items]
Gain (Loss) on Early Extinguishment of Debt								$ (93,000,000)	$ 35,000,000	$ 8,000,000
Long-term debt								$ 5,407,000,000	$ 3,150,000,000
Senior Notes
Debt Instrument [Line Items]
Repayments of long-term debt			$ 845,000,000				$ 54,000,000
Gain (Loss) on Early Extinguishment of Debt	$ (33,000,000)		$ (60,000,000)			$ 35,000,000	$ 8,000,000
Debt instrument, purchase accounting, non-cash fair value adjustment		$ 26,000,000
Senior Notes \| LIBOR
Debt Instrument [Line Items]
Incremental increase in basis points resulting from downgrades					0.25%
Incremental decrease in basis points resulting from upgrades					0.25%
4.95% Senior Notes due January 2025 (3) \| Senior Notes
Debt Instrument [Line Items]
Senior notes					$ 1,000,000,000
Stated interest rate			4.95%		4.95%		4.95%	4.95%	4.95%	4.95%			6.45%	6.20%
Debt repurchased face amount			$ 167,000,000			$ 36,000,000	$ 35,000,000			$ 35,000,000
Long-term debt									$ 851,000,000
4.95% Senior Notes due January 2025 (3) \| Senior Notes \| Subsequent Event
Debt Instrument [Line Items]
Stated interest rate											5.95%
7.50% Senior Notes due April 2026 \| Senior Notes
Debt Instrument [Line Items]
Stated interest rate			7.50%			7.50%	7.50%		7.50%	7.50%
Debt repurchased face amount			$ 618,000,000			$ 21,000,000	$ 11,000,000			$ 11,000,000
Long-term debt									$ 612,000,000
7.75% Senior Notes due October 2027 \| Senior Notes
Debt Instrument [Line Items]
Stated interest rate							7.75%	7.75%	7.75%	7.75%
Debt repurchased face amount						44,000,000	$ 16,000,000			$ 16,000,000
Long-term debt									$ 435,000,000
4.10% Senior Notes due March 2022 \| Senior Notes
Debt Instrument [Line Items]
Stated interest rate			4.10%					4.10%	4.10%
Debt repurchased face amount			$ 6,000,000			6,000,000
Long-term debt									$ 207,000,000
4.05% Senior Notes Due January 2020 \| Senior Notes
Debt Instrument [Line Items]
Debt repurchased face amount						$ 72,000,000
8.375% Senior Notes due September 2028 \| Senior Notes
Debt Instrument [Line Items]
Senior notes				$ 350,000,000
Stated interest rate								8.375%	8.375%
Proceeds from issuance of long-term debt				$ 345,000,000
Percentage price of face value of the notes sold to the public				100.00%
Long-term debt									$ 345,000,000
Eight Point Eight Seven Five Percent Senior Notes Due 2023 \| Senior Notes \| Montage Resources Corporation
Debt Instrument [Line Items]
Senior notes				$ 510,000,000
Stated interest rate				8.875%
5.375% Senior Notes due March 2030 \| Senior Notes
Debt Instrument [Line Items]
Senior notes			$ 1,200,000,000
Stated interest rate			5.375%					5.375%
Proceeds from issuance of long-term debt			$ 1,183,000,000
Debt instrument, unamortized discount (premium) and debt issuance costs, net			$ 6,000,000
5.375% Senior Notes due February 2029 \| Senior Notes
Debt Instrument [Line Items]
Stated interest rate		5.375%						5.375%
Debt instrument, purchase accounting, non-cash fair value adjustment, percentage		103.766%
Long-term debt		$ 700,000,000										$ 700,000,000
5.375% Senior Notes due February 2029 \| Senior Notes \| Indigo Natural Resources, LLC
Debt Instrument [Line Items]
Stated interest rate		5.375%
Senior note assumed in merger agreement		$ 700,000,000
4.75% Senior Notes due February 2032 \| Senior Notes
Debt Instrument [Line Items]
Senior notes	1,150,000,000
Stated interest rate								4.75%
Proceeds from issuance of long-term debt	1,133,000,000
Debt instrument, unamortized discount (premium) and debt issuance costs, net	1,000,000
Payment to fund tender offers, amount	332,000,000
Tender offer fund, amount	$ 300,000,000