CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash Flows From Operating Activities:
Net income (loss)	$ (25)	$ (3,112)	$ 891
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation, depletion and amortization	546	357	471
Amortization of debt issuance costs	9	9	8
Impairments	6	2,830	16
Deferred income taxes	0	409	(409)
(Gain) loss on derivatives, unsettled	944	138	(94)
Stock-based compensation	2	3	8
(Gain) loss on early extinguishment of debt	93	(35)	(8)
Loss on sale of assets	0	0	2
Other	(3)	6	10
Changes in assets and liabilities, net of effect of Mergers:
Accounts receivable	(425)	50	234
Accounts payable	261	(131)	(141)
Taxes payable	(4)	(7)	0
Interest payable	6	(11)	0
Inventories	(3)	2	(7)
Other assets and liabilities	(44)	20	(17)
Net cash provided by operating activities	1,363	528	964
Cash Flows From Investing Activities:
Capital investments	(1,032)	(896)	(1,099)
Proceeds from sale of property and equipment	4	12	54
Cash acquired in mergers	66	3	0
Cash paid in mergers	(1,642)	0	0
Net cash used in investing activities	(2,604)	(881)	(1,045)
Cash Flows From Financing Activities:
Payments on current portion of long-term debt	0	0	(52)
Payments on long-term debt	(1,177)	(72)	(54)
Payments on revolving credit facility	(6,628)	(1,671)	(532)
Borrowings under revolving credit facility	6,388	2,337	566
Change in bank drafts outstanding	5	1	(19)
Repayment of revolving credit facilities associated with Mergers	(176)	(200)	0
Repayment of Montage senior notes	0	(522)	0
Proceeds from issuance of long-term debt	2,900	350	0
Debt issuance and other financing costs	(53)	(10)	(3)
Proceeds from issuance of common stock	0	152	0
Purchase of treasury stock	0	0	(21)
Cash paid for tax withholding	(3)	(4)	(1)
Other	0	0	1
Net cash provided by (used in) financing activities	1,256	361	(115)
Increase (decrease) in cash and cash equivalents	15	8	(196)
Cash and cash equivalents at beginning of year	13	5	201
Cash and cash equivalents at end of year	$ 28	$ 13	$ 5

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