CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash Flows From Operating Activities:
Net loss	$ (2,386)	$ (3,020)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation, depletion and amortization	334	267
Amortization of debt issuance costs	6	6
Impairments	6	2,495
Deferred income taxes	0	408
Loss on derivatives, unsettled	2,952	272
Stock-based compensation	2	2
Loss (gain) on early extinguishment of debt	59	(35)
Other	3	3
Change in assets and liabilities, excluding impact from acquisitions:
Accounts receivable	(147)	106
Accounts payable	58	(129)
Taxes payable	(10)	(12)
Interest payable	(13)	3
Inventories	(2)	3
Other assets and liabilities	(32)	38
Net cash provided by operating activities	830	407
Cash Flows From Investing Activities:
Capital investments	(747)	(700)
Proceeds from sale of property and equipment	4	2
Cash acquired in Indigo Acquisition	55	0
Cash paid in Indigo Acquisition	(373)	0
Other	(1)	0
Net cash used in investing activities	(1,062)	(698)
Cash Flows From Financing Activities:
Payments on long-term debt	(844)	(72)
Payments on revolving credit facility	(3,401)	(1,449)
Borrowings under revolving credit facility	3,366	1,415
Change in bank drafts outstanding	33	(9)
Repayment of Indigo revolving credit facility	(95)	0
Proceeds from issuance of long-term debt	1,200	350
Debt issuance/amendment costs	(25)	(5)
Proceeds from issuance of common stock, net	0	152
Cash paid for tax withholding	(3)	(1)
Net cash provided by financing activities	231	381
Increase (decrease) in cash and cash equivalents	(1)	90
Cash and cash equivalents at beginning of year	13	5
Cash and cash equivalents at end of period	$ 12	$ 95