CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash Flows From Operating Activities:
Net income (loss)	$ (2,675)	$ 80
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation, depletion and amortization	275	96
Amortization of debt issuance costs	2	2
Loss on derivatives, unsettled	3,232	169
Stock-based compensation	1	0
Loss on early extinguishment of debt	2	0
Other	(1)	0
Change in assets and liabilities, excluding impact from acquisitions:
Accounts receivable	89	(33)
Accounts payable	126	33
Taxes payable	(13)	(8)
Interest payable	(16)	(2)
Inventories	4	9
Other assets and liabilities	(54)	1
Net cash provided by operating activities	972	347
Cash Flows From Investing Activities:
Capital investments	(500)	(227)
Proceeds from sale of property and equipment	0	1
Other	0	(1)
Net cash used in investing activities	(500)	(227)
Cash Flows From Financing Activities:
Payments on current portion of long-term debt	(202)	0
Payments on long-term debt	(21)	0
Payments on revolving credit facility	(2,803)	(923)
Borrowings under revolving credit facility	2,517	790
Change in bank drafts outstanding	34	7
Cash paid for tax withholding	(4)	(3)
Net cash used in financing activities	(479)	(129)
Decrease in cash and cash equivalents	(7)	(9)
Cash and cash equivalents at beginning of year	28	13
Cash and cash equivalents at end of period	$ 21	$ 4