Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities:
Net income	$ 1,222	$ 2,009
Adjustments to reconcile net income to net cash provided by operating activities:
Depletion, depreciation and amortization	664	614
Exploration expenses	0	5
Deferred income taxes	110	532
Gain on disposition of assets, net	(25)	(34)
Loss on early extinguishments of debt	0	47
Accretion of discount on asset retirement obligations	4	4
Interest expense	3	3
Derivative-related activity	36	67
Amortization of stock-based compensation	23	19
Investment valuation adjustments	53	(114)
Other	51	27
Changes in operating assets and liabilities:
Accounts receivable	461	(697)
Income taxes receivable	0	1
Inventories	(63)	(126)
Other assets	(63)	(1)
Accounts payable	(380)	178
Interest payable	(16)	(30)
Income taxes payable	225	17
Other liabilities	9	60
Net cash provided by operating activities	2,314	2,581
Cash flows from investing activities:
Proceeds from disposition of assets	4	210
Proceeds from short-term investments	0	75
Purchases of short-term investments, net	0	(640)
Additions to oil and gas properties	(1,180)	(914)
Additions to other assets and other property and equipment	(28)	(41)
Net cash used in investing activities	(1,204)	(1,310)
Cash flows from financing activities:
Borrowings under credit facility	350	0
Repayment of credit facility	(350)	0
Proceeds from issuance of senior notes, net of discount	1,099	0
Repayment of long-term debt	(230)	(1,292)
Proceeds from capped call on convertible notes	31	0
Payments of other liabilities	(4)	(121)
Payments of financing fees	(7)	0
Purchases of treasury stock	(520)	(276)
Exercise of long-term incentive plan stock options	0	1
Dividends paid	(1,319)	(1,073)
Net cash used in financing activities	(950)	(2,761)
Net increase (decrease) in cash, cash equivalents and restricted cash	160	(1,490)
Cash, cash equivalents and restricted cash, beginning of period	1,032	3,884
Cash, cash equivalents and restricted cash, end of period	$ 1,192	$ 2,394