Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash Flows from Operating Activities
Net Income	$ 390	$ 677
Items Not Requiring (Providing) Cash
Depreciation, Depletion and Amortization	847	900
Impairments	55	44
Stock-Based Compensation Expenses	35	35
Deferred Income Taxes	(465)	(36)
(Gains) Losses on Asset Dispositions, Net	(25)	6
Other, Net	6	7
Dry Hole Costs	3	11
Mark-to-Market Commodity Derivative Contracts
Total Losses	2,820	367
Net Cash Payments for Settlements of Financial Commodity Derivative Contracts	(296)	(30)
Other, Net	2	1
Changes in Components of Working Capital and Other Assets and Liabilities
Accounts Receivable	(878)	(308)
Inventories	(14)	64
Accounts Payable	130	172
Accrued Taxes Payable	613	243
Other Assets	(213)	(103)
Other Liabilities	(2,250)	(89)
Changes in Components of Working Capital Associated with Investing and Financing Activities	68	(91)
Net Cash Provided by Operating Activities	828	1,870
Investing Cash Flows
Additions to Oil and Gas Properties	(939)	(875)
Additions to Other Property, Plant and Equipment	(70)	(42)
Proceeds from Sales of Assets	121	5
Changes in Components of Working Capital Associated with Investing Activities	(68)	91
Net Cash Used in Investing Activities	(956)	(821)
Financing Cash Flows
Long-Term Debt Repayments	0	(750)
Dividends Paid	(1,023)	(219)
Treasury Stock Purchased	(43)	(10)
Proceeds from Stock Options Exercised and Employee Stock Purchase Plan	4	0
Repayment of Finance Lease Liabilities	(10)	(9)
Net Cash Used in Financing Activities	(1,072)	(988)
Effect of Exchange Rate Changes on Cash	0	(2)
Increase in Cash and Cash Equivalents	(1,200)	59
Cash and Cash Equivalents at Beginning Period	5,209	3,329
Cash and Cash Equivalents End of Period	$ 4,009	$ 3,388