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Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Cash flows from operating activities:    
Net income $ 2,841 $ 1,476
Depreciation, amortization and other 900 841
Deferred income taxes (49) (251)
Adjustments for equity method investments (31) 305
(Gains) losses on equity securities (1,830) 211
Other items, net (13) 29
Changes in operating assets and liabilities, net of acquisitions:    
Trade receivables, net (144) (195)
Inventories (58) (230)
Other assets (139) (43)
Accounts payable (253) 42
Accrued income taxes, net 443 318
Long-term tax liabilities 107 57
Other liabilities (710) (396)
Net cash provided by operating activities 1,064 2,164
Cash flows from investing activities:    
Proceeds from sales of marketable securities 1,124 0
Proceeds from maturities of marketable securities 550 32
Purchases of property, plant and equipment (344) (190)
Other 28 47
Net cash provided by (used in) investing activities 1,358 (111)
Cash flows from financing activities:    
Net proceeds from issuance of debt 23,798 3,952
Extinguishment of debt (420) 0
Repayment of debt (704) 0
Repurchases of common stock 0 (6,360)
Dividends paid (1,137) (1,080)
Other (28) (26)
Net cash provided by (used in) financing activities 21,509 (3,514)
Increase (decrease) in cash and cash equivalents 23,931 (1,461)
Cash and cash equivalents at beginning of period 7,629 7,989
Cash and cash equivalents at end of period $ 31,560 $ 6,528