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Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Cash flows from operating activities:    
Net income $ 4,220 $ 2,793
Depreciation, amortization and other 1,796 1,669
Deferred income taxes (203) (514)
Adjustments for equity method investments (3) 497
Loss on divestiture 0 560
(Gains) losses on equity securities (1,169) 322
Other items, net 171 114
Changes in operating assets and liabilities, net of acquisitions:    
Trade receivables, net (240) (504)
Inventories (28) (410)
Other assets (69) 198
Accounts payable (371) (98)
Accrued income taxes, net 471 (685)
Long-term tax liabilities 196 108
Other liabilities 402 44
Net cash provided by operating activities 5,173 4,094
Cash flows from investing activities:    
Purchases of marketable securities 0 (1,976)
Proceeds from sales of marketable securities 1,125 0
Proceeds from maturities of marketable securities 550 47
Purchases of property, plant and equipment (615) (436)
Other 87 61
Net cash provided by (used in) investing activities 1,147 (2,304)
Cash flows from financing activities:    
Net proceeds from issuance of debt 23,780 3,954
Extinguishment of debt (420) 0
Repayment of debt (704) 0
Repurchases of common stock 0 (6,360)
Dividends paid (2,276) (2,118)
Other (81) (52)
Net cash provided by (used in) financing activities 20,299 (4,576)
Increase (decrease) in cash and cash equivalents 26,619 (2,786)
Cash and cash equivalents at beginning of period 7,629 7,989
Cash and cash equivalents at end of period $ 34,248 $ 5,203