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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Cash flows from operating activities:    
Net income $ 463 $ 581
Adjustments to reconcile net income to net cash flows from operating activities:    
Depreciation and amortization 283 269
Gain on equity securities (52) (392)
Provision (benefit) for deferred income taxes (24) 58
Stock-based compensation cost 51 49
Inventory impairment 0 18
Changes in operating assets and liabilities:    
Current receivables 199 (332)
Inventories (265) (265)
Accounts payable 173 43
Progress collections and deferred income 170 639
Contract and other deferred assets (68) (148)
Other operating items, net (146) (59)
Net cash flows from operating activities 784 461
Cash flows from investing activities:    
Expenditures for capital assets (333) (310)
Proceeds from disposal of assets 51 46
Other investing items, net 13 35
Net cash flows used in investing activities (269) (229)
Cash flows from financing activities:    
Dividends paid (210) (192)
Repurchase of Class A common stock (158) 0
Other financing items, net (59) (58)
Net cash flows used in financing activities (427) (250)
Effect of currency exchange rate changes on cash and cash equivalents (17) (55)
Increase (decrease) in cash and cash equivalents 71 (73)
Cash and cash equivalents, beginning of period 2,646 2,488
Cash and cash equivalents, end of period 2,717 2,415
Supplemental cash flows disclosures:    
Income taxes paid, net of refunds 108 163
Interest paid $ 48 $ 50