Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 1,103	$ (20)
Other comprehensive income (loss), net of tax:
Unrecognized amounts on retirement benefits, net of tax	(4)	15
Foreign currency translation adjustment	99	(110)
Unrealized gains (losses) on cash flow hedges, net of tax	(55)	77
Total other comprehensive income (loss), net of tax	40	(18)
Comprehensive income (loss)	1,143	(38)
Comprehensive income attributable to noncontrolling interests	114	109
Comprehensive income (loss) attributable to parent	$ 1,029	$ (147)