Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 3,017	$ 2,383	$ 2,997	$ 2,493
Other comprehensive (loss) income, net of tax:
Unrecognized amounts on retirement benefits, net of tax	25	15	40	22
Foreign currency translation adjustment	(481)	68	(591)	159
Unrealized gains (losses) on cash flow hedges, net of tax	26	1	103	15
Total other comprehensive (loss) income, net of tax	(430)	84	(448)	196
Comprehensive income	2,587	2,467	2,549	2,689
Comprehensive income attributable to noncontrolling interests	120	106	229	212
Comprehensive income (loss) attributable to parent	$ 2,467	$ 2,361	$ 2,320	$ 2,477