Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income before non-controlling interests	$ 542	$ 320	$ 2,367	$ 1,667
Other comprehensive (loss) income, before tax:
Foreign currency translation (loss) gain adjustments	(346)	500	(413)	(200)
Gain (loss) related to pension/post-retirement plans	204	(73)	234	136
Other comprehensive (loss) income, before tax	(142)	427	(179)	(64)
Income tax expense (benefit) on other comprehensive income	50	(7)	56	29
Other comprehensive (loss) income, net of tax	(192)	434	(235)	(93)
Comprehensive income	350	754	2,132	1,574
Less: comprehensive income attributable to non-controlling interest	5	4	27	25
Comprehensive income attributable to the Company	$ 345	$ 750	$ 2,105	$ 1,549