Statement of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Comprehensive Income [Abstract]
Net Income	$ 775	$ 319	$ 1,446	$ 885
Other comprehensive income (loss)
Foreign currency translation adjustments, net of tax	37	64	30	(223)
Pension and other postretirement benefit adjustments, net of tax	11	10	22	19
Other comprehensive income (loss)	48	74	52	(204)
Comprehensive Income	$ 823	$ 393	$ 1,498	$ 681