Statement of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 2,521	$ 2,563	$ 1,687
Other Comprehensive Income (Loss):
Foreign currency translation adjustments, net of tax	(2)	(328)	406
Pension and other postretirement benefit adjustments, net of tax	(26)	(17)	114
Comprehensive Income	$ 2,493	$ 2,218	$ 2,207