Statement of Consolidated Comprehensive Income (unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 215	$ 187
Other comprehensive (loss) income, net of tax (I):
Change in unrecognized net actuarial loss and prior service cost/benefit related to pension and other postretirement benefits	37	40
Foreign currency translation adjustments	(65)	26
Net change in unrealized gains on available-for-sale securities	1	3
Net change in unrecognized gains/losses on cash flow hedges	(13)	7
Total Other comprehensive (loss) income, net of tax	(40)	76
Comprehensive income	$ 175	$ 263