Statement of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Statement of Comprehensive Income [Abstract]
Net Income	$ 525	$ 480	$ 993	$ 938
Other Comprehensive Income (Loss):
Foreign currency translation adjustments, net of tax	(144)	169	20	(408)
Pension and other postretirement benefit adjustments, net of tax	6	11	14	20
Comprehensive Income (Loss)	$ 387	$ 660	$ 1,027	$ 550