Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Consolidated Statements of Comprehensive Income
Net income	$ 5,163	$ 5,885	$ 5,359
Other comprehensive income (loss)
Net unrealized securities (losses) gains, net of tax	(38)	33	(252)
Foreign currency translation adjustments, net of tax	(545)	(409)	(336)
Net unrealized pension and other postretirement benefit gains, net of tax	(32)	(117)	89
Other comprehensive loss	(615)	(493)	(499)
Comprehensive income	$ 4,548	$ 5,392	$ 4,860