Condensed Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income from continuing operations	$ 1,468	$ 1,253
Income (loss) from discontinued operations	0	11
Net Income	1,468	1,264
Foreign currency translation adjustments
Foreign currency translation adjustments arising during period	146	39
Less: Reclassification adjustments for loss on sale of an investment in a foreign entity recognized in Other income, net	0	(1)
Foreign currency translation adjustments	146	40
Pension and post-retirement benefit plans
Pension and post-retirement benefit plans adjustments during the period	1	(25)
Amortization of actuarial loss, prior service cost and transition obligation	131	126
Total pension and post-retirement benefit plans, before tax	(132)	(101)
Tax expense	(49)	(38)
Pension and Other Postretirement Benefit Plans, Net of Tax	(83)	(63)
Unrealized gain (loss) on available-for-sale securities
Unrealized holding gain (loss) arising during period	(32)	69
Reclassification adjustments for gain included in Other income, net	383	27
Total unrealized gain (loss) on available for-sale securities, before tax	(415)	42
Tax benefit (expense)	(158)	19
Total unrealized gain (loss) on available for-sale securities, net of tax	(257)	23
Change in unrealized cash flow hedging
Unrealized cash flow hedging (loss) gain arising during the period	64	159
Loss reclassified into Product Sales	(5)	(62)
Total unrealized loss (gain) on cash-flow hedging, before tax	69	221
Tax expense	15	59
Total unrealized gain (loss) on cash-flow hedging, net of tax	54	162
Other comprehensive loss, net of tax	26	288
Comprehensive income	1,494	1,552
Less: Comprehensive income attributable to noncontrolling interest	107	94
Comprehensive income attributable to common shareowners	$ 1,387	$ 1,458