Condensed Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income from continuing operations	$ 1,261	$ 1,435
Net income from discontinued operations	11	63
Net Income	1,272	1,498
Foreign currency translation adjustments
Foreign currency translation adjustments arising during period	39	(705)
Reclassification adjustments for loss (gain) on sale of an investment in a foreign entity recognized in Other income, net	(1)	2
Foreign Currency Transaction and Translation Adjustment, before Tax, Portion Attributable to Parent	40	(707)
Pension and post-retirement benefit plans
Pension and post-retirement benefit plans adjustments during the period	(25)	52
Amortization of actuarial loss, prior service cost and transition obligation	126	217
Total pension and post-retirement benefit plans, before tax	(101)	(269)
Tax expense	(38)	(97)
Pension and Other Postretirement Benefit Plans, Net of Tax	(63)	(172)
Unrealized (loss) gain on available-for-sale securities
Unrealized holding gain arising during period	69	86
Reclassification adjustments for gain included in Other income, net	27	28
Total unrealized gain on available for-sale securities, before tax	42	58
Tax expense	19	22
Total unrealized gain on available for-sale securities, net of tax	23	36
Change in unrealized cash flow hedging
Unrealized cash flow hedging gain (loss) arising during the period	159	(184)
Loss reclassified into Product Sales	(62)	(57)
Total unrealized loss on cash-flow hedging, before tax	221	(127)
Tax (expense) benefit	59	(36)
Total unrealized gain (loss) on cash-flow hedging, net of tax	162	(91)
Other comprehensive income (loss), net of tax	288	(590)
Comprehensive income	1,560	908
Comprehensive income attributable to noncontrolling interest	94	32
Comprehensive income attributable to common shareowners	$ 1,466	$ 876