Condensed Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Net income from continuing operations	$ 1,534	$ 1,526	$ 4,312	$ 4,533
Income (loss) from discontinued operations	37	(65)	1	78
Net Income	1,571	1,461	4,313	4,611
Foreign currency translation adjustments
Foreign currency translation adjustments arising during period	(359)	(936)	(596)	(1,202)
Less: Reclassification adjustments for loss on sale of an investment in a foreign entity recognized in Other income, net	1	0	0	1
Foreign currency translation adjustments	(360)	(936)	(596)	(1,203)
Pension and post-retirement benefit plans
Pension and post-retirement benefit plans adjustments during the period	7	112	(30)	157
Amortization of actuarial loss, prior service cost and transition obligation	127	216	381	651
Total pension and post-retirement benefit plans, before tax	(134)	(328)	(351)	(808)
Tax expense	(50)	(120)	(131)	(296)
Pension and Other Postretirement Benefit Plans, Net of Tax	(84)	(208)	(220)	(512)
Unrealized gain (loss) on available-for-sale securities
Unrealized holding gain (loss) arising during period	49	(69)	139	18
Reclassification adjustments for gain included in Other income, net	20	2	72	56
Total unrealized gain (loss) on available for-sale securities, before tax	29	(71)	67	(38)
Tax (expense) benefit	11	(28)	25	(17)
Total unrealized gain (loss) on available for-sale securities, net of tax	18	(43)	42	(21)
Change in unrealized cash flow hedging
Unrealized cash flow hedging (loss) gain arising during the period	(7)	(152)	188	(274)
Loss reclassified into Product Sales	(32)	(64)	(139)	(164)
Total unrealized loss (gain) on cash-flow hedging, before tax	25	(88)	327	(110)
Tax benefit (expense)	7	(25)	87	(32)
Total unrealized gain (loss) on cash-flow hedging, net of tax	18	(63)	240	(78)
Other comprehensive loss, net of tax	(240)	(834)	(94)	(790)
Comprehensive income	1,331	627	4,219	3,821
Less: Comprehensive income attributable to noncontrolling interest	96	76	287	218
Comprehensive income attributable to common shareowners	$ 1,235	$ 551	$ 3,932	$ 3,603