Condensed Consolidated Statement of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent [Abstract]
Foreign currency translation adjustments arising during period	$ (705)	$ (109)
Reclassification adjustments for (gain) loss on sale of an investment in a foreign entity recognized in Other income, net	2	(3)
Total Foreign currency translation adjustments	(707)	(106)
Statement of Comprehensive Income [Abstract]
Net income	1,498	1,306
Pension and post-retirement benefit plans
Pension and post-retirement benefit plans adjustments during the period	52	19
Amortization of actuarial loss, prior service cost and transition obligation	217	104
Total pension and post-retirement benefit plans, before tax	(269)	(123)
Tax expense	(97)	(40)
Pension and Other Postretirement Benefit Plans, Net of Tax	(172)	(83)
Unrealized gain on available-for-sale securities
Unrealized holding gain arising during period	86	32
Reclassification adjustments for gain included in Other income, net	28	24
Total unrealized gain on available for-sale securities, before tax	58	8
Tax expense	22	3
Total unrealized gain on available for-sale securities, net of tax	36	5
Change in unrealized cash flow hedging
Unrealized cash flow hedging loss arising during the period	(184)	(80)
Loss reclassified into Product Sales	(57)	(18)
Total unrealized loss on cash-flow hedging, before tax	(127)	(62)
Tax benefit	(36)	(12)
Total unrealized loss on cash-flow hedging, net of tax	(91)	(50)
Other comprehensive loss, net of tax	(590)	(68)
Comprehensive income	908	1,238
Comprehensive income attributable to noncontrolling interest	32	86
Comprehensive income attributable to common shareowners	$ 876	$ 1,152