CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME
Net income	$ 1,750	$ 2,014
Other comprehensive income/(loss), before tax:
Foreign currency translation adjustments	161	239
Net changes related to available-for-sale securities:
Unrealized gains/(losses) arising during the period	(1)	(36)
Reclassification of (gains)/losses to net income	1	37
Total net changes related to available-for-sale securities	0	1
Unrealized gains/(losses) on cash flow hedges:
Unrealized gains/(losses) arising during the period	(33)	(265)
Reclassification of (gains)/losses to net income	(98)	(91)
Total unrealized gains/(losses) on cash flow hedges	(130)	(356)
Retirement-related benefit plans:
Prior service costs/(credits)	0
Net (losses)/gains arising during the period	61	(147)
Curtailments and settlements	(1)	5
Amortization of prior service (credits)/costs	(21)	(25)
Amortization of net (gains)/losses	710	690
Total retirement-related benefit plans	748	522
Other comprehensive income/(loss), before tax	779	406
Income tax (expense)/benefit related to items of other comprehensive income	(92)	202
Other comprehensive income/(loss)	688	608
Total comprehensive income/(loss)	$ 2,438	$ 2,622