CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME
Net income	$ 2,498	$ 2,404	$ 4,089	$ 4,083
Other comprehensive income/(loss), before tax:
Foreign currency translation adjustments	5	(347)	176	(513)
Net changes related to available-for-sale securities:
Unrealized gains/(losses) arising during the period	(2)	0	(3)	(2)
Reclassification of (gains)/losses to net income				0
Total net changes related to available-for-sale securities	(2)	0	(3)	(2)
Unrealized gains/(losses) on cash flow hedges:
Unrealized gains/(losses) arising during the period	(6)	(149)	(359)	(89)
Reclassification of (gains)/losses to net income	(168)	434	(70)	380
Total unrealized gains/(losses) on cash flow hedges	(175)	285	(429)	292
Retirement-related benefit plans:
Prior service costs/(credits)		0		(1)
Net (losses)/gains arising during the period	116	82	113	84
Curtailments and settlements	3	6	4	6
Amortization of prior service (credits)/costs	(3)	(19)	(6)	(37)
Amortization of net (gains)/losses	460	741	924	1,494
Total retirement-related benefit plans	576	810	1,035	1,545
Other comprehensive income/(loss), before tax	405	748	779	1,322
Income tax (expense)/benefit related to items of other comprehensive income	(64)	(455)	(131)	(598)
Other comprehensive income/(loss), net of tax	340	294	649	724
Total comprehensive income/(loss)	$ 2,839	$ 2,697	$ 4,738	$ 4,807