CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME
Net income	$ 1,672	$ 2,694	$ 5,761	$ 6,777
Other comprehensive income/(loss), before tax:
Foreign currency translation adjustments	(509)	(22)	(333)	(535)
Net changes related to available-for-sale securities:
Unrealized gains/(losses) arising during the period	3	0	1	(2)
Total net changes related to available-for-sale securities	3	0	1	(2)
Unrealized gains/(losses) on cash flow hedges:
Unrealized gains/(losses) arising during the period	(439)	(46)	(798)	(134)
Reclassification of (gains)/losses to net income	488	28	418	408
Total unrealized gains/(losses) on cash flow hedges	49	(18)	(380)	274
Retirement-related benefit plans:
Prior service costs/(credits)		0		(1)
Net (losses)/gains arising during the period	0	(1)	113	83
Curtailments and settlements	3	2	7	7
Amortization of prior service (credits)/costs	(3)	(18)	(9)	(55)
Amortization of net (gains)/losses	461	737	1,385	2,231
Total retirement-related benefit plans	461	719	1,496	2,264
Other comprehensive income/(loss), before tax	4	678	784	2,001
Income tax (expense)/benefit related to items of other comprehensive income	(249)	(209)	(380)	(807)
Other comprehensive income/(loss), net of tax	(245)	470	404	1,194
Total comprehensive income/(loss)	$ 1,427	$ 3,164	$ 6,165	$ 7,970