CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME
Net income	$ 1,698	$ 1,672	$ 4,234	$ 5,761
Other comprehensive income/(loss), before tax:
Foreign currency translation adjustments	(439)	(509)	(1,354)	(333)
Net changes related to available-for-sale securities:
Unrealized gains/(losses) arising during the period	(1)	3	0	1
Total net changes related to available-for-sale securities	(1)	3	0	1
Unrealized gains/(losses) on cash flow hedges:
Unrealized gains/(losses) arising during the period	(32)	(439)	(249)	(798)
Reclassification of (gains)/losses to net income	(69)	488	(37)	418
Total unrealized gains/(losses) on cash flow hedges	(101)	49	(285)	(380)
Retirement-related benefit plans:
Prior service costs/(credits)	(1)		(5)
Net (losses)/gains arising during the period	0	0	65	113
Curtailments and settlements	21	3	42	7
Amortization of prior service (credits)/costs	0	(3)	1	(9)
Amortization of net (gains)/losses	586	461	1,722	1,385
Total retirement-related benefit plans	607	461	1,826	1,496
Other comprehensive income/(loss), before tax	66	4	187	784
Income tax (expense)/benefit related to items of other comprehensive income	106	(249)	(175)	(380)
Other comprehensive income/(loss), net of tax	172	(245)	12	404
Total comprehensive income/(loss)	$ 1,870	$ 1,427	$ 4,247	$ 6,165