CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011		Sep. 30, 2012		Sep. 30, 2011
Net income	$ 3,824	[1]	$ 3,839		$ 10,771		$ 10,365
Other comprehensive income/(loss), before tax
Foreign currency translation adjustments	501		(1,500)		164		(674)
Net changes related to available-for-sale securities:
Unrealized gains/(losses) arising during the period	11		(6)		13		(20)
Reclassification of (gains)/losses to net income	(27)		0		(43)		(231)
Subsequent changes in previously impaired securities arising during the period	(7)		(8)		20		3
Total net changes related to available-for-sale securities	(24)	[1]	(14)		(10)		(248)
Unrealized gains/(losses) on cash flow hedges:
Unrealized gains/(losses) arising during the period	(54)		295		65		(159)
Reclassification of (gains)/losses to net income	(112)		167		(246)		494
Total unrealized gains/(losses) on cash flow hedges	(165)	[1]	461	[1]	(181)		335
Retirement-related benefit plans:
Prior service costs/(credits)	0		0		0		(32)
Net (losses)/gains arising during the period	1		0		66		605
Curtailments and settlements	(2)		0		(1)		13
Amortization of prior service (credits)/costs	(37)		(40)		(112)		(117)
Amortization of net (gains)/losses	613		463		1,846		1,395
Total retirement-related benefit plans	575		423		1,799		1,864
Other comprehensive income/(loss), before tax	887		(630)		1,771	[1]	1,276	[1]
Income tax (expense)/benefit related to items of other comprehensive income	(109)		(361)		(606)		(632)
Other comprehensive income/(loss)	778	[1]	(989)	[1]	1,165		645	[1]
Total comprehensive income/(loss)	$ 4,601	[1]	$ 2,850		$ 11,936		$ 11,010

[1] Amounts may not add due to rounding.