CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME
Net income	$ 3,032	$ 3,066	[1]
Other comprehensive income/(loss), before tax:
Foreign currency translation adjustments	(405)	387
Net changes related to available-for-sale securities:
Unrealized gains/(losses) arising during the period	(3)	6
Reclassification of (gains)/losses to net income	1	(14)
Subsequent changes in previously impaired securities arising during the period	1	18
Total net changes related to available-for-sale securities	(1)	10
Unrealized gains/(losses) on cash flow hedges:
Unrealized gains/(losses) arising during the period	360	51
Reclassification of (gains)/losses to net income	(56)	(24)
Total unrealized gains/(losses) on cash flow hedges	305	27
Retirement-related benefit plans:
Prior service costs/(credits)	33	0
Net (losses)/gains arising during the period	(15)	(6)
Amortization of prior service (credits)/cost	(30)	(37)
Amortization of net (gains)/losses	886	619
Total retirement-related benefit plans	875	576
Other comprehensive income/(loss), before tax	773	1,000
Income tax (expense)/benefit related to items of other comprehensive income	(480)	(229)
Other comprehensive income/(loss)	293	770	[1]
Total comprehensive income/(loss)	$ 3,325	$ 3,837	[1]

[1] Amounts may not add due to rounding.