Consolidated Statements 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 (Loss) Attributable to Parent	$ 5,708	$ 4,262	$ 15,592	$ 15,248
Comprehensive income	7,862	4,588	19,074	16,211
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment Including OTTI, Net of Tax	2,083	469	3,332	1,239
Accumulated Translation Adjustment [Member]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	13	(237)	(49)	(210)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	23	59	61	(152)
Accumulated Defined Benefit Plans Adjustment [Member]
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	(35)	(35)	(138)	(86)
Accumulated other comprehensive income/(loss)
Other comprehensive income/(loss), after-tax	$ 2,154	$ 326	$ 3,482	$ 963