Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net Income (Loss) Attributable to Parent	$ 4,960	$ 5,431	$ 9,884	$ 10,986
Comprehensive income	4,587	6,357	11,212	11,623
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	(325)	1,021	1,249	770
Accumulated Translation Adjustment [Member]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	(189)	3	(62)	27
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	73	(132)	38	(211)
Accumulated Defined Benefit Plans Adjustment [Member]
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	68	34	103	51
Accumulated other comprehensive income/(loss)
Other comprehensive income/(loss), after-tax	$ (373)	$ 926	$ 1,328	$ 637