NONCONTROLLING INTERESTS (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
A rollforward of non-controlling interests
Balance, beginning of year	$ 667
Contributions from noncontrolling interests	8
Other comprehensive income (loss), net of tax:
Total other comprehensive income (loss), net of tax	11,839		12,574
Total comprehensive income (loss) attributable to noncontrolling interests	25	246
Balance, end of period	663
Redeemable Noncontrolling interests
A rollforward of non-controlling interests
Balance, beginning of year	334	8,523
Repayment to Department of the Treasury		(8,635)
Contributions from noncontrolling interests	22	18
Distributions from noncontrolling interests	(17)
Consolidation (deconsolidation)	32	(5)
Comprehensive income (loss):
Net income (loss)	15	218
Other comprehensive income (loss), net of tax:
Unrealized gains (losses) on investments	(1)	2
Foreign currency translation adjustments	2
Total other comprehensive income (loss), net of tax	1	2
Total comprehensive income (loss) attributable to noncontrolling interests	16	220
Other	1
Balance, end of period	388	121
Redeemable Noncontrolling interests | Department of the Treasury.
A rollforward of non-controlling interests
Balance, beginning of year		8,427
Repayment to Department of the Treasury		(8,635)
Comprehensive income (loss):
Net income (loss)		208
Other comprehensive income (loss), net of tax:
Total comprehensive income (loss) attributable to noncontrolling interests		208
Redeemable Noncontrolling interests | Other Minority Interests Holder
A rollforward of non-controlling interests
Balance, beginning of year	334	96
Contributions from noncontrolling interests	22	18
Distributions from noncontrolling interests	(17)
Consolidation (deconsolidation)	32	(5)
Comprehensive income (loss):
Net income (loss)	15	10
Other comprehensive income (loss), net of tax:
Unrealized gains (losses) on investments	(1)	2
Foreign currency translation adjustments	2
Total other comprehensive income (loss), net of tax	1	2
Total comprehensive income (loss) attributable to noncontrolling interests	16	12
Other	1
Balance, end of period	388	121
Non-redeemable Noncontrolling interests
A rollforward of non-controlling interests
Balance, beginning of year	667	855
Contributions from noncontrolling interests	8	42
Distributions from noncontrolling interests	(19)	(14)
Comprehensive income (loss):
Net income (loss)	10	23
Other comprehensive income (loss), net of tax:
Unrealized gains (losses) on investments		2
Foreign currency translation adjustments	(1)	1
Total other comprehensive income (loss), net of tax	(1)	3
Total comprehensive income (loss) attributable to noncontrolling interests	9	26
Other	(2)	(16)
Balance, end of period	$ 663	$ 893