TOTAL EQUITY (Details 3) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Unrealized Appreciation (Depreciation) of Fixed Maturity Investments on Which Other-Than-Temporary Credit Impairments Were Taken
Unrealized change arising during period	$ 474	$ 1,001
Less: Reclassification adjustments included in net income	49	(2)
Total, Other-Than-Temporary Impairments in AOCI	425	1,003
Less: Income tax expense (benefit)	143	390
Total other comprehensive income (loss), net of income tax expense (benefit)	282	613
Unrealized Appreciation (Depreciation) of All Other Investments
Unrealized change arising during period	(1,278)	2,323
Less: Reclassification adjustments included in net income	227	960
Total other comprehensive income (loss), before income tax expense (benefit)	(1,505)	1,363
Less: Income tax expense (benefit)	(717)	382
Total other comprehensive income (loss), net of income tax expense (benefit)	(788)	981
Foreign Currency Translation Adjustments
Unrealized change arising during period	(293)	87
Total other comprehensive income (loss), before income tax expense (benefit)	(293)	87
Less: Income tax expense (benefit)	(20)	(4)
Total other comprehensive income (loss), net of income tax expense (benefit)	(273)	91
Net Derivative Gains (Losses) Arising from Cash Flow Hedging Activities
Unrealized change arising during period		(1)
Less: Reclassification adjustments included in net income		(5)
Total other comprehensive income (loss), before income tax expense (benefit)		4
Less: Income tax expense (benefit)		(18)
Total other comprehensive income (loss), net of income tax expense (benefit)		22
Change in Retirement Plan Liabilities Adjustment
Unrealized change arising during period	18
Less: Reclassification adjustments included in net income	(25)	(29)
Total other comprehensive income (loss), before income tax expense (benefit)	43	29
Less: Income tax expense (benefit)	(1)	11
Total other comprehensive income (loss), net of income tax expense (benefit)	44	18
Other Comprehensive Income (Loss) Reclassification Adjustments
Unrealized change arising during period	(1,079)	3,410
Less: Reclassification adjustments included in net income	251	924
Total other comprehensive income (loss), before income tax expense (benefit)	(1,330)	2,486
Less: Income tax expense (benefit)	(595)	761
Other comprehensive income (loss)	$ (735)	$ 1,725