TOTAL EQUITY (Details 4) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Reclassification of significant items out of Accumulated Other Comprehensive Income
Other realized capital gains	$ (341)	$ (202)
Amortization of deferred acquisition costs	1,286	1,347
Policyholder benefits and claims incurred	6,728	7,119
Amount Reclassified from Accumulated Other Comprehensive Income
Reclassification of significant items out of Accumulated Other Comprehensive Income
Total reclassifications for the period	251
Unrealized appreciation (depreciation) of fixed maturity investments on which other-than-temporary credit impairments were recognized | Amount Reclassified from Accumulated Other Comprehensive Income
Reclassification of significant items out of Accumulated Other Comprehensive Income
Other realized capital gains	49
Unrealized appreciation (depreciation) of all other investments | Amount Reclassified from Accumulated Other Comprehensive Income
Reclassification of significant items out of Accumulated Other Comprehensive Income
Other realized capital gains	286
Amortization of deferred acquisition costs	43
Policyholder benefits and claims incurred	(102)
Total reclassifications for the period	227
Change in retirement plan liabilities adjustment | Amount Reclassified from Accumulated Other Comprehensive Income
Reclassification of significant items out of Accumulated Other Comprehensive Income
Prior-service costs	12
Actuarial gains/(losses)	(37)
Total reclassifications for the period	$ (25)