SHAREHOLDERS' EQUITY - Reclassifications Out of Accumulated Other Comprehensive Income (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Sales and redemptions	$ 72		$ 288		$ 277		$ 358
Other-than-temporary impairment losses realized	(10)	[1]	(97)	[1]	(65)	[1]	(643)	[1]
Derivative and other gains (losses)	(40)		95		167		108
Acquisition and operating expenses	(1,332)		(1,435)		(3,933)		(4,225)
Total before tax	1,069		1,480		3,788		3,423
Tax (expense) or benefit	(367)		(463)		(1,305)		(1,138)
Net of tax	702		1,017		2,483		2,285
The expected U.S. tax rate	35.00%				35.00%
Reclassification Out Of Accumulated Other Comprehensive Income
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Net of tax	38	[2]			130	[2]
Reclassification Out Of Accumulated Other Comprehensive Income | Unrealized foreign currency translation gains (losses)
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Sales and redemptions	(32)	[2]			(8)	[2]
Tax (expense) or benefit	11	[2],[3]			3	[2],[3]
Net of tax	(21)	[2]			(5)	[2]
Reclassification Out Of Accumulated Other Comprehensive Income | Unrealized gains (losses) on investment securities
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Sales and redemptions	104	[2]			285	[2]
Other-than-temporary impairment losses realized	(10)	[2]			(65)	[2]
Total before tax	94	[2]			220	[2]
Tax (expense) or benefit	(33)	[2],[3]			(77)	[2],[3]
Net of tax	61	[2]			143	[2]
Reclassification Out Of Accumulated Other Comprehensive Income | Pension liability adjustment
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Acquisition and operating expenses	(4)	[2],[4]			(13)	[2],[4]
Tax (expense) or benefit	2	[2],[3]			5	[2],[3]
Net of tax	$ (2)	[2]			$ (8)	[2]

[1] Includes $0 and $70 for the three-month periods and $0 and $365 for the nine-month periods ended September 30, 2013 and 2012, respectively, for credit-related impairments; $0 and $27 for the three-month periods and $1 and $27 for the nine-month periods ended September 30, 2013 and 2012, respectively, for impairments due to severity and duration of decline in fair value; and $10 and $0 for the three-month periods and $64 and $251 for the nine-month periods ended September 30, 2013 and 2012, respectively, from change in intent to sell securities

[2] Amounts in parentheses indicate debits.

[3] Based on 35% tax rate

[4] These accumulated other comprehensive income components are included in the computation of net periodic pension cost (see Note 10 for additional details).