SHAREHOLDERS' EQUITY - Reclassifications Out of Accumulated Other Comprehensive Income (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Sales and redemptions	$ 41		$ 119
Other-than-temporary impairment losses realized	(3)	[1]	(55)	[1]
Acquisition and operating expenses	(1,316)		(1,326)
Derivative and other gains (losses)	(83)		87
Total before tax	1,104		1,361
Income tax (expense) or benefit	(372)		(469)
Net of tax	732		892
The expected U.S. tax rate	35.00%		35.00%
Reclassification Out Of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net of tax	24		38
Reclassification Out Of Accumulated Other Comprehensive Income | Unrealized foreign currency translation gains (losses)
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Sales and redemptions	36		10
Income tax (expense) or benefit	(13)	[2]	(3)	[2]
Net of tax	23		7
Reclassification Out Of Accumulated Other Comprehensive Income | Unrealized gains (losses) on investment securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Sales and redemptions	5		109
Other-than-temporary impairment losses realized	(3)		(55)
Total before tax	2		54
Income tax (expense) or benefit	(1)	[2]	(19)	[2]
Net of tax	1		35
Reclassification Out Of Accumulated Other Comprehensive Income | Unrealized gains (losses) on derivatives | Foreign currency swaps
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Derivative and other gains (losses)			(1)
Income tax (expense) or benefit			0	[2]
Net of tax			(1)
Reclassification Out Of Accumulated Other Comprehensive Income | Pension liability adjustment
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Acquisition and operating expenses			(5)	[3]
Income tax (expense) or benefit	0	[2]	2	[2]
Net of tax	0		(3)
Actuarial gains (losses) | Reclassification Out Of Accumulated Other Comprehensive Income | Pension liability adjustment
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Acquisition and operating expenses	(4)	[3]
Prior service cost | Reclassification Out Of Accumulated Other Comprehensive Income | Pension liability adjustment
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Acquisition and operating expenses	$ 4	[3]

[1] Includes $0 and $1 for the three-month periods ended March 31, 2014 and 2013, respectively, for impairments due to severity and duration of decline in fair value and $3 and $54 for the three-month periods ended March 31, 2014 and 2013, respectively, from change in intent to sell securities

[2] Based on 35% tax rate

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