DERIVATIVE INSTRUMENTS - Additional Information (Detail) ¥ in Billions	3 Months Ended			9 Months Ended
	Sep. 30, 2016 USD ($) counterparties currency		Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) counterparties currency		Sep. 30, 2015 USD ($)	Sep. 30, 2016 JPY (¥) counterparties currency	Dec. 31, 2015 USD ($)
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Derivative, collateral, right to reclaim cash	$ 259,000,000	[1]		$ 259,000,000	[1]			$ 3,000,000
Hedging activity, weighted-average period (in years)				9 years
Number of currencies related to foreign currency swaps | currency	1			1			1
Number of counterparties | counterparties	18			18			18
Number of counterparties that comprise majority of aggregate notional amount of swaps | counterparties	5			5			5
Percentage of notional amount of swaps from certain number of counterparties	61.00%			61.00%			61.00%
Collateral Already Posted, Aggregate Fair Value	$ 259,000,000			$ 259,000,000				20,000,000
Derivative, collateral, right to reclaim securities								17,000,000
Derivative, Net Liability Position, Aggregate Fair Value	227,000,000			227,000,000				26,000,000
Collateral obtained from third parties	1,277,000,000			1,277,000,000				412,000,000
Notional Amount of Derivatives	39,238,000,000			39,238,000,000				22,127,000,000
Foreign currency forwards
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Derivative, collateral, right to reclaim cash	37,000,000			37,000,000
Non-qualifying strategies
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Notional Amount of Derivatives	20,351,000,000			20,351,000,000				6,693,000,000
Derivative, Gain (Loss) on Derivative, Net	95,000,000		$ 18,000,000	22,000,000		$ 21,000,000
Non-qualifying strategies | Foreign currency forwards
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Notional Amount of Derivatives	13,565,000,000			13,565,000,000				11,000,000
Derivative, Gain (Loss) on Derivative, Net	144,000,000		17,000,000	165,000,000		16,000,000
Net investment hedge
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	0		$ 0	0		$ 0
Notional Amount of Derivatives	1,118,000,000			1,118,000,000				1,029,000,000
Net investment hedge | Foreign currency forwards
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Notional Amount of Derivatives	292,000,000			292,000,000				763,000,000
Cash flow hedges
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Notional Amount of Derivatives	75,000,000			75,000,000				$ 75,000,000
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	1,000,000			1,000,000
3.625% senior notes due November 2024
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Debt instrument, principal amount	750,000,000			750,000,000
3.25% senior notes due March 2025
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Debt instrument, principal amount	450,000,000			450,000,000
3.625% senior notes due June 2023
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Debt instrument, principal amount	700,000,000			700,000,000
2.65% senior notes due February 2017
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Debt instrument, principal amount	400,000,000			400,000,000
2.40% senior notes due March 2020
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Debt instrument, principal amount	550,000,000			550,000,000
4.00% senior notes due February 2022
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Debt instrument, principal amount	350,000,000			350,000,000
5.50% subordinated notes due September 2052
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Debt instrument, principal amount	500,000,000			500,000,000
February twenty sixteen profit repatriation | Foreign currency forwards
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Notional Amount of Derivatives | ¥							¥ 25.0
July twenty sixteen profit repatriation | Foreign currency forwards and options
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Notional Amount of Derivatives | ¥							51.1
September twenty sixteen profit repatriation | Foreign currency forwards and options
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Notional Amount of Derivatives | ¥							14.7
Future profit repatriation | Foreign currency forwards and options
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Notional Amount of Derivatives | ¥							¥ 113.0
Commercial mortgage loans | Foreign currency forwards
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Notional Amount of Derivatives	$ 348,000,000			$ 348,000,000

[1] Consists entirely of cash.