DERIVATIVES AND HEDGE ACCOUNTING (Details - Hedge Accounting) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2018	Mar. 31, 2018	Jun. 30, 2017	Mar. 31, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Foreign currency translation gain (loss) adjustment related to net investment hedge relationships	$ 0	$ (120)	$ 0	$ (42)
Derivatives designated as hedging instruments | Interest rate contracts | Fair value hedging | Net realized capital gains (losses)
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in earnings on derivatives		(8)		(1)
Gain (loss) recognized in earnings on hedged items		9		1
Gain (loss) recognized in earnings for ineffective portion		1		0
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net		0		0
Gains/(Losses) Recognized in Earnings Including Gains/(Losses) Attributable to Other		0		0
Derivatives designated as hedging instruments | Interest rate contracts | Fair value hedging | Other Income
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in earnings on derivatives		0
Gain (loss) recognized in earnings on hedged items		0		0
Gain (loss) recognized in earnings for ineffective portion		0
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net		0
Gains/(Losses) Recognized in Earnings Including Gains/(Losses) Attributable to Other		0		0
Derivatives designated as hedging instruments | Interest rate contracts | Fair value hedging | Loss on extinguishment of debt
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in earnings on derivatives		0		0
Gain (loss) recognized in earnings on hedged items		0		0
Gain (loss) recognized in earnings for ineffective portion		0		0
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net		0		0
Gains/(Losses) Recognized in Earnings Including Gains/(Losses) Attributable to Other		0		0
Derivatives designated as hedging instruments | Foreign exchange contracts | Fair value hedging | Net realized capital gains (losses)
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in earnings on derivatives		(41)		52
Gain (loss) recognized in earnings on hedged items		8		(42)
Gain (loss) recognized in earnings for ineffective portion		0		0
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net		(33)		10
Gains/(Losses) Recognized in Earnings Including Gains/(Losses) Attributable to Other		0		0
Derivatives designated as hedging instruments | Foreign exchange contracts | Fair value hedging | Interest credited to policyholder account balances
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in earnings on hedged items				0
Gain (loss) recognized in earnings for ineffective portion				0
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net				0
Gains/(Losses) Recognized in Earnings Including Gains/(Losses) Attributable to Other				0
Derivatives designated as hedging instruments | Foreign exchange contracts | Fair value hedging | Other Income
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in earnings on derivatives		0		0
Gain (loss) recognized in earnings on hedged items		0		1
Gain (loss) recognized in earnings for ineffective portion		0		0
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net		0		0
Gains/(Losses) Recognized in Earnings Including Gains/(Losses) Attributable to Other		0		1
Derivatives designated as hedging instruments | Foreign exchange contracts | Fair value hedging | Loss on extinguishment of debt
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in earnings on derivatives		0		0
Gain (loss) recognized in earnings on hedged items		0		0
Gain (loss) recognized in earnings for ineffective portion		0		0
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net		0		0
Gains/(Losses) Recognized in Earnings Including Gains/(Losses) Attributable to Other		0		0
Derivatives designated as hedging instruments | Equity contracts | Fair value hedging | Net realized capital gains (losses)
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in earnings on derivatives		0		(2)
Gain (loss) recognized in earnings on hedged items		0		0
Gain (loss) recognized in earnings for ineffective portion		0		0
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net		0		(2)
Gains/(Losses) Recognized in Earnings Including Gains/(Losses) Attributable to Other		0		0
Derivatives not designated as hedging instruments
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in earnings on derivatives		9		(333)
Derivatives not designated as hedging instruments | Net realized capital gains (losses)
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in earnings on derivatives		(13)		(384)
Derivatives not designated as hedging instruments | Net investment income
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in earnings on derivatives		(4)		(2)
Derivatives not designated as hedging instruments | Other Income
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in earnings on derivatives		12		33
Derivatives not designated as hedging instruments | Policy fees
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in earnings on derivatives		17		20
Derivatives not designated as hedging instruments | Policyholder benefits and claims incurred
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in earnings on derivatives		(3)		0
Derivatives not designated as hedging instruments | Fair value hedging
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in earnings on derivatives		9		(333)
Derivatives not designated as hedging instruments | Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in earnings on derivatives		(398)		(152)
Derivatives not designated as hedging instruments | Foreign exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in earnings on derivatives		(139)		(46)
Derivatives not designated as hedging instruments | Equity contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in earnings on derivatives		(73)		(314)
Derivatives not designated as hedging instruments | Commodity contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in earnings on derivatives		0		0
Derivatives not designated as hedging instruments | Credit contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in earnings on derivatives		11		15
Derivatives not designated as hedging instruments | Other contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in earnings on derivatives		17		18
Derivatives not designated as hedging instruments | Embedded derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in earnings on derivatives		$ 591		$ 146