FAIR VALUE MEASUREMENTS (Details - Quantitative Information about Level 3 Fair Value Measurements, Liabilities) $ in Millions	Jun. 30, 2019 USD ($)	Dec. 31, 2018 USD ($)
GMWB | Minimum | Measurement Input Equity Volatility [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.0615	0.0605
GMWB | Minimum | Measurement Input Base Lapse Rates [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.0016	0.0016
GMWB | Minimum | Measurement Input Dynamic Lapse Multiplier [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.2000	0.2000
GMWB | Minimum | Measurement Input Mortality Multiplier [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.4000	0.4000
GMWB | Minimum | Measurement Input Utilization Rate [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.9000	0.9000
GMWB | Minimum | Measurement Input Equity Interest Rate Correlation [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.2000	0.2000
GMWB | Maximum | Measurement Input Equity Volatility [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.4875	0.4765
GMWB | Maximum | Measurement Input Base Lapse Rates [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.1260	0.1260
GMWB | Maximum | Measurement Input Dynamic Lapse Multiplier [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	1.8000	1.8000
GMWB | Maximum | Measurement Input Mortality Multiplier [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	1.5300	1.5300
GMWB | Maximum | Measurement Input Utilization Rate [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	1.0000	1.0000
GMWB | Maximum | Measurement Input Equity Interest Rate Correlation [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.4000	0.4000
GMWB | Discounted cash flow | Level 3
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Fair value	$ 2,563	$ 1,943
Index Annuities | Minimum | Measurement Input Mortality Multiplier [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.4200	0.4200
Index Annuities | Minimum | Measurement Input Lapse Rate [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.0050	0.0050
Index Annuities | Minimum | Measurement Input Options Budget [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.0100	0.0100
Index Annuities | Maximum | Measurement Input Mortality Multiplier [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	1.6200	1.6200
Index Annuities | Maximum | Measurement Input Lapse Rate [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.4000	0.4000
Index Annuities | Maximum | Measurement Input Options Budget [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.0400	0.0300
Index Annuities | Discounted cash flow | Level 3
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Fair value	$ 2,973	$ 1,778
Indexed Life | Minimum | Measurement Input Base Lapse Rates [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.0000	0.0000
Indexed Life | Minimum | Measurement Input Mortality Rate [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.0000	0.0000
Indexed Life | Maximum | Measurement Input Base Lapse Rates [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.3797	0.1300
Indexed Life | Maximum | Measurement Input Mortality Rate [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	1.0000	1.0000
Indexed Life | Discounted cash flow | Level 3
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Fair value	$ 504	$ 374