FAIR VALUE MEASUREMENTS (Details - Quantitative Information about Level 3 Fair Value Measurements, Liabilities) $ in Millions	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Variable annuity guaranteed minimum withdrawal benefits | Minimum | Measurement Input Equity Volatility [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.0645	0.0615
Variable annuity guaranteed minimum withdrawal benefits | Minimum | Measurement Input Base Lapse Rates [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.0016	0.0016
Variable annuity guaranteed minimum withdrawal benefits | Minimum | Measurement Input Dynamic Lapse Multiplier [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.5000	0.5000
Variable annuity guaranteed minimum withdrawal benefits | Minimum | Measurement Input Mortality Multiplier [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.3800	0.3800
Variable annuity guaranteed minimum withdrawal benefits | Minimum | Measurement Input Utilization Rate [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.9000	0.9000
Variable annuity guaranteed minimum withdrawal benefits | 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
Variable annuity guaranteed minimum withdrawal benefits | Minimum | Measurement Input, NPA [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.0006	0.0012
Variable annuity guaranteed minimum withdrawal benefits | Maximum | Measurement Input Equity Volatility [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.5085	0.4885
Variable annuity guaranteed minimum withdrawal benefits | Maximum | Measurement Input Base Lapse Rates [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.1260	0.1260
Variable annuity guaranteed minimum withdrawal benefits | Maximum | Measurement Input Dynamic Lapse Multiplier [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	1.4300	1.4300
Variable annuity guaranteed minimum withdrawal benefits | Maximum | Measurement Input Mortality Multiplier [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	1.4700	1.4700
Variable annuity guaranteed minimum withdrawal benefits | Maximum | Measurement Input Utilization Rate [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	1.0000	1.0000
Variable annuity guaranteed minimum withdrawal benefits | 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
Variable annuity guaranteed minimum withdrawal benefits | Maximum | Measurement Input, NPA [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.0148	0.0153
Variable annuity guaranteed minimum withdrawal benefits | Discounted cash flow | Level 3
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Fair value	$ 3,572	$ 2,474
Index annuities including certain GMWB | Level 3
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embeded derivative liability	$ 726
Index annuities including certain GMWB | Minimum | Measurement Input Utilization Rate [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.8000
Index annuities including certain GMWB | Maximum | Measurement Input Utilization Rate [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	1.0000
Index annuities | Minimum | Measurement Input Mortality Multiplier [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.2400	0.2400
Index annuities | Minimum | Measurement Input Lapse Rate [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.0038	0.0031
Index annuities | Minimum | Measurement Input Options Budget [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.0000	0.0100
Index annuities | Minimum | Measurement Input, NPA [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.0006	0.0012
Index annuities | Maximum | Measurement Input Mortality Multiplier [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	1.8000	1.8000
Index annuities | Maximum | Measurement Input Lapse Rate [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.5000	0.5000
Index annuities | Maximum | Measurement Input Options Budget [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.0400	0.0400
Index annuities | Maximum | Measurement Input, NPA [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.0148	0.0153
Index annuities | Discounted cash flow | Level 3
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Fair value	$ 5,538	$ 3,895
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 | Minimum | Measurement Input, NPA [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.0006	0.0012
Indexed Life | Maximum | Measurement Input Base Lapse Rates [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.3797	0.3797
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 | Maximum | Measurement Input, NPA [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Embedded derivative liability, measurement input	0.0148	0.0153
Indexed Life | Discounted cash flow | Level 3
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Fair value	$ 649	$ 510