INVESTMENTS - Credit Quality (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Commercial Mortgage Loans
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	$ 746
2019	797
2018	1,248
2017	1,201
2016	2,755
Prior	3,082
Total	9,829	$ 9,373
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	0	0
Current	9,754	9,373
Total	9,754	9,373
Recorded investment, nonaccrual status	75	0
Total	9,829	9,373
Non-accruing Loans with No allowance	75	0
Interest Income on Non-accruing Loans	1	0
Commercial Mortgage Loans | 30-59 Days
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	0	0
Commercial Mortgage Loans | 60-89 Days
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	0	0
Commercial Mortgage Loans | 90 Days Or Greater
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	0	0
Commercial Mortgage Loans | Greater than 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	621
2019	373
2018	800
2017	377
2016	2,134
Prior	1,315
Total	5,620	5,235
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	5,620	5,235
Commercial Mortgage Loans | 1.8x to 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	90
2019	187
2018	123
2017	409
2016	70
Prior	484
Total	1,363	1,331
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	1,363	1,331
Commercial Mortgage Loans | 1.5x to 1.8x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	35
2019	183
2018	230
2017	302
2016	551
Prior	610
Total	1,911	1,546
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	1,911	1,546
Commercial Mortgage Loans | 1.2x to 1.5x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	0
2019	12
2018	12
2017	76
2016	0
Prior	673
Total	773	973
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	773	973
Commercial Mortgage Loans | 1.0x to 1.2x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	0
2019	42
2018	83
2017	37
2016	0
Prior	0
Total	162	288
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	162	288
Commercial Mortgage Loans | Less than 1.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Total	0	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	0	0
Commercial Mortgage Loans | 0% - 50%
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	0
2019	0
2018	29
2017	324
2016	196
Prior	748
Total	1,297	1,163
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	1,297	1,163
Commercial Mortgage Loans | 0% - 50% | Greater than 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	1,016	887
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	1,016	887
Commercial Mortgage Loans | 0% - 50% | 1.8x to 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	20	38
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	20	38
Commercial Mortgage Loans | 0% - 50% | 1.5x to 1.8x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	237	214
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	237	214
Commercial Mortgage Loans | 0% - 50% | 1.2x to 1.5x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	24	24
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	24	24
Commercial Mortgage Loans | 0% - 50% | 1.0x to 1.2x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	0	0
Commercial Mortgage Loans | 0% - 50% | Less than 1.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	0	0
Commercial Mortgage Loans | 50% - 70%
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	656
2019	613
2018	915
2017	759
2016	2,501
Prior	1,714
Total	7,158	7,447
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	7,158	7,447
Commercial Mortgage Loans | 50% - 70% | Greater than 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	4,208	4,097
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	4,208	4,097
Commercial Mortgage Loans | 50% - 70% | 1.8x to 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	1,080	1,195
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	1,080	1,195
Commercial Mortgage Loans | 50% - 70% | 1.5x to 1.8x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	1,353	1,118
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	1,353	1,118
Commercial Mortgage Loans | 50% - 70% | 1.2x to 1.5x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	485	795
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	485	795
Commercial Mortgage Loans | 50% - 70% | 1.0x to 1.2x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	32	242
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	32	242
Commercial Mortgage Loans | 50% - 70% | Less than 1.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	0	0
Commercial Mortgage Loans | 70% - 90%
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	90
2019	184
2018	304
2017	113
2016	58
Prior	464
Total	1,213	763
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	1,213	763
Commercial Mortgage Loans | 70% - 90% | Greater than 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	312	251
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	312	251
Commercial Mortgage Loans | 70% - 90% | 1.8x to 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	263	98
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	263	98
Commercial Mortgage Loans | 70% - 90% | 1.5x to 1.8x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	321	214
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	321	214
Commercial Mortgage Loans | 70% - 90% | 1.2x to 1.5x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	187	154
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	187	154
Commercial Mortgage Loans | 70% - 90% | 1.0x to 1.2x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	130	46
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	130	46
Commercial Mortgage Loans | 70% - 90% | Less than 1.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	0	0
Commercial Mortgage Loans | 90% plus
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	0
2019	0
2018	0
2017	5
2016	0
Prior	156
Total	161	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	161	0
Commercial Mortgage Loans | 90% plus | Greater than 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	84	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	84	0
Commercial Mortgage Loans | 90% plus | 1.8x to 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	0	0
Commercial Mortgage Loans | 90% plus | 1.5x to 1.8x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	0	0
Commercial Mortgage Loans | 90% plus | 1.2x to 1.5x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	77	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	77	0
Commercial Mortgage Loans | 90% plus | 1.0x to 1.2x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	0	0
Commercial Mortgage Loans | 90% plus | Less than 1.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	0	0
Agricultural Mortgage Loans
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	310
2019	278
2018	348
2017	279
2016	383
Prior	1,145
Total	2,743	2,717
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	125	124
Current	2,618	2,593
Total	2,743	2,717
Recorded investment, nonaccrual status	0	0
Total	2,743	2,717
Non-accruing Loans with No allowance	0	0
Interest Income on Non-accruing Loans	0	0
Agricultural Mortgage Loans | 30-59 Days
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	67	57
Agricultural Mortgage Loans | 60-89 Days
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	9	1
Agricultural Mortgage Loans | 90 Days Or Greater
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	49	66
Agricultural Mortgage Loans | Greater than 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	43
2019	28
2018	39
2017	37
2016	76
Prior	162
Total	385	404
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	385	404
Agricultural Mortgage Loans | 1.8x to 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	11
2019	36
2018	15
2017	17
2016	21
Prior	91
Total	191	191
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	191	191
Agricultural Mortgage Loans | 1.5x to 1.8x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	75
2019	39
2018	46
2017	43
2016	52
Prior	232
Total	487	477
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	487	477
Agricultural Mortgage Loans | 1.2x to 1.5x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	110
2019	126
2018	148
2017	110
2016	158
Prior	349
Total	1,001	990
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	1,001	990
Agricultural Mortgage Loans | 1.0x to 1.2x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	67
2019	39
2018	92
2017	71
2016	58
Prior	275
Total	602	572
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	602	572
Agricultural Mortgage Loans | Less than 1.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	4
2019	10
2018	8
2017	1
2016	18
Prior	36
Total	77	83
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	77	83
Agricultural Mortgage Loans | 0% - 50%
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	106
2019	139
2018	159
2017	167
2016	254
Prior	733
Total	1,558	1,583
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	1,558	1,583
Agricultural Mortgage Loans | 0% - 50% | Greater than 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	292	322
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	292	322
Agricultural Mortgage Loans | 0% - 50% | 1.8x to 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	106	104
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	106	104
Agricultural Mortgage Loans | 0% - 50% | 1.5x to 1.8x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	255	241
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	255	241
Agricultural Mortgage Loans | 0% - 50% | 1.2x to 1.5x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	520	545
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	520	545
Agricultural Mortgage Loans | 0% - 50% | 1.0x to 1.2x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	333	321
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	333	321
Agricultural Mortgage Loans | 0% - 50% | Less than 1.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	52	50
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	52	50
Agricultural Mortgage Loans | 50% - 70%
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	204
2019	139
2018	186
2017	112
2016	129
Prior	394
Total	1,164	1,115
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	1,164	1,115
Agricultural Mortgage Loans | 50% - 70% | Greater than 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	93	82
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	93	82
Agricultural Mortgage Loans | 50% - 70% | 1.8x to 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	83	87
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	83	87
Agricultural Mortgage Loans | 50% - 70% | 1.5x to 1.8x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	232	236
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	232	236
Agricultural Mortgage Loans | 50% - 70% | 1.2x to 1.5x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	462	426
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	462	426
Agricultural Mortgage Loans | 50% - 70% | 1.0x to 1.2x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	269	251
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	269	251
Agricultural Mortgage Loans | 50% - 70% | Less than 1.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	25	33
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	25	33
Agricultural Mortgage Loans | 70% - 90%
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	0
2019	0
2018	3
2017	0
2016	0
Prior	18
Total	21	19
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	21	19
Agricultural Mortgage Loans | 70% - 90% | Greater than 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	0	0
Agricultural Mortgage Loans | 70% - 90% | 1.8x to 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	2	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	2	0
Agricultural Mortgage Loans | 70% - 90% | 1.5x to 1.8x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	0	0
Agricultural Mortgage Loans | 70% - 90% | 1.2x to 1.5x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	19	19
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	19	19
Agricultural Mortgage Loans | 70% - 90% | 1.0x to 1.2x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	0	0
Agricultural Mortgage Loans | 70% - 90% | Less than 1.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	0	0
Agricultural Mortgage Loans | 90% plus
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Total	0	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	0	0
Agricultural Mortgage Loans | 90% plus | Greater than 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	0	0
Agricultural Mortgage Loans | 90% plus | 1.8x to 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	0	0
Agricultural Mortgage Loans | 90% plus | 1.5x to 1.8x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	0	0
Agricultural Mortgage Loans | 90% plus | 1.2x to 1.5x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	0	0
Agricultural Mortgage Loans | 90% plus | 1.0x to 1.2x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	0	0
Agricultural Mortgage Loans | 90% plus | Less than 1.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	0	0
Total Mortgages Loan
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	1,056
2019	1,075
2018	1,596
2017	1,480
2016	3,138
Prior	4,227
Total	12,572	12,090
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	125	124
Current	12,372	11,966
Total	12,497	12,090
Recorded investment, nonaccrual status	75	0
Total	12,572	12,090
Non-accruing Loans with No allowance	75	0
Interest Income on Non-accruing Loans	1	0
Total Mortgages Loan | 30-59 Days
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	67	57
Total Mortgages Loan | 60-89 Days
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	9	1
Total Mortgages Loan | 90 Days Or Greater
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	49	66
Total Mortgages Loan | Greater than 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	664
2019	401
2018	839
2017	414
2016	2,210
Prior	1,477
Total	6,005	5,639
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	6,005	5,639
Total Mortgages Loan | 1.8x to 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	101
2019	223
2018	138
2017	426
2016	91
Prior	575
Total	1,554	1,522
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	1,554	1,522
Total Mortgages Loan | 1.5x to 1.8x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	110
2019	222
2018	276
2017	345
2016	603
Prior	842
Total	2,398	2,023
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	2,398	2,023
Total Mortgages Loan | 1.2x to 1.5x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	110
2019	138
2018	160
2017	186
2016	158
Prior	1,022
Total	1,774	1,963
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	1,774	1,963
Total Mortgages Loan | 1.0x to 1.2x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	67
2019	81
2018	175
2017	108
2016	58
Prior	275
Total	764	860
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	764	860
Total Mortgages Loan | Less than 1.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	4
2019	10
2018	8
2017	1
2016	18
Prior	36
Total	77	83
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	77	83
Total Mortgages Loan | 0% - 50%
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	106
2019	139
2018	188
2017	491
2016	450
Prior	1,481
Total	2,855	2,746
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	2,855	2,746
Total Mortgages Loan | 0% - 50% | Greater than 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	1,308	1,209
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	1,308	1,209
Total Mortgages Loan | 0% - 50% | 1.8x to 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	126	142
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	126	142
Total Mortgages Loan | 0% - 50% | 1.5x to 1.8x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	492	455
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	492	455
Total Mortgages Loan | 0% - 50% | 1.2x to 1.5x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	544	569
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	544	569
Total Mortgages Loan | 0% - 50% | 1.0x to 1.2x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	333	321
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	333	321
Total Mortgages Loan | 0% - 50% | Less than 1.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	52	50
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	52	50
Total Mortgages Loan | 50% - 70%
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	860
2019	752
2018	1,101
2017	871
2016	2,630
Prior	2,108
Total	8,322	8,562
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	8,322	8,562
Total Mortgages Loan | 50% - 70% | Greater than 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	4,301	4,179
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	4,301	4,179
Total Mortgages Loan | 50% - 70% | 1.8x to 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	1,163	1,282
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	1,163	1,282
Total Mortgages Loan | 50% - 70% | 1.5x to 1.8x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	1,585	1,354
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	1,585	1,354
Total Mortgages Loan | 50% - 70% | 1.2x to 1.5x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	947	1,221
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	947	1,221
Total Mortgages Loan | 50% - 70% | 1.0x to 1.2x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	301	493
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	301	493
Total Mortgages Loan | 50% - 70% | Less than 1.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	25	33
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	25	33
Total Mortgages Loan | 70% - 90%
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	90
2019	184
2018	307
2017	113
2016	58
Prior	482
Total	1,234	782
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	1,234	782
Total Mortgages Loan | 70% - 90% | Greater than 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	312	251
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	312	251
Total Mortgages Loan | 70% - 90% | 1.8x to 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	265	98
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	265	98
Total Mortgages Loan | 70% - 90% | 1.5x to 1.8x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	321	214
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	321	214
Total Mortgages Loan | 70% - 90% | 1.2x to 1.5x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	206	173
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	206	173
Total Mortgages Loan | 70% - 90% | 1.0x to 1.2x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	130	46
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	130	46
Total Mortgages Loan | 70% - 90% | Less than 1.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	0	0
Total Mortgages Loan | 90% plus
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	0
2019	0
2018	0
2017	5
2016	0
Prior	156
Total	161	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	161	0
Total Mortgages Loan | 90% plus | Greater than 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	84	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	84	0
Total Mortgages Loan | 90% plus | 1.8x to 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	0	0
Total Mortgages Loan | 90% plus | 1.5x to 1.8x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	0	0
Total Mortgages Loan | 90% plus | 1.2x to 1.5x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	77	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	77	0
Total Mortgages Loan | 90% plus | 1.0x to 1.2x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	0	0
Total Mortgages Loan | 90% plus | Less than 1.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Financing Receivable, Recorded Investment, Aging [Abstract]
Total	$ 0	$ 0