INVESTMENTS - Credit Quality (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Commercial Mortgage Loans
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	$ 1,025
2019	805
2018	1,265
2017	1,204
2016	2,772
Prior	3,048
Total	10,119	$ 9,390
Age Analysis of Past Due Mortgage Loan
Total Past Due	0	0
Current	10,119	9,390
Total	10,119	9,390
Non-accruing Loans	0	0
Total	10,119	9,390
Non-accruing Loans with No Allowance	0	0
Interest Income on Non-accruing Loans	0	0
Commercial Mortgage Loans | 30-59 Days
Age Analysis of Past Due Mortgage Loan
Total Past Due	0	0
Commercial Mortgage Loans | 60-89 Days
Age Analysis of Past Due Mortgage Loan
Total Past Due	0	0
Commercial Mortgage Loans | 90 Days Or Greater
Age Analysis of Past Due Mortgage Loan
Total Past Due	0	0
Commercial Mortgage Loans | Greater than 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	749
2019	492
2018	772
2017	268
2016	2,053
Prior	1,268
Total	5,602	5,251
Age Analysis of Past Due Mortgage Loan
Total	5,602	5,251
Commercial Mortgage Loans | 1.8x to 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	227
2019	77
2018	118
2017	378
2016	184
Prior	524
Total	1,508	1,331
Age Analysis of Past Due Mortgage Loan
Total	1,508	1,331
Commercial Mortgage Loans | 1.5x to 1.8x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	49
2019	138
2018	186
2017	480
2016	437
Prior	569
Total	1,859	1,546
Age Analysis of Past Due Mortgage Loan
Total	1,859	1,546
Commercial Mortgage Loans | 1.2x to 1.5x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	0
2019	56
2018	154
2017	78
2016	97
Prior	533
Total	918	974
Age Analysis of Past Due Mortgage Loan
Total	918	974
Commercial Mortgage Loans | 1.0x to 1.2x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	0
2019	42
2018	35
2017	0
2016	1
Prior	82
Total	160	288
Age Analysis of Past Due Mortgage Loan
Total	160	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	72
Total	72	0
Age Analysis of Past Due Mortgage Loan
Total	72	0
Commercial Mortgage Loans | 0% - 50%
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	0
2019	0
2018	0
2017	324
2016	187
Prior	650
Total	1,161	1,180
Age Analysis of Past Due Mortgage Loan
Total	1,161	1,180
Commercial Mortgage Loans | 0% - 50% | Greater than 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	952	903
Age Analysis of Past Due Mortgage Loan
Total	952	903
Commercial Mortgage Loans | 0% - 50% | 1.8x to 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	38
Age Analysis of Past Due Mortgage Loan
Total	0	38
Commercial Mortgage Loans | 0% - 50% | 1.5x to 1.8x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	185	214
Age Analysis of Past Due Mortgage Loan
Total	185	214
Commercial Mortgage Loans | 0% - 50% | 1.2x to 1.5x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	24	25
Age Analysis of Past Due Mortgage Loan
Total	24	25
Commercial Mortgage Loans | 0% - 50% | 1.0x to 1.2x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Age Analysis of Past Due Mortgage Loan
Total	0	0
Commercial Mortgage Loans | 0% - 50% | Less than 1.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Age Analysis of Past Due Mortgage Loan
Total	0	0
Commercial Mortgage Loans | 50% - 70%
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	935
2019	411
2018	885
2017	760
2016	2,432
Prior	1,608
Total	7,031	7,447
Age Analysis of Past Due Mortgage Loan
Total	7,031	7,447
Commercial Mortgage Loans | 50% - 70% | Greater than 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	3,992	4,097
Age Analysis of Past Due Mortgage Loan
Total	3,992	4,097
Commercial Mortgage Loans | 50% - 70% | 1.8x to 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	1,160	1,195
Age Analysis of Past Due Mortgage Loan
Total	1,160	1,195
Commercial Mortgage Loans | 50% - 70% | 1.5x to 1.8x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	1,342	1,118
Age Analysis of Past Due Mortgage Loan
Total	1,342	1,118
Commercial Mortgage Loans | 50% - 70% | 1.2x to 1.5x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	511	795
Age Analysis of Past Due Mortgage Loan
Total	511	795
Commercial Mortgage Loans | 50% - 70% | 1.0x to 1.2x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	26	242
Age Analysis of Past Due Mortgage Loan
Total	26	242
Commercial Mortgage Loans | 50% - 70% | Less than 1.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Age Analysis of Past Due Mortgage Loan
Total	0	0
Commercial Mortgage Loans | 70% - 90%
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	90
2019	394
2018	368
2017	115
2016	153
Prior	574
Total	1,694	763
Age Analysis of Past Due Mortgage Loan
Total	1,694	763
Commercial Mortgage Loans | 70% - 90% | Greater than 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	574	251
Age Analysis of Past Due Mortgage Loan
Total	574	251
Commercial Mortgage Loans | 70% - 90% | 1.8x to 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	348	98
Age Analysis of Past Due Mortgage Loan
Total	348	98
Commercial Mortgage Loans | 70% - 90% | 1.5x to 1.8x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	332	214
Age Analysis of Past Due Mortgage Loan
Total	332	214
Commercial Mortgage Loans | 70% - 90% | 1.2x to 1.5x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	306	154
Age Analysis of Past Due Mortgage Loan
Total	306	154
Commercial Mortgage Loans | 70% - 90% | 1.0x to 1.2x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	134	46
Age Analysis of Past Due Mortgage Loan
Total	134	46
Commercial Mortgage Loans | 70% - 90% | Less than 1.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Age Analysis of Past Due Mortgage Loan
Total	0	0
Commercial Mortgage Loans | 90% plus
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	0
2019	0
2018	12
2017	5
2016	0
Prior	216
Total	233	0
Age Analysis of Past Due Mortgage Loan
Total	233	0
Commercial Mortgage Loans | 90% plus | Greater than 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	84	0
Age Analysis of Past Due Mortgage Loan
Total	84	0
Commercial Mortgage Loans | 90% plus | 1.8x to 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Age Analysis of Past Due Mortgage Loan
Total	0	0
Commercial Mortgage Loans | 90% plus | 1.5x to 1.8x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Age Analysis of Past Due Mortgage Loan
Total	0	0
Commercial Mortgage Loans | 90% plus | 1.2x to 1.5x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	77	0
Age Analysis of Past Due Mortgage Loan
Total	77	0
Commercial Mortgage Loans | 90% plus | 1.0x to 1.2x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Age Analysis of Past Due Mortgage Loan
Total	0	0
Commercial Mortgage Loans | 90% plus | Less than 1.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	72	0
Age Analysis of Past Due Mortgage Loan
Total	72	0
Agricultural Mortgage Loans
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	434
2019	268
2018	343
2017	271
2016	368
Prior	1,069
Total	2,753	2,717
Age Analysis of Past Due Mortgage Loan
Total Past Due	165	124
Current	2,588	2,593
Total	2,753	2,717
Non-accruing Loans	0	0
Total	2,753	2,717
Non-accruing Loans with No Allowance	0	0
Interest Income on Non-accruing Loans	0	0
Agricultural Mortgage Loans | 30-59 Days
Age Analysis of Past Due Mortgage Loan
Total Past Due	24	57
Agricultural Mortgage Loans | 60-89 Days
Age Analysis of Past Due Mortgage Loan
Total Past Due	6	1
Agricultural Mortgage Loans | 90 Days Or Greater
Age Analysis of Past Due Mortgage Loan
Total Past Due	135	66
Agricultural Mortgage Loans | Greater than 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	52
2019	27
2018	39
2017	38
2016	73
Prior	158
Total	387	404
Age Analysis of Past Due Mortgage Loan
Total	387	404
Agricultural Mortgage Loans | 1.8x to 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	33
2019	36
2018	14
2017	15
2016	21
Prior	90
Total	209	191
Age Analysis of Past Due Mortgage Loan
Total	209	191
Agricultural Mortgage Loans | 1.5x to 1.8x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	103
2019	38
2018	45
2017	41
2016	52
Prior	212
Total	491	477
Age Analysis of Past Due Mortgage Loan
Total	491	477
Agricultural Mortgage Loans | 1.2x to 1.5x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	165
2019	118
2018	146
2017	105
2016	147
Prior	327
Total	1,008	990
Age Analysis of Past Due Mortgage Loan
Total	1,008	990
Agricultural Mortgage Loans | 1.0x to 1.2x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	77
2019	39
2018	91
2017	71
2016	57
Prior	265
Total	600	572
Age Analysis of Past Due Mortgage Loan
Total	600	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	17
Total	58	83
Age Analysis of Past Due Mortgage Loan
Total	58	83
Agricultural Mortgage Loans | 0% - 50%
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	181
2019	137
2018	168
2017	161
2016	232
Prior	679
Total	1,558	1,583
Age Analysis of Past Due Mortgage Loan
Total	1,558	1,583
Agricultural Mortgage Loans | 0% - 50% | Greater than 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	283	322
Age Analysis of Past Due Mortgage Loan
Total	283	322
Agricultural Mortgage Loans | 0% - 50% | 1.8x to 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	107	104
Age Analysis of Past Due Mortgage Loan
Total	107	104
Agricultural Mortgage Loans | 0% - 50% | 1.5x to 1.8x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	271	241
Age Analysis of Past Due Mortgage Loan
Total	271	241
Agricultural Mortgage Loans | 0% - 50% | 1.2x to 1.5x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	529	545
Age Analysis of Past Due Mortgage Loan
Total	529	545
Agricultural Mortgage Loans | 0% - 50% | 1.0x to 1.2x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	335	321
Age Analysis of Past Due Mortgage Loan
Total	335	321
Agricultural Mortgage Loans | 0% - 50% | Less than 1.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	33	50
Age Analysis of Past Due Mortgage Loan
Total	33	50
Agricultural Mortgage Loans | 50% - 70%
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	253
2019	131
2018	172
2017	110
2016	136
Prior	372
Total	1,174	1,115
Age Analysis of Past Due Mortgage Loan
Total	1,174	1,115
Agricultural Mortgage Loans | 50% - 70% | Greater than 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	104	82
Age Analysis of Past Due Mortgage Loan
Total	104	82
Agricultural Mortgage Loans | 50% - 70% | 1.8x to 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	100	87
Age Analysis of Past Due Mortgage Loan
Total	100	87
Agricultural Mortgage Loans | 50% - 70% | 1.5x to 1.8x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	220	236
Age Analysis of Past Due Mortgage Loan
Total	220	236
Agricultural Mortgage Loans | 50% - 70% | 1.2x to 1.5x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	460	426
Age Analysis of Past Due Mortgage Loan
Total	460	426
Agricultural Mortgage Loans | 50% - 70% | 1.0x to 1.2x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	265	251
Age Analysis of Past Due Mortgage Loan
Total	265	251
Agricultural Mortgage Loans | 50% - 70% | Less than 1.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	25	33
Age Analysis of Past Due Mortgage Loan
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
Age Analysis of Past Due Mortgage Loan
Total	21	19
Agricultural Mortgage Loans | 70% - 90% | Greater than 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Age Analysis of Past Due Mortgage Loan
Total	0	0
Agricultural Mortgage Loans | 70% - 90% | 1.8x to 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	2	0
Age Analysis of Past Due Mortgage Loan
Total	2	0
Agricultural Mortgage Loans | 70% - 90% | 1.5x to 1.8x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Age Analysis of Past Due Mortgage Loan
Total	0	0
Agricultural Mortgage Loans | 70% - 90% | 1.2x to 1.5x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	19	19
Age Analysis of Past Due Mortgage Loan
Total	19	19
Agricultural Mortgage Loans | 70% - 90% | 1.0x to 1.2x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Age Analysis of Past Due Mortgage Loan
Total	0	0
Agricultural Mortgage Loans | 70% - 90% | Less than 1.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Age Analysis of Past Due Mortgage Loan
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
Age Analysis of Past Due Mortgage Loan
Total	0	0
Agricultural Mortgage Loans | 90% plus | Greater than 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Age Analysis of Past Due Mortgage Loan
Total	0	0
Agricultural Mortgage Loans | 90% plus | 1.8x to 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Age Analysis of Past Due Mortgage Loan
Total	0	0
Agricultural Mortgage Loans | 90% plus | 1.5x to 1.8x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Age Analysis of Past Due Mortgage Loan
Total	0	0
Agricultural Mortgage Loans | 90% plus | 1.2x to 1.5x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Age Analysis of Past Due Mortgage Loan
Total	0	0
Agricultural Mortgage Loans | 90% plus | 1.0x to 1.2x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Age Analysis of Past Due Mortgage Loan
Total	0	0
Agricultural Mortgage Loans | 90% plus | Less than 1.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Age Analysis of Past Due Mortgage Loan
Total	0	0
Total Mortgages Loan
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	1,459
2019	1,073
2018	1,608
2017	1,475
2016	3,140
Prior	4,117
Total	12,872	12,107
Age Analysis of Past Due Mortgage Loan
Total Past Due	165	124
Current	12,707	11,983
Total	12,872	12,107
Non-accruing Loans	0	0
Total	12,872	12,107
Non-accruing Loans with No Allowance	0	0
Interest Income on Non-accruing Loans	0	0
Total Mortgages Loan | 30-59 Days
Age Analysis of Past Due Mortgage Loan
Total Past Due	24	57
Total Mortgages Loan | 60-89 Days
Age Analysis of Past Due Mortgage Loan
Total Past Due	6	1
Total Mortgages Loan | 90 Days Or Greater
Age Analysis of Past Due Mortgage Loan
Total Past Due	135	66
Total Mortgages Loan | Greater than 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	801
2019	519
2018	811
2017	306
2016	2,126
Prior	1,426
Total	5,989	5,655
Age Analysis of Past Due Mortgage Loan
Total	5,989	5,655
Total Mortgages Loan | 1.8x to 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	260
2019	113
2018	132
2017	393
2016	205
Prior	614
Total	1,717	1,522
Age Analysis of Past Due Mortgage Loan
Total	1,717	1,522
Total Mortgages Loan | 1.5x to 1.8x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	152
2019	176
2018	231
2017	521
2016	489
Prior	781
Total	2,350	2,023
Age Analysis of Past Due Mortgage Loan
Total	2,350	2,023
Total Mortgages Loan | 1.2x to 1.5x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	165
2019	174
2018	300
2017	183
2016	244
Prior	860
Total	1,926	1,964
Age Analysis of Past Due Mortgage Loan
Total	1,926	1,964
Total Mortgages Loan | 1.0x to 1.2x
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	77
2019	81
2018	126
2017	71
2016	58
Prior	347
Total	760	860
Age Analysis of Past Due Mortgage Loan
Total	760	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	89
Total	130	83
Age Analysis of Past Due Mortgage Loan
Total	130	83
Total Mortgages Loan | 0% - 50%
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	181
2019	137
2018	168
2017	485
2016	419
Prior	1,329
Total	2,719	2,763
Age Analysis of Past Due Mortgage Loan
Total	2,719	2,763
Total Mortgages Loan | 0% - 50% | Greater than 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	1,235	1,225
Age Analysis of Past Due Mortgage Loan
Total	1,235	1,225
Total Mortgages Loan | 0% - 50% | 1.8x to 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	107	142
Age Analysis of Past Due Mortgage Loan
Total	107	142
Total Mortgages Loan | 0% - 50% | 1.5x to 1.8x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	456	455
Age Analysis of Past Due Mortgage Loan
Total	456	455
Total Mortgages Loan | 0% - 50% | 1.2x to 1.5x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	553	570
Age Analysis of Past Due Mortgage Loan
Total	553	570
Total Mortgages Loan | 0% - 50% | 1.0x to 1.2x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	335	321
Age Analysis of Past Due Mortgage Loan
Total	335	321
Total Mortgages Loan | 0% - 50% | Less than 1.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	33	50
Age Analysis of Past Due Mortgage Loan
Total	33	50
Total Mortgages Loan | 50% - 70%
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	1,188
2019	542
2018	1,057
2017	870
2016	2,568
Prior	1,980
Total	8,205	8,562
Age Analysis of Past Due Mortgage Loan
Total	8,205	8,562
Total Mortgages Loan | 50% - 70% | Greater than 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	4,096	4,179
Age Analysis of Past Due Mortgage Loan
Total	4,096	4,179
Total Mortgages Loan | 50% - 70% | 1.8x to 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	1,260	1,282
Age Analysis of Past Due Mortgage Loan
Total	1,260	1,282
Total Mortgages Loan | 50% - 70% | 1.5x to 1.8x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	1,562	1,354
Age Analysis of Past Due Mortgage Loan
Total	1,562	1,354
Total Mortgages Loan | 50% - 70% | 1.2x to 1.5x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	971	1,221
Age Analysis of Past Due Mortgage Loan
Total	971	1,221
Total Mortgages Loan | 50% - 70% | 1.0x to 1.2x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	291	493
Age Analysis of Past Due Mortgage Loan
Total	291	493
Total Mortgages Loan | 50% - 70% | Less than 1.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	25	33
Age Analysis of Past Due Mortgage Loan
Total	25	33
Total Mortgages Loan | 70% - 90%
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	90
2019	394
2018	371
2017	115
2016	153
Prior	592
Total	1,715	782
Age Analysis of Past Due Mortgage Loan
Total	1,715	782
Total Mortgages Loan | 70% - 90% | Greater than 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	574	251
Age Analysis of Past Due Mortgage Loan
Total	574	251
Total Mortgages Loan | 70% - 90% | 1.8x to 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	350	98
Age Analysis of Past Due Mortgage Loan
Total	350	98
Total Mortgages Loan | 70% - 90% | 1.5x to 1.8x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	332	214
Age Analysis of Past Due Mortgage Loan
Total	332	214
Total Mortgages Loan | 70% - 90% | 1.2x to 1.5x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	325	173
Age Analysis of Past Due Mortgage Loan
Total	325	173
Total Mortgages Loan | 70% - 90% | 1.0x to 1.2x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	134	46
Age Analysis of Past Due Mortgage Loan
Total	134	46
Total Mortgages Loan | 70% - 90% | Less than 1.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Age Analysis of Past Due Mortgage Loan
Total	0	0
Total Mortgages Loan | 90% plus
Financing Receivable, before Allowance for Credit Loss [Abstract]
2020	0
2019	0
2018	12
2017	5
2016	0
Prior	216
Total	233	0
Age Analysis of Past Due Mortgage Loan
Total	233	0
Total Mortgages Loan | 90% plus | Greater than 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	84	0
Age Analysis of Past Due Mortgage Loan
Total	84	0
Total Mortgages Loan | 90% plus | 1.8x to 2.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Age Analysis of Past Due Mortgage Loan
Total	0	0
Total Mortgages Loan | 90% plus | 1.5x to 1.8x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Age Analysis of Past Due Mortgage Loan
Total	0	0
Total Mortgages Loan | 90% plus | 1.2x to 1.5x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	77	0
Age Analysis of Past Due Mortgage Loan
Total	77	0
Total Mortgages Loan | 90% plus | 1.0x to 1.2x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	0	0
Age Analysis of Past Due Mortgage Loan
Total	0	0
Total Mortgages Loan | 90% plus | Less than 1.0x
Financing Receivable, before Allowance for Credit Loss [Abstract]
Total	72	0
Age Analysis of Past Due Mortgage Loan
Total	$ 72	$ 0