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Financing Receivables - Credit Quality - Commercial Mortgage Loans by LTV Ratio and Year of Origination (Details) - Commercial Loans - Commercial mortgage loans - USD ($) $ in Millions | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Amortized cost basis by year of origination and loan-to-value ratio |  |
Originated in Current Fiscal Year | $ 136 | $ 134
Originated in Fiscal Year before Latest Fiscal Year | 124 | 262
Originated Two Years before Latest Fiscal Year | 233 | 195
Originated Three Years before Latest Fiscal Year | 117 | 289
Originated Four Years before Latest Fiscal Year | 177 | 230
Originated Five or More Years before Latest Fiscal Year | 1,114 | 1,615
Total amortized cost basis | 1,901 | 2,725
Greater than 100 Percent |  |
Amortized cost basis by year of origination and loan-to-value ratio |  |
Originated Two Years before Latest Fiscal Year | 20 | 2
Originated Three Years before Latest Fiscal Year | 10 |
Originated Five or More Years before Latest Fiscal Year | 30 | 10
Total amortized cost basis | 60 | 12
80 to 100 Percent |  |
Amortized cost basis by year of origination and loan-to-value ratio |  |
Originated in Current Fiscal Year | 9 | 15
Originated in Fiscal Year before Latest Fiscal Year | 14 | 16
Originated Two Years before Latest Fiscal Year | 9 | 12
Originated Three Years before Latest Fiscal Year | 6 | 3
Originated Four Years before Latest Fiscal Year |  | 7
Originated Five or More Years before Latest Fiscal Year | 37 | 15
Total amortized cost basis | 75 | 68
60 to 80 Percent |  |
Amortized cost basis by year of origination and loan-to-value ratio |  |
Originated in Current Fiscal Year | 95 | 89
Originated in Fiscal Year before Latest Fiscal Year | 69 | 166
Originated Two Years before Latest Fiscal Year | 68 | 27
Originated Three Years before Latest Fiscal Year | 29 | 32
Originated Four Years before Latest Fiscal Year | 61 | 46
Originated Five or More Years before Latest Fiscal Year | 133 | 144
Total amortized cost basis | 455 | 504
40 to 60 Percent |  |
Amortized cost basis by year of origination and loan-to-value ratio |  |
Originated in Current Fiscal Year | 23 | 23
Originated in Fiscal Year before Latest Fiscal Year | 34 | 57
Originated Two Years before Latest Fiscal Year | 95 | 74
Originated Three Years before Latest Fiscal Year | 69 | 155
Originated Four Years before Latest Fiscal Year | 60 | 113
Originated Five or More Years before Latest Fiscal Year | 420 | 551
Total amortized cost basis | 701 | 973
Less than 40 Percent |  |
Amortized cost basis by year of origination and loan-to-value ratio |  |
Originated in Current Fiscal Year | 9 | 7
Originated in Fiscal Year before Latest Fiscal Year | 7 | 23
Originated Two Years before Latest Fiscal Year | 41 | 80
Originated Three Years before Latest Fiscal Year | 3 | 99
Originated Four Years before Latest Fiscal Year | 56 | 64
Originated Five or More Years before Latest Fiscal Year | 494 | 895
Total amortized cost basis | $ 610 | $ 1,168

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