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Lending Activities - Credit Quality of Commercial Mortgages (Details) - Commercial mortgages $ in Millions | Jun. 30, 2024 USD ($) | Dec. 31, 2023 USD ($)
--- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current year | $ 52 | $ 403
Prior year | 493 | 249
Two years prior | 242 | 648
Three years prior | 692 | 191
Four years prior | 158 | 177
Five years & beyond prior | 2,091 | 2,168
Total | $ 3,728 | $ 3,836
Weighted average debt service coverage ratio | 1.8 | 1.8
Weighted average loan-to-value ratio (as a percent) | 64.00% | 62.00%
Less than 65% |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current year | $ 33 | $ 359
Prior year | 357 | 159
Two years prior | 154 | 492
Three years prior | 506 | 177
Four years prior | 150 | 156
Five years & beyond prior | 1,400 | 1,385
Total | 2,600 | 2,728
65% to 75% |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current year | 19 | 10
Prior year | 81 | 15
Two years prior | 46 | 137
Three years prior | 134 | 0
Four years prior | 0 | 21
Five years & beyond prior | 302 | 367
Total | 582 | 550
76% to 80% |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current year | 0 | 0
Prior year | 0 | 32
Two years prior | 0 | 10
Three years prior | 0 | 0
Four years prior | 0 | 0
Five years & beyond prior | 62 | 0
Total | 62 | 42
Greater than 80% |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current year | 0 | 34
Prior year | 55 | 43
Two years prior | 42 | 9
Three years prior | 52 | 14
Four years prior | 8 | 0
Five years & beyond prior | 327 | 416
Total | 484 | 516
Greater than 1.2X |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current year | 33 | 398
Prior year | 460 | 167
Two years prior | 183 | 394
Three years prior | 407 | 135
Four years prior | 102 | 156
Five years & beyond prior | 1,719 | 1,784
Total | 2,904 | 3,034
1.00 - 1.20X |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current year | 19 | 5
Prior year | 33 | 71
Two years prior | 48 | 254
Three years prior | 285 | 56
Four years prior | 56 | 21
Five years & beyond prior | 247 | 298
Total | 688 | 705
Less than 1.00X |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current year | 0 | 0
Prior year | 0 | 11
Two years prior | 11 | 0
Three years prior | 0 | 0
Four years prior | 0 | 0
Five years & beyond prior | 125 | 86
Total | $ 136 | $ 97

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