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v3.21.1

Investments (Allowance for Credit Losses) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Allowance for Loan and Lease Losses [Roll Forward] |  |
Balance, beginning of year | $ 235 | $ 121
Addition to (release of) allowance for credit/expected losses | (10) | 1
Cumulative effect of adoption of ASU 2016-13 |  | 115
Other | (1) | 3
Total ending balance | 224 | 240
Commercial Mortgage Loans |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Balance, beginning of year | 218 | 114
Addition to (release of) allowance for credit/expected losses | (9) | 1
Cumulative effect of adoption of ASU 2016-13 |  | 110
Other | 0 | 0
Total ending balance | 209 | 225
Agricultural Property Loans |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Balance, beginning of year | 9 | 3
Addition to (release of) allowance for credit/expected losses | (1) | 0
Cumulative effect of adoption of ASU 2016-13 |  | 5
Other | 0 | 0
Total ending balance | 8 | 8
Residential Property Loans |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Balance, beginning of year | 0 | 0
Addition to (release of) allowance for credit/expected losses | 0 | 0
Cumulative effect of adoption of ASU 2016-13 |  | 0
Other | 0 | 0
Total ending balance | 0 | 0
Other Collateralized Loans |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Balance, beginning of year | 3 | 0
Addition to (release of) allowance for credit/expected losses | 0 | 0
Cumulative effect of adoption of ASU 2016-13 |  | 0
Other | (1) | 3
Total ending balance | 2 | 3
Uncollateralized Loans |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Balance, beginning of year | 5 | 4
Addition to (release of) allowance for credit/expected losses | 0 | 0
Cumulative effect of adoption of ASU 2016-13 |  | 0
Other | 0 | 0
Total ending balance | $ 5 | $ 4

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