Average debt service coverage ratio.

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- Definition

Current weighted average loan to value ratio of commercial mortgage loan.

+ References

No definition available.

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- Definition

Original weighted average loan to value ratio of commercial mortgage loan.

+ References

No definition available.

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- Definition

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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- Definition

Amount of financing receivable originated more than five years prior to current fiscal year.

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- Definition

Amount of financing receivable originated four years prior to current fiscal year.

+ References

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- Definition

Amount of financing receivable originated in current fiscal year.

+ References

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- Definition

Amount of financing receivable originated in fiscal year prior to current fiscal year.

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- Definition

Amount of financing receivable originated three years prior to current fiscal year.

+ References

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- Definition

Amount of financing receivable originated two years prior to current fiscal year.

+ References

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- Definition

Amount, before allowance for credit loss, of financing receivable.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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Investments - Investments - Loan-to-Value and Debt Service Coverage Ratio by Origination Year (Details) $ in Millions	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Mar. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Schedule of Investments [Line Items]
Current Weighted Average Loan to Value Ratio of Commercial Mortgage Loan	51.00%
Original Weighted Average Loan to Value Ratio of Commercial Mortgage loan	59.00%
Commercial Loan [Member]
Schedule of Investments [Line Items]
Financing Receivable, before Allowance for Credit Loss	$ 5,730	$ 5,412
Avg. Debt-Service Coverage Ratio	2.52	2.48
Financing Receivable, Allowance for Credit Loss	$ 31	$ 29	$ 34	$ 38
Commercial Loan [Member] \| 65% - 80%
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	1.66	1.61
Commercial Loan [Member] \| Less than 65%
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	2.58	2.55
Amortized Cost [Member] \| Commercial Loan [Member]
Schedule of Investments [Line Items]
Mortgage loans originated in current year	$ 404	$ 1,488
Mortgage loans originated in year before latest fiscal year	1,517	695
Mortgage loans originated two years before latest fiscal year	693	813
Mortgage loans originated three years before latest fiscal year	783	572
Mortgage loans originated four years before latest fiscal year	571	462
Mortgage loans originated five or more years before latest fiscal year	1,762	1,382
Financing Receivable, before Allowance for Credit Loss	5,730	5,412
Amortized Cost [Member] \| Commercial Loan [Member] \| 65% - 80%
Schedule of Investments [Line Items]
Mortgage loans originated in current year	15	7
Mortgage loans originated in year before latest fiscal year	9	50
Mortgage loans originated two years before latest fiscal year	51	91
Mortgage loans originated three years before latest fiscal year	91	100
Mortgage loans originated four years before latest fiscal year	100	45
Mortgage loans originated five or more years before latest fiscal year	135	97
Financing Receivable, before Allowance for Credit Loss	401	390
Amortized Cost [Member] \| Commercial Loan [Member] \| Less than 65%
Schedule of Investments [Line Items]
Mortgage loans originated in current year	389	1,481
Mortgage loans originated in year before latest fiscal year	1,508	645
Mortgage loans originated two years before latest fiscal year	642	722
Mortgage loans originated three years before latest fiscal year	692	472
Mortgage loans originated four years before latest fiscal year	471	417
Mortgage loans originated five or more years before latest fiscal year	1,627	1,285
Financing Receivable, before Allowance for Credit Loss	$ 5,329	$ 5,022
Originated in Current Fiscal Year \| Commercial Loan [Member]
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	2.68	2.70
Originated in Current Fiscal Year \| Commercial Loan [Member] \| 65% - 80%
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	2.02	2.37
Originated in Current Fiscal Year \| Commercial Loan [Member] \| Less than 65%
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	2.70	2.70
Originated in Fiscal Year Before Latest Fiscal Year \| Commercial Loan [Member]
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	2.72	2.77
Originated in Fiscal Year Before Latest Fiscal Year \| Commercial Loan [Member] \| 65% - 80%
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	2.08	2.63
Originated in Fiscal Year Before Latest Fiscal Year \| Commercial Loan [Member] \| Less than 65%
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	2.72	2.78
Originated Two Years Before Latest Fiscal Year \| Commercial Loan [Member]
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	2.74	2.64
Originated Two Years Before Latest Fiscal Year \| Commercial Loan [Member] \| 65% - 80%
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	2.67	1.57
Originated Two Years Before Latest Fiscal Year \| Commercial Loan [Member] \| Less than 65%
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	2.74	2.78
Originated Three Years Before Latest Fiscal Year \| Commercial Loan [Member]
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	2.69	2.02
Originated Three Years Before Latest Fiscal Year \| Commercial Loan [Member] \| 65% - 80%
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	1.59	1.00
Originated Three Years Before Latest Fiscal Year \| Commercial Loan [Member] \| Less than 65%
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	2.83	2.23
Originated Four Years Before Latest Fiscal Year \| Commercial Loan [Member]
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	2.03	1.86
Originated Four Years Before Latest Fiscal Year \| Commercial Loan [Member] \| 65% - 80%
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	1.03	1.37
Originated Four Years Before Latest Fiscal Year \| Commercial Loan [Member] \| Less than 65%
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	2.24	1.91
Originated Five or More Years Before Latest Fiscal Year \| Commercial Loan [Member]
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	2.30	2.41
Originated Five or More Years Before Latest Fiscal Year \| Commercial Loan [Member] \| 65% - 80%
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	1.73	1.80
Originated Five or More Years Before Latest Fiscal Year \| Commercial Loan [Member] \| Less than 65%
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	2.35	2.45