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.

+ References

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- Definition

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

+ References

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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	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Schedule of Investments [Line Items]
Current Weighted Average Loan to Value Ratio of Commercial Mortgage Loan	56.00%
Original Weighted Average Loan to Value Ratio of Commercial Mortgage loan	61.00%
Financing Receivable, before Allowance for Credit Loss			$ 4,215
Financing Receivable, Allowance for Credit Loss			0
Commercial Loan [Member]
Schedule of Investments [Line Items]
Financing Receivable, before Allowance for Credit Loss	$ 4,442		$ 4,215
Avg. Debt-Service Coverage Ratio	2.46		2.46
Financing Receivable, Allowance for Credit Loss	$ 43	$ 21	$ 0	$ 0	$ 1	$ 1
Commercial Loan [Member] \| 65% - 80%
Schedule of Investments [Line Items]
Financing Receivable, before Allowance for Credit Loss			$ 376
Avg. Debt-Service Coverage Ratio	1.89		1.53
Commercial Loan [Member] \| Less than 65%
Schedule of Investments [Line Items]
Financing Receivable, before Allowance for Credit Loss			$ 3,839
Avg. Debt-Service Coverage Ratio	2.59		2.56
Amortized Cost [Member] \| Commercial Loan [Member]
Schedule of Investments [Line Items]
Mortgage loans originated in current year	$ 401
Mortgage loans originated in year before latest fiscal year	971
Mortgage loans originated two years before latest fiscal year	698
Mortgage loans originated three years before latest fiscal year	508
Mortgage loans originated four years before latest fiscal year	287
Mortgage loans originated five or more years before latest fiscal year	1,577
Financing Receivable, before Allowance for Credit Loss	4,442
Amortized Cost [Member] \| Commercial Loan [Member] \| 65% - 80%
Schedule of Investments [Line Items]
Mortgage loans originated in current year	8
Mortgage loans originated in year before latest fiscal year	266
Mortgage loans originated two years before latest fiscal year	248
Mortgage loans originated three years before latest fiscal year	80
Mortgage loans originated four years before latest fiscal year	80
Mortgage loans originated five or more years before latest fiscal year	131
Financing Receivable, before Allowance for Credit Loss	813
Amortized Cost [Member] \| Commercial Loan [Member] \| Less than 65%
Schedule of Investments [Line Items]
Mortgage loans originated in current year	393
Mortgage loans originated in year before latest fiscal year	705
Mortgage loans originated two years before latest fiscal year	450
Mortgage loans originated three years before latest fiscal year	428
Mortgage loans originated four years before latest fiscal year	207
Mortgage loans originated five or more years before latest fiscal year	1,446
Financing Receivable, before Allowance for Credit Loss	$ 3,629
2020 \| Commercial Loan [Member]
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	2.58
2020 \| Commercial Loan [Member] \| 65% - 80%
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	2.59
2020 \| Commercial Loan [Member] \| Less than 65%
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	2.58
2019 \| Commercial Loan [Member]
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	2.45
2019 \| Commercial Loan [Member] \| 65% - 80%
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	1.85
2019 \| Commercial Loan [Member] \| Less than 65%
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	2.68
2018 \| Commercial Loan [Member]
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	2.04
2018 \| Commercial Loan [Member] \| 65% - 80%
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	2.07
2018 \| Commercial Loan [Member] \| Less than 65%
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	2.02
2017 \| Commercial Loan [Member]
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	1.84
2017 \| Commercial Loan [Member] \| 65% - 80%
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	1.63
2017 \| Commercial Loan [Member] \| Less than 65%
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	1.88
2016 \| Commercial Loan [Member]
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	2.66
2016 \| Commercial Loan [Member] \| 65% - 80%
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	1.85
2016 \| Commercial Loan [Member] \| Less than 65%
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	2.98
2015 & prior \| Commercial Loan [Member]
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	2.79
2015 & prior \| Commercial Loan [Member] \| 65% - 80%
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	1.74
2015 & prior \| Commercial Loan [Member] \| Less than 65%
Schedule of Investments [Line Items]
Avg. Debt-Service Coverage Ratio	2.89