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The amount of premium (net of discount) that was originally recognized at the issuance of the mortgage loan that has yet to be amortized.

+ References

No definition available.

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This item represents the difference between the aggregate fair value and the aggregate unpaid principal balance of loans and long-term receivables (other than securities categorized as trading, available-for-sale or held-to-maturity) that have contractual principal amounts and for which the fair value option has been elected.

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

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

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

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Investments (Composition Of Current And Past Due Mortgage Loans On Real Estate) (Details) - USD ($) $ in Millions	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Mortgage Loans On Real Estate Aging [Abstract]
Allowance for credit losses	$ (130)	$ (169)	$ (203)	$ (201)	$ (271)	$ (2)
Unamortized premium (discount)	11		8
Mark-to-market gains (losses)	(3)		(5)
Total carrying value	17,633		16,681
Financial Asset Not Past Due [Member]
Mortgage Loans On Real Estate Aging [Abstract]
Carrying amount of mortgages	17,704		16,772
30 to 59 Days Past Due [Member]
Mortgage Loans On Real Estate Aging [Abstract]
Carrying amount of mortgages	15		32
60 to 89 Days Past Due [Member]
Mortgage Loans On Real Estate Aging [Abstract]
Carrying amount of mortgages	3		8
90 Or More Days Past Due [Member]
Mortgage Loans On Real Estate Aging [Abstract]
Carrying amount of mortgages	33		69
Commercial [Member]
Mortgage Loans On Real Estate Aging [Abstract]
Carrying amount of mortgages	17,001		16,152
Allowance for credit losses	(114)	(155)	(186)	(171)	(234)
Unamortized premium (discount)	(12)		(14)
Mark-to-market gains (losses)	(3)		(5)
Total carrying value	16,884		15,961
Commercial [Member] \| Financial Asset Not Past Due [Member]
Mortgage Loans On Real Estate Aging [Abstract]
Carrying amount of mortgages	17,013		16,162
Commercial [Member] \| 30 to 59 Days Past Due [Member]
Mortgage Loans On Real Estate Aging [Abstract]
Carrying amount of mortgages			4
Residential [Member]
Mortgage Loans On Real Estate Aging [Abstract]
Carrying amount of mortgages	765		737
Allowance for credit losses	(16)	$ (14)	(17)	$ (30)	$ (37)	$ (2)
Unamortized premium (discount)	23		22
Total carrying value	749		720
Residential [Member] \| Financial Asset Not Past Due [Member]
Mortgage Loans On Real Estate Aging [Abstract]
Carrying amount of mortgages	691		610
Residential [Member] \| 30 to 59 Days Past Due [Member]
Mortgage Loans On Real Estate Aging [Abstract]
Carrying amount of mortgages	15		28
Residential [Member] \| 60 to 89 Days Past Due [Member]
Mortgage Loans On Real Estate Aging [Abstract]
Carrying amount of mortgages	3		8
Residential [Member] \| 90 Or More Days Past Due [Member]
Mortgage Loans On Real Estate Aging [Abstract]
Carrying amount of mortgages	$ 33		$ 69