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

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 principal due on delinquent mortgage loan within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 12
-Paragraph Column H
-Subsection 29

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 948
-SubTopic 310
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014

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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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- Definition

Amount of increase (decrease) of allowance reserve for credit loss.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
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-Paragraph 1
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- Definition

The reserve to cover probable credit losses related to specifically identified fixed maturity real estate loans as well as probable credit losses inherent in the remainder of that loan portfolio.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 310
-Section 45
-Paragraph 4
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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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- Definition

Amount of transferred financial assets in which the transferor has continuing involvement with the assets underlying the transaction that have been derecognized. Continuing involvement includes, but is not limited to, servicing, recourse, and restrictions on transferor's interests in transferred financial assets.

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-SubTopic 20
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- Definition

The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings.

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- Definition

Amount of investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section S99
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Amount of transferred financial assets in which the transferor has continuing involvement with the assets underlying the transaction that continue to be recognized in the statement of financial position. Includes, but is not limited to, servicing, recourse, and restrictions on transferor's interests in transferred financial assets.

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- Definition

Fair value of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

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Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.

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Investments - Investments - Mortgage Loans- Valuation Allowance Activity (Details) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans	$ 3,637,000,000		$ 3,704,000,000
Mortgage Loans on Real Estate, Other Additions	$ 0
Current Weighted Average Loan to Value Ratio of Commercial Mortgage Loan	52.00%
Original Weighted Average Loan to Value Ratio of Commercial Mortgage loan	61.00%
Loans serviced	$ 5,900,000,000		6,000,000,000.0
Loans serviced on behalf of third parties	3,500,000,000		3,600,000,000
Servicing rights	0		0
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	(1,000,000)	$ (1,000,000)
(Additions)/Reversals	0	0
Deductions	0	0
Ending balance	(1,000,000)	$ (1,000,000)
Investments
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans serviced on behalf of third parties, retained and reported as assets	2,400,000,000		2,400,000,000
Held-for-sale
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans	0		0
SEC Schedule, 12-09, Allowance, Loan and Lease Loss [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans	23,000,000		23,000,000
Commercial Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans	3,637,000,000		3,704,000,000
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	(1,000,000)
Ending balance	(1,000,000)
Amortized Cost [Member] \| Commercial Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans	3,600,000,000		3,700,000,000
Commercial Loan [Member] \| Mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans past due by 90 days or more	$ 0
Commercial Loan [Member] \| Mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans past due by 90 days or more			$ 0