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Financing Receivables (Credit Quality Information Text) (Details) - USD ($) $ in Millions | Mar. 31, 2019 | Dec. 31, 2018
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Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans, gross | $ 3,209 | $ 3,263
90 days or more past due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Nonperforming loans | 14 | 16
Commercial mortgage loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans, gross | $ 2,663 | $ 2,715
Percentage of commercial mortgage loans with highest risk rating | 0.00% | 0.00%
Syndicated loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans, gross | $ 546 | $ 548
Syndicated loans [Member] | 90 days or more past due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Nonperforming loans | $ 0 | $ 0

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- Definition Represents the percentage of commercial mortgage loans that the company has assigned its highest risk rating. + References No definition available. + Details
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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. + Details
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- Definition Recorded Investment in financing receivables that are past due at the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953401-111524 + Details
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- Definition Amount representing an agreement for an unconditional promise by the maker to pay the entity (holder) a definite sum of money at a future date. Such amount may include accrued interest receivable in accordance with the terms of the note. The note also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. Excludes amounts related to receivables held-for-sale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.10(3)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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