v3.8.0.1

Derivative Instruments (Narrative) (Details) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Sep. 14, 2017 | Dec. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract] |  |  |  |
Total derivative assets | $ 1,205 | $ 1,367 |  |
Total derivative liabilities | 643 | 345 |  |
Anticipated pre-tax loss reclassified from accumulated other comprehensive income (loss) to earnings | $ 157 |  |  |
Maximum Length of Time Hedged in Cash Flow Hedge (future cash flows) | 5 years |  |  |
Maximum Length of Time Hedged in Cash Flow Hedges (existing cash flows) | 40 years |  |  |
Net investment hedges income (loss) before taxes | $ 526 | 536 |  | $ 541
Derivative [Line Items] |  |  |  |
Notional of credit derivative | 0 | 500 |  |
Fair value of credit derivative liability | 0 | 17 |  |
Credit protection derivatives outstanding notional amounts | 178 | 256 |  |
Purchased credit protection, Liability | 5 | 8 |  |
Single Name |  |  |  |
Derivative [Line Items] |  |  |  |
Credit Derivative, Maximum Exposure, Undiscounted | 114 | 112 |  |
Fair value asset (liability) | $ 2 | 1 |  |
Credit Derivatives Written Max Length Of Maturities (less than) | 3 years |  |  |
Single Name | NAIC 1 |  |  |  |
Derivative [Line Items] |  |  |  |
Credit Derivative, Maximum Exposure, Undiscounted | $ 36 |  |  |
Single Name | NAIC 2 |  |  |  |
Derivative [Line Items] |  |  |  |
Credit Derivative, Maximum Exposure, Undiscounted | 62 |  |  |
Single Name | NAIC 3 |  |  |  |
Derivative [Line Items] |  |  |  |
Credit Derivative, Maximum Exposure, Undiscounted | 5 |  |  |
Single Name | NAIC 4 |  |  |  |
Derivative [Line Items] |  |  |  |
Credit Derivative, Maximum Exposure, Undiscounted | 2 |  |  |
Single Name | NAIC 5 |  |  |  |
Derivative [Line Items] |  |  |  |
Credit Derivative, Maximum Exposure, Undiscounted | 5 |  |  |
Single Name | NAIC 6 |  |  |  |
Derivative [Line Items] |  |  |  |
Credit Derivative, Maximum Exposure, Undiscounted | 4 |  |  |
Credit Default Index |  |  |  |
Derivative [Line Items] |  |  |  |
Credit Derivative, Maximum Exposure, Undiscounted | 1,022 | 50 |  |
Fair value asset (liability) | $ 18 | $ (1) |  |
Credit Derivatives Written Max Length Of Maturities (less than) | 30 years |  |  |
Credit Default Index | NAIC 1 |  |  |  |
Derivative [Line Items] |  |  |  |
Credit Derivative, Maximum Exposure, Undiscounted | $ 52 |  |  |
Credit Default Index | NAIC 4 |  |  |  |
Derivative [Line Items] |  |  |  |
Credit Derivative, Maximum Exposure, Undiscounted | $ 970 |  |  |
Subordinated Debt [Member] | Subsidiaries | Other Credit Derivatives [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Termination Loans |  |  | $ 12 |

X
- Definition Cumulative adjustment resulting from gains and losses on foreign currency derivatives that are designated as, and are effective as, hedges of a net investment in a foreign entity, commencing as of the designation date. Adjustment reported in equity as part of accumulated other comprehensive income before taxes. + References No definition available. + Details
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- Definition Discloses the fair value of the credit derivative written on a Surplus Note issued by the Company as of the date of the statement of financial position. + References No definition available. + Details
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- Definition Represents the maximum potential amount of future payments (undiscounted) the Company could be required to make under this credit derivative written on a Surplus Note issued by the Company before reduction for potential recoveries under recourse or collateralization provision in the credit derivative. + References No definition available. + Details
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- Definition Describes in the context of the estimate of potential recoveries, any purchased credit protection with identical underlying(s). + References No definition available. + Details
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- Definition Discloses the maximum length of time for which existing variable cash flows are hedged. + References No definition available. + Details
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- Definition The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=35736893&loc=d3e80748-113994 + Details
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- Definition Maximum potential amount of future undiscounted payments that could be required under the credit derivative, before reduction for potential recoveries under recourse or collateralization provisions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4K -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5708775-113959 + Details
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- Definition Amount of purchased credit protection expected to cover future payments under the credit risk derivative. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4K -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5708775-113959 + Details
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- Definition Fair value of credit risk derivative asset after deduction of credit risk derivative liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4K -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5708775-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13495-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13433-108611 + Details
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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13433-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13495-108611 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=82849420&loc=SL20226008-175313 + Details
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- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=82849420&loc=SL20226008-175313 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13495-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13433-108611 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 + 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 Maximum length of time over which the entity is hedging its exposure to the variability in future cash flows for forecasted transactions, excluding those forecasted transactions related to the payment of variable interest on existing financial instruments, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=35736893&loc=d3e80748-113994 + Details
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- Definition Definite liabilities to third parties under a termination loan agreement, whether or not guaranteed in whole or in part by the government. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 912 -SubTopic 405 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=68073528&loc=d3e56288-109415 + Details
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