v3.2.0.727

Fair Value Measurements (Financial Instruments Measured At Fair Value Using Significant Unobservable Inputs) (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014 | Mar. 31, 2015 | Dec. 31, 2014 | Mar. 31, 2014 | Dec. 31, 2013
Schedule Of Fair Value Measurements [Line Items] |  |  |  |  |  |  |  |  |  |
Document Period End Date |  |  |  |  | Jun. 30, 2015 |  |  |  |  |
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date, Assets |  |  |  |  |  | $ 0 |  |  |  |
Equity Securities [Member] |  |  |  |  |  |  |  |  |  |
Schedule Of Fair Value Measurements [Line Items] |  |  |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 |  | $ 0 | $ 0 |  | $ 0 | 0 |  |  |  |
Balance- Beginning of Period, Assets |  | 2 | 2 |  | 2 | 4 |  |  |  |
Transfers out of Level 3, Assets |  | 0 | 0 |  | 0 | (2) |  |  |  |
Change in Net Unrealized Gains (Losses) included in OCI, Assets |  | 0 | 0 |  | 0 | 1 |  |  |  |
Purchases, Assets |  | 1 | 0 |  | 1 | 1 |  |  |  |
Sales, Assets |  | 0 | 0 |  | 0 | (2) |  |  |  |
Settlements, Assets |  | 0 | 0 |  | 0 |  |  |  |  |
Balance-End of Period, Assets |  | 2 | 2 |  | 2 | 2 |  |  |  |
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date, Assets |  | (1) | 0 |  | (1) |  |  |  |  |
Equity Securities [Member] | Gain (Loss) on Investments [Member] |  |  |  |  |  |  |  |  |  |
Schedule Of Fair Value Measurements [Line Items] |  |  |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | (1) | 0 |  | (1) | 0 |  |  |  |
Equity Securities [Member] | Other Income (Expense) [Member] |  |  |  |  |  |  |  |  |  |
Schedule Of Fair Value Measurements [Line Items] |  |  |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  |  | 0 |  | 0 | 0 |  |  |  |
Short-term Investments [Member] |  |  |  |  |  |  |  |  |  |
Schedule Of Fair Value Measurements [Line Items] |  |  |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 |  |  |  |  |  | 0 |  |  |  |
Balance- Beginning of Period, Assets |  |  |  |  |  | 7 |  |  |  |
Transfers out of Level 3, Assets |  |  |  |  |  | (7) |  |  |  |
Change in Net Unrealized Gains (Losses) included in OCI, Assets |  |  |  |  |  | 0 |  |  |  |
Purchases, Assets |  |  |  |  |  | 0 |  |  |  |
Sales, Assets |  |  |  |  |  | 0 |  |  |  |
Balance-End of Period, Assets |  |  | 0 |  |  | 0 |  |  |  |
Short-term Investments [Member] | Gain (Loss) on Investments [Member] |  |  |  |  |  |  |  |  |  |
Schedule Of Fair Value Measurements [Line Items] |  |  |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  |  |  |  |  | 0 |  |  |  |
Short-term Investments [Member] | Other Income (Expense) [Member] |  |  |  |  |  |  |  |  |  |
Schedule Of Fair Value Measurements [Line Items] |  |  |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 0 |  |  |  | 0 |  |  |  |
Other Long-term Investments [Member] |  |  |  |  |  |  |  |  |  |
Schedule Of Fair Value Measurements [Line Items] |  |  |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 |  | 0 | 0 |  | 0 |  |  |  |  |
Balance- Beginning of Period, Assets |  | 2,789 | 2,611 |  | 2,719 | 2,440 |  |  |  |
Transfers out of Level 3, Assets |  | 0 | 0 |  | 0 |  |  |  |  |
Change in Net Unrealized Gains (Losses) included in OCI, Assets |  | 6 | 7 |  | (14) | 48 |  |  |  |
Purchases, Assets |  | 52 | 109 |  | 177 | 248 |  |  |  |
Sales, Assets |  | (25) | (2) |  | (25) | (3) |  |  |  |
Settlements, Assets |  | (172) | (125) |  | (229) | (194) |  |  |  |
Balance-End of Period, Assets |  | 2,679 | 2,640 |  | 2,679 | 2,640 |  |  |  |
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date, Assets |  | 0 | (3) |  | 0 | (3) |  |  |  |
Other Long-term Investments [Member] | Gain (Loss) on Investments [Member] |  |  |  |  |  |  |  |  |  |
Schedule Of Fair Value Measurements [Line Items] |  |  |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 11 | (3) |  | 11 | (3) |  |  |  |
Other Long-term Investments [Member] | Other Income (Expense) [Member] |  |  |  |  |  |  |  |  |  |
Schedule Of Fair Value Measurements [Line Items] |  |  |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 18 | 43 |  | 40 | 104 |  |  |  |
Other Derivative Instruments Fair Value [Member] |  |  |  |  |  |  |  |  |  |
Schedule Of Fair Value Measurements [Line Items] |  |  |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value |  | 3 |  |  | 3 |  | $ 4 | $ 4 |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 |  |  |  |  | 0 |  |  |  |  |
Transfers out of Level 3, Assets |  | 0 |  |  |  |  |  |  |  |
Change in Net Unrealized Gains (Losses) included in OCI, Assets |  | 0 |  |  |  |  |  |  |  |
Purchases, Assets |  | 0 |  |  |  |  |  |  |  |
Sales, Assets |  | 0 |  |  |  |  |  |  |  |
Settlements, Assets |  | 0 |  |  |  |  |  |  |  |
Balance-End of Period, Assets |  | 3 |  |  | 3 |  |  |  |  |
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date, Liabilities |  | (1) |  |  |  |  |  |  |  |
Other Derivative Instruments Fair Value [Member] | Gain (Loss) on Investments [Member] |  |  |  |  |  |  |  |  |  |
Schedule Of Fair Value Measurements [Line Items] |  |  |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings |  | (1) |  |  | (1) |  |  |  |  |
Other Derivative Instruments Fair Value [Member] | Other Income (Expense) [Member] |  |  |  |  |  |  |  |  |  |
Schedule Of Fair Value Measurements [Line Items] |  |  |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings |  | 0 |  |  | 0 |  |  |  |  |
Available-for-sale Securities [Member] | Foreign [Member] |  |  |  |  |  |  |  |  |  |
Schedule Of Fair Value Measurements [Line Items] |  |  |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 |  | 28 | 2 |  | 28 | 2 |  |  |  |
Balance- Beginning of Period, Assets |  | 22 | 26 |  | 22 | 44 |  |  |  |
Transfers out of Level 3, Assets |  | 0 | (16) |  | 0 | (34) |  |  |  |
Change in Net Unrealized Gains (Losses) included in OCI, Assets |  | (2) | 0 |  | (2) | (1) |  |  |  |
Purchases, Assets |  | 8 | 0 |  | 9 | 2 |  |  |  |
Sales, Assets |  | 0 | (1) |  | (1) | (2) |  |  |  |
Settlements, Assets |  | 0 | 0 |  | 0 | 0 |  |  |  |
Balance-End of Period, Assets |  | 56 | 12 |  | 56 | 12 |  |  |  |
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date, Assets |  | 0 | 0 |  | 0 |  |  |  |  |
Available-for-sale Securities [Member] | Foreign [Member] | Gain (Loss) on Investments [Member] |  |  |  |  |  |  |  |  |  |
Schedule Of Fair Value Measurements [Line Items] |  |  |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 0 | 1 |  | 0 | 1 |  |  |  |
Available-for-sale Securities [Member] | Foreign [Member] | Other Income (Expense) [Member] |  |  |  |  |  |  |  |  |  |
Schedule Of Fair Value Measurements [Line Items] |  |  |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 0 | 0 |  | 0 | 0 |  |  |  |
Available-for-sale Securities [Member] | Corporate Debt Securities [Member] |  |  |  |  |  |  |  |  |  |
Schedule Of Fair Value Measurements [Line Items] |  |  |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 |  | 12 | 26 |  | 13 | 30 |  |  |  |
Balance- Beginning of Period, Assets |  | 167 | 151 |  | 187 | 166 |  |  |  |
Transfers out of Level 3, Assets |  | 0 | 0 |  | 0 | (22) |  |  |  |
Change in Net Unrealized Gains (Losses) included in OCI, Assets |  | (3) | 2 |  | 0 | 2 |  |  |  |
Purchases, Assets |  | 8 | 30 |  | 16 | 45 |  |  |  |
Sales, Assets |  | (2) | (2) |  | (5) | (8) |  |  |  |
Settlements, Assets |  | (15) | (3) |  | (41) | (9) |  |  |  |
Balance-End of Period, Assets |  | 167 | 204 |  | 167 | 204 |  |  |  |
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date, Assets |  | 0 | 0 |  | (2) |  |  |  |  |
Available-for-sale Securities [Member] | Corporate Debt Securities [Member] | Gain (Loss) on Investments [Member] |  |  |  |  |  |  |  |  |  |
Schedule Of Fair Value Measurements [Line Items] |  |  |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 0 | 0 |  | (3) | 0 |  |  |  |
Available-for-sale Securities [Member] | Corporate Debt Securities [Member] | Other Income (Expense) [Member] |  |  |  |  |  |  |  |  |  |
Schedule Of Fair Value Measurements [Line Items] |  |  |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 0 | 0 |  | 0 | 0 |  |  |  |
Available-for-sale Securities [Member] | Collateralized Mortgage Backed Securities [Member] |  |  |  |  |  |  |  |  |  |
Schedule Of Fair Value Measurements [Line Items] |  |  |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 |  | 0 | 0 |  | 0 | 0 |  |  |  |
Balance- Beginning of Period, Assets |  | 33 | 8 |  | 15 | 8 |  |  |  |
Transfers out of Level 3, Assets |  | 0 | 0 |  | 0 | 0 |  |  |  |
Change in Net Unrealized Gains (Losses) included in OCI, Assets |  | 0 | 0 |  | 0 | 0 |  |  |  |
Purchases, Assets |  | 23 | 0 |  | 41 | 0 |  |  |  |
Sales, Assets |  | 0 | 0 |  | 0 | 0 |  |  |  |
Settlements, Assets |  | (1) | (1) |  | (1) | (1) |  |  |  |
Balance-End of Period, Assets |  | 55 | 7 |  | 55 | 7 |  |  |  |
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date, Assets |  | 0 | 0 |  | 0 |  |  |  |  |
Available-for-sale Securities [Member] | Collateralized Mortgage Backed Securities [Member] | Gain (Loss) on Investments [Member] |  |  |  |  |  |  |  |  |  |
Schedule Of Fair Value Measurements [Line Items] |  |  |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 0 | 0 |  | 0 | 0 |  |  |  |
Available-for-sale Securities [Member] | Collateralized Mortgage Backed Securities [Member] | Other Income (Expense) [Member] |  |  |  |  |  |  |  |  |  |
Schedule Of Fair Value Measurements [Line Items] |  |  |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 0 | 0 |  | 0 | 0 |  |  |  |
Guaranteed Living Benefit [Member] |  |  |  |  |  |  |  |  |  |
Schedule Of Fair Value Measurements [Line Items] |  |  |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value | [1] | 347 | 241 |  | 347 | 241 | $ 451 | 406 | $ 243 | $ 193
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 |  | 0 |  |  | 0 | 0 |  |  |  |
Transfers out of Level 3, Assets |  | 0 |  |  | 0 | 0 |  |  |  |
Change in Net Unrealized Gains (Losses) included in OCI, Assets |  | 0 |  |  | 0 | 0 |  |  |  |
Purchases, Assets |  | 0 |  |  | 0 | 0 |  |  |  |
Sales, Assets |  | 0 |  |  | 0 | 0 |  |  |  |
Settlements, Assets |  | 0 |  |  | 0 | 0 |  |  |  |
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date, Liabilities |  | (104) | (2) | [1] | (59) | 48 |  |  |  |
Reported liabilities |  | 615 | 486 |  | 615 | 486 |  | $ 663 | $ 483 |
Guaranteed Living Benefit [Member] | Gain (Loss) on Investments [Member] |  |  |  |  |  |  |  |  |  |
Schedule Of Fair Value Measurements [Line Items] |  |  |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings |  | (104) | (2) |  | (59) | 48 |  |  |  |
Guaranteed Living Benefit [Member] | Other Income (Expense) [Member] |  |  |  |  |  |  |  |  |  |
Schedule Of Fair Value Measurements [Line Items] |  |  |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings |  | $ 0 | $ 0 |  | $ 0 | 0 |  |  |  |
Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |  |  |
Schedule Of Fair Value Measurements [Line Items] |  |  |  |  |  |  |  |  |  |
Settlements, Assets |  |  |  |  |  | $ 0 |  |  |  |
[1] | Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value. Excluded from the table above is the portion of the GLB liability classified as Future policy benefits in the consolidated balance sheets. Refer to Note 5 for additional information.

X
- Definition For financial instruments held at the balance sheet date, this represents the net realized gains/losses attributable to changes in fair value of financial instruments reflected in assets and carried or disclosed at fair value using significant unobservable inputs. + References No definition available. + Details
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- Definition For financial instruments held at the balance sheet date, this represents the net realized gains/losses attributable to changes in fair value of finacial instruments reflected in liabilities and carried or disclosed at fair value using significant unobservable inputs. + References No definition available. + Details
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- Definition Schedule Of Fair Value Measurements [Line Items] + References No definition available. + Details
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- Definition The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD. + References No definition available. + Details
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- Definition Amount of gain (loss) recognized in the income statement for financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition Amount of gain (loss) recognized in other comprehensive income (loss) for financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1a) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition Amount of sale of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition Amount of settlement of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition Amount of transfer of financial instrument classified as an asset into level 3 of the fair value hierarchy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition Amount of transfers of financial instrument classified as an asset out of level 3 of the fair value hierarchy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition Amount of gain (loss) recognized on the income statement for financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition Sum of the amount of expected guaranteed benefits in excess of the projected account balances for minimum guaranteed benefit contracts, as of the balance sheet date, net of reinsurance recoverables, for all guaranteed benefit types. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 80 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6484115&loc=d3e19393-158473 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 20 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6588021&loc=d3e7104-158389 + Details
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