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Financial Instruments Derivatives Not Designated as Hedging, Fair Value Table (Details) - USD ($) $ in Millions | Sep. 30, 2015 | Dec. 31, 2014
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Not Designated as Hedging Instrument [Member] | Other assets [Member] |  |  |
Derivatives Not Designated as Hedging Instruments, Fair Value [Line Items] |  |  |
Asset Derivatives, Gross | [1] | $ 1,047 | $ 60
Asset Derivatives, Netting across contract types | [1],[2] | (269) | (10)
Asset Derivatives, Total | [1],[2] | 778 | 50
Not Designated as Hedging Instrument [Member] | Accrued expenses and other liabilities [Member] |  |  |
Derivatives Not Designated as Hedging Instruments, Fair Value [Line Items] |  |  |
Liability Derivatives, Gross | [3] | 361 | 624
Liability Derivatives, Netting across contract types | [2],[3] | (269) | (10)
Derivative contracts at fair value (liability) | [2],[3] | 92 | 614
Not Designated as Hedging Instrument [Member] | Equity contracts | Other assets [Member] |  |  |
Derivatives Not Designated as Hedging Instruments, Fair Value [Line Items] |  |  |
Asset Derivatives, Gross | [1] | 627 | 0
Not Designated as Hedging Instrument [Member] | Equity contracts | Accrued expenses and other liabilities [Member] |  |  |
Derivatives Not Designated as Hedging Instruments, Fair Value [Line Items] |  |  |
Liability Derivatives, Gross | [3] | 315 | 539
Not Designated as Hedging Instrument [Member] | Foreign exchange contracts | Other assets [Member] |  |  |
Derivatives Not Designated as Hedging Instruments, Fair Value [Line Items] |  |  |
Asset Derivatives, Gross | [1] | 0 | 11
Not Designated as Hedging Instrument [Member] | Foreign exchange contracts | Accrued expenses and other liabilities [Member] |  |  |
Derivatives Not Designated as Hedging Instruments, Fair Value [Line Items] |  |  |
Liability Derivatives, Gross | [3] | 1 | 0
Not Designated as Hedging Instrument [Member] | Credit contracts | Other assets [Member] |  |  |
Derivatives Not Designated as Hedging Instruments, Fair Value [Line Items] |  |  |
Asset Derivatives, Gross | [1] | 346 | 1
Not Designated as Hedging Instrument [Member] | Credit contracts | Accrued expenses and other liabilities [Member] |  |  |
Derivatives Not Designated as Hedging Instruments, Fair Value [Line Items] |  |  |
Liability Derivatives, Gross | [3] | 45 | 85
Not Designated as Hedging Instrument [Member] | Interest rate swap contracts | Other assets [Member] |  |  |
Derivatives Not Designated as Hedging Instruments, Fair Value [Line Items] |  |  |
Asset Derivatives, Gross | [1] | 0 | 1
Not Designated as Hedging Instrument [Member] | Interest rate swap contracts | Accrued expenses and other liabilities [Member] |  |  |
Derivatives Not Designated as Hedging Instruments, Fair Value [Line Items] |  |  |
Liability Derivatives, Gross | [3] | 0 | 0
Not Designated as Hedging Instrument [Member] | Commodity contracts | Other assets [Member] |  |  |
Derivatives Not Designated as Hedging Instruments, Fair Value [Line Items] |  |  |
Asset Derivatives, Gross | [1] | 74 | 47
Not Designated as Hedging Instrument [Member] | Commodity contracts | Accrued expenses and other liabilities [Member] |  |  |
Derivatives Not Designated as Hedging Instruments, Fair Value [Line Items] |  |  |
Liability Derivatives, Gross | [3] | 0 | 0
Investment Funds [Member] | Investment Segment [Member] |  |  |
Derivatives Not Designated as Hedging Instruments, Fair Value [Line Items] |  |  |
Cash collateral posted for derivative positions |  | 905 | 1,200
Swap [Member] | Investment Funds [Member] | Investment Segment [Member] | Not Designated as Hedging Instrument [Member] | Equity contracts | Investments [Member] |  |  |
Derivatives Not Designated as Hedging Instruments, Fair Value [Line Items] |  |  |
Derivative Asset, Fair Value, Amount Not Offset Against Collateral |  | $ 16 | $ 17
[1] | Net asset derivatives are located within other assets in our condensed consolidated balance sheets.
[2] | Excludes netting of cash collateral received and posted. The total collateral posted at September 30, 2015 and December 31, 2014 was approximately $0.9 billion and $1.2 billion, respectively, across all counterparties.
[3] | Net liability derivatives are located within accrued expenses and other liabilities in our condensed consolidated balance sheets.

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- Definition Derivatives Not Designated as Hedging Instruments, Fair Value [Line Items] + References No definition available. + Details
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- Definition The aggregate fair value of assets that are already posted, at the end of the reporting period, as collateral for derivative instruments with credit-risk-related contingent features. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4H -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624258-113959 + 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=49121117&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=49121117&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=51825145&loc=SL20226008-175313 + Details
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