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Fair Value Measurements Changes in Fair Value Level 3 (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Other Segments and Holding Company [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value | $ 228 | $ 154 | $ 138
Purchases | 100 | 0 |
Transfers (out) in | (47) | 3 |
Realized and unrealized losses | 21 | (97) |
Distribution-in-kind | 0 |  |
Investment Segment [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value | 55 | 75 | 287
Realized and unrealized losses | (20) | (100) |
Gross proceeds | 0 | (2) |
Distribution-in-kind | 0 | (110) |
Fair Value, Inputs, Level 3 [Member] | Recurring measurement [Member] | Railcar and Food Packaging [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value | 21 | 21 | 21
Realized/unrealized (losses) gains, net | 0 | 1 |
Purchases and settlements, net | 0 | (1) |
Non-U.S. Plans | Fair Value, Inputs, Level 3 [Member] | Recurring measurement [Member] | Automotive Segment [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value | 40 | 41 | 44
Gross proceeds | (4) | (5) |
Foreign currency exchange rate movements | (4) | (6) |
Realized/unrealized (losses) gains, net | 1 | 2 |
Purchases and settlements, net | 6 | 6 |
United States Plans | Fair Value, Inputs, Level 3 [Member] | Recurring measurement [Member] | Automotive Segment [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value | 86 | 91 | $ 85
Gross proceeds | 0 | (47) |
Realized/unrealized (losses) gains, net | (5) | 6 |
Purchases and settlements, net | $ 0 | $ 47 |

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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 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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