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Fair Value Measurements Fair Value Measurement (Details) - USD ($) | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | --- | ---
Assets |  |  |  |
Investments |  | $ 9,579,000,000 | $ 15,028,000,000 |
Derivative contracts, at fair value(1) | [1] | 23,000,000 | 259,000,000 |
Assets, Fair Value Disclosure |  | 9,602,000,000 | 15,287,000,000 |
Liabilities |  |  |  |
Securities sold, not yet purchased, at fair value |  | 1,139,000,000 | 794,000,000 |
Other Liabilities, Fair Value Disclosure |  | 187,000,000 | 3,000,000 |
Derivative contracts, at fair value(2) | [2] | 1,139,000,000 | 36,000,000 |
Financial and Nonfinancial Liabilities, Fair Value Disclosure |  | 2,465,000,000 | 833,000,000 |
Level 1 |  |  |  |
Assets |  |  |  |
Investments |  | 9,033,000,000 | 14,447,000,000 |
Derivative contracts, at fair value(1) | [1] | 0 | 0 |
Assets, Fair Value Disclosure |  | 9,033,000,000 | 14,447,000,000 |
Liabilities |  |  |  |
Securities sold, not yet purchased, at fair value |  | 1,087,000,000 | 794,000,000 |
Other Liabilities, Fair Value Disclosure |  | 0 | 0 |
Derivative contracts, at fair value(2) | [2] | 0 | 0 |
Financial and Nonfinancial Liabilities, Fair Value Disclosure |  | 1,087,000,000 | 794,000,000 |
Level 2 |  |  |  |
Assets |  |  |  |
Investments |  | 306,000,000 | 289,000,000 |
Derivative contracts, at fair value(1) | [1] | 23,000,000 | 259,000,000 |
Assets, Fair Value Disclosure |  | 329,000,000 | 548,000,000 |
Liabilities |  |  |  |
Securities sold, not yet purchased, at fair value |  | 52,000,000 | 0 |
Other Liabilities, Fair Value Disclosure |  | 187,000,000 | 3,000,000 |
Derivative contracts, at fair value(2) | [2] | 1,139,000,000 | 36,000,000 |
Financial and Nonfinancial Liabilities, Fair Value Disclosure |  | 1,378,000,000 | 39,000,000 |
Level 3 |  |  |  |
Assets |  |  |  |
Investments |  | 240,000,000 | 292,000,000 |
Derivative contracts, at fair value(1) | [1] | 0 | 0 |
Assets, Fair Value Disclosure |  | 240,000,000 | 292,000,000 |
Liabilities |  |  |  |
Securities sold, not yet purchased, at fair value |  | 0 | 0 |
Other Liabilities, Fair Value Disclosure |  | 0 | 0 |
Derivative contracts, at fair value(2) | [2] | 0 | 0 |
Financial and Nonfinancial Liabilities, Fair Value Disclosure |  | 0 | 0 |
Automotive Segment |  |  |  |
Liabilities |  |  |  |
Securities sold, not yet purchased, at fair value |  | 0 | 0 |
Railcar and Food Packaging | Recurring measurement |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 123,000,000 | 129,000,000 |
Railcar and Food Packaging | Recurring measurement | Level 1 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 81,000,000 | 68,000,000 |
Railcar and Food Packaging | Recurring measurement | Level 2 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 33,000,000 | 40,000,000 |
Railcar and Food Packaging | Recurring measurement | Level 3 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 9,000,000 | 21,000,000 |
United States Plans | Automotive Segment |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 856,000,000 | 870,000,000 | $ 912,000,000
United States Plans | Automotive Segment | Recurring measurement |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 856,000,000 | 870,000,000 |
United States Plans | Automotive Segment | Recurring measurement | Level 1 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 786,000,000 | 749,000,000 |
United States Plans | Automotive Segment | Recurring measurement | Level 2 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 38,000,000 | 35,000,000 |
United States Plans | Automotive Segment | Recurring measurement | Level 3 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 32,000,000 | 86,000,000 |
Non-U.S. Plans | Automotive Segment |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 63,000,000 | 57,000,000 | $ 54,000,000
Non-U.S. Plans | Automotive Segment | Recurring measurement |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 63,000,000 | 57,000,000 |
Non-U.S. Plans | Automotive Segment | Recurring measurement | Level 1 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 21,000,000 | 15,000,000 |
Non-U.S. Plans | Automotive Segment | Recurring measurement | Level 2 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 0 | 2,000,000 |
Non-U.S. Plans | Automotive Segment | Recurring measurement | Level 3 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 42,000,000 | 40,000,000 |
Cash and cash equivalents | Railcar and Food Packaging | Recurring measurement |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 5,000,000 | 6,000,000 |
Cash and cash equivalents | Railcar and Food Packaging | Recurring measurement | Level 1 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 4,000,000 | 5,000,000 |
Cash and cash equivalents | Railcar and Food Packaging | Recurring measurement | Level 2 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 1,000,000 | 1,000,000 |
Cash and cash equivalents | Railcar and Food Packaging | Recurring measurement | Level 3 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Cash and cash equivalents | United States Plans | Automotive Segment | Recurring measurement |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 30,000,000 | 26,000,000 |
Cash and cash equivalents | United States Plans | Automotive Segment | Recurring measurement | Level 1 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 30,000,000 | 26,000,000 |
Cash and cash equivalents | United States Plans | Automotive Segment | Recurring measurement | Level 2 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Cash and cash equivalents | United States Plans | Automotive Segment | Recurring measurement | Level 3 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Equity securities | United States Plans | Automotive Segment | Recurring measurement |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 346,000,000 | 310,000,000 |
Equity securities | United States Plans | Automotive Segment | Recurring measurement | Level 1 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 346,000,000 | 310,000,000 |
Equity securities | United States Plans | Automotive Segment | Recurring measurement | Level 2 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Equity securities | United States Plans | Automotive Segment | Recurring measurement | Level 3 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Fixed income securities | Railcar and Food Packaging | Recurring measurement |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 20,000,000 | 19,000,000 |
Fixed income securities | Railcar and Food Packaging | Recurring measurement | Level 1 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 18,000,000 | 7,000,000 |
Fixed income securities | Railcar and Food Packaging | Recurring measurement | Level 2 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 2,000,000 | 12,000,000 |
Fixed income securities | Railcar and Food Packaging | Recurring measurement | Level 3 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Fixed income securities | United States Plans | Automotive Segment | Recurring measurement |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 154,000,000 | 149,000,000 |
Fixed income securities | United States Plans | Automotive Segment | Recurring measurement | Level 1 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 154,000,000 | 149,000,000 |
Fixed income securities | United States Plans | Automotive Segment | Recurring measurement | Level 2 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Fixed income securities | United States Plans | Automotive Segment | Recurring measurement | Level 3 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Fixed income securities | Non-U.S. Plans | Automotive Segment | Recurring measurement |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 19,000,000 | 13,000,000 |
Fixed income securities | Non-U.S. Plans | Automotive Segment | Recurring measurement | Level 1 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 19,000,000 | 13,000,000 |
Fixed income securities | Non-U.S. Plans | Automotive Segment | Recurring measurement | Level 2 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Fixed income securities | Non-U.S. Plans | Automotive Segment | Recurring measurement | Level 3 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Real estate and other | United States Plans | Automotive Segment | Recurring measurement |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 41,000,000 | 27,000,000 |
Real estate and other | United States Plans | Automotive Segment | Recurring measurement | Level 1 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 41,000,000 | 27,000,000 |
Real estate and other | United States Plans | Automotive Segment | Recurring measurement | Level 2 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Real estate and other | United States Plans | Automotive Segment | Recurring measurement | Level 3 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Equity securities | Railcar and Food Packaging | Recurring measurement |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 81,000,000 | 78,000,000 |
Equity securities | Railcar and Food Packaging | Recurring measurement | Level 1 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 54,000,000 | 51,000,000 |
Equity securities | Railcar and Food Packaging | Recurring measurement | Level 2 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 27,000,000 | 27,000,000 |
Equity securities | Railcar and Food Packaging | Recurring measurement | Level 3 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Equity securities | United States Plans | Automotive Segment | Recurring measurement |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 204,000,000 | 220,000,000 |
Equity securities | United States Plans | Automotive Segment | Recurring measurement | Level 1 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 204,000,000 | 220,000,000 |
Equity securities | United States Plans | Automotive Segment | Recurring measurement | Level 2 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Equity securities | United States Plans | Automotive Segment | Recurring measurement | Level 3 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Equity securities | Non-U.S. Plans | Automotive Segment | Recurring measurement |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 2,000,000 | 2,000,000 |
Equity securities | Non-U.S. Plans | Automotive Segment | Recurring measurement | Level 1 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 2,000,000 | 2,000,000 |
Equity securities | Non-U.S. Plans | Automotive Segment | Recurring measurement | Level 2 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Equity securities | Non-U.S. Plans | Automotive Segment | Recurring measurement | Level 3 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Corporate and other | United States Plans | Automotive Segment | Recurring measurement |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 21,000,000 | 22,000,000 |
Corporate and other | United States Plans | Automotive Segment | Recurring measurement | Level 1 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Corporate and other | United States Plans | Automotive Segment | Recurring measurement | Level 2 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 21,000,000 | 22,000,000 |
Corporate and other | United States Plans | Automotive Segment | Recurring measurement | Level 3 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Government | United States Plans | Automotive Segment | Recurring measurement |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 28,000,000 | 30,000,000 |
Government | United States Plans | Automotive Segment | Recurring measurement | Level 1 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 11,000,000 | 17,000,000 |
Government | United States Plans | Automotive Segment | Recurring measurement | Level 2 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 17,000,000 | 13,000,000 |
Government | United States Plans | Automotive Segment | Recurring measurement | Level 3 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Hedge funds | United States Plans | Automotive Segment | Recurring measurement |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 32,000,000 | 86,000,000 |
Hedge funds | United States Plans | Automotive Segment | Recurring measurement | Level 1 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Hedge funds | United States Plans | Automotive Segment | Recurring measurement | Level 2 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Hedge funds | United States Plans | Automotive Segment | Recurring measurement | Level 3 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 32,000,000 | 86,000,000 |
Insurance contracts | Non-U.S. Plans | Automotive Segment | Recurring measurement |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 42,000,000 | 40,000,000 |
Insurance contracts | Non-U.S. Plans | Automotive Segment | Recurring measurement | Level 1 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Insurance contracts | Non-U.S. Plans | Automotive Segment | Recurring measurement | Level 2 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Insurance contracts | Non-U.S. Plans | Automotive Segment | Recurring measurement | Level 3 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 42,000,000 | 40,000,000 |
Corporate bonds | Non-U.S. Plans | Automotive Segment | Recurring measurement |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 0 | 2,000,000 |
Corporate bonds | Non-U.S. Plans | Automotive Segment | Recurring measurement | Level 1 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Corporate bonds | Non-U.S. Plans | Automotive Segment | Recurring measurement | Level 2 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 0 | 2,000,000 |
Corporate bonds | Non-U.S. Plans | Automotive Segment | Recurring measurement | Level 3 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 0 | 0 |
Other securities | Railcar and Food Packaging | Recurring measurement |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 17,000,000 | 26,000,000 |
Other securities | Railcar and Food Packaging | Recurring measurement | Level 1 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 5,000,000 | 5,000,000 |
Other securities | Railcar and Food Packaging | Recurring measurement | Level 2 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | 3,000,000 | 0 |
Other securities | Railcar and Food Packaging | Recurring measurement | Level 3 |  |  |  |
Assets |  |  |  |
Fair value of plan assets |  | $ 9,000,000 | $ 21,000,000 |
[1] | Amounts are classified within other assets in our consolidated balance sheets.
[2] | Amounts are classified within accrued expenses and other liabilities in our consolidated balance sheets.

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + 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 (a) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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- Definition Fair value of assets that have been segregated and restricted to provide pension or postretirement benefits. Assets include, but are not limited to, stocks, bonds, other investments, earnings from investments, and contributions by the employer and employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Section 35 -Paragraph 50 -URI http://asc.fasb.org/extlink&oid=64937038&loc=d3e12355-114930 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Plan Assets -URI http://asc.fasb.org/extlink&oid=6749337 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Plan Assets -URI http://asc.fasb.org/extlink&oid=6520858 + 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=73719730&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=73719730&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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