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Debt (Details) - USD ($) $ in Millions | Jun. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Debt Instrument [Line Items] |  |
Debt | $ 7,880 | $ 7,918
Reporting Segments [Member] |  |
Debt Instrument [Line Items] |  |
Debt | 2,375 | 2,411
Holding Company |  |
Debt Instrument [Line Items] |  |
Debt | 5,505 | 5,507
Automotive Segment |  |
Debt Instrument [Line Items] |  |
Debt | 324 | 340
Energy Segment |  |
Debt Instrument [Line Items] |  |
Debt | 1,167 | 1,166
Railcar Segment |  |
Debt Instrument [Line Items] |  |
Debt | 533 | 546
Metals Segment |  |
Debt Instrument [Line Items] |  |
Debt | 1 | 1
Mining Segment |  |
Debt Instrument [Line Items] |  |
Debt | 54 | 58
Food Packaging Segment |  |
Debt Instrument [Line Items] |  |
Debt | 270 | 273
Real Estate Segment |  |
Debt Instrument [Line Items] |  |
Debt | 20 | 22
Home Fashion Segment |  |
Debt Instrument [Line Items] |  |
Debt | 6 | 5
6.000% senior unsecured notes due 2020 | Holding Company |  |
Debt Instrument [Line Items] |  |
Debt | 1,703 | 1,703
5.875% senior unsecured notes due 2022 | Holding Company |  |
Debt Instrument [Line Items] |  |
Debt | 1,342 | 1,342
6.250% senior unsecured notes due 2022 | Holding Company |  |
Debt Instrument [Line Items] |  |
Debt | 1,215 | 1,216
6.750% senior unsecured notes due 2024 | Holding Company |  |
Debt Instrument [Line Items] |  |
Debt | 498 | 498
6.375% senior unsecured notes due 2025 | Holding Company |  |
Debt Instrument [Line Items] |  |
Debt | $ 747 | $ 748

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- Definition Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13,16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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