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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

X

- 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

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- Definition

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+ References

No definition available.

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