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Debt Debt Table (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Debt	$ 11,185	$ 11,119
Holding Company
Debt Instrument [Line Items]
Debt	5,507	5,490
Holding Company | 3.500% senior unsecured notes due 2017
Debt Instrument [Line Items]
Debt	0	1,174
Holding Company | 4.875% senior unsecured notes due 2019
Debt Instrument [Line Items]
Debt	0	1,271
Holding Company | 6.000% senior unsecured notes due 2020
Debt Instrument [Line Items]
Debt	1,703	1,705
Holding Company | 5.875% senior unsecured notes due 2022
Debt Instrument [Line Items]
Debt	1,342	1,340
Holding Company | 6.250% senior unsecured notes due 2022
Debt Instrument [Line Items]
Debt	1,216	0
Holding Company | 6.750% senior unsecured notes due 2024
Debt Instrument [Line Items]
Debt	498	0
Holding Company | 6.375% senior unsecured notes due 2025
Debt Instrument [Line Items]
Debt	748	0
Automotive Segment
Debt Instrument [Line Items]
Debt	3,470	3,259
Energy Segment
Debt Instrument [Line Items]
Debt	1,166	1,165
Railcar Segment
Debt Instrument [Line Items]
Debt	546	571
Gaming Segment
Debt Instrument [Line Items]
Debt	137	287
Metals Segment
Debt Instrument [Line Items]
Debt	1	2
Mining Segment
Debt Instrument [Line Items]
Debt	58	55
Food Packaging Segment
Debt Instrument [Line Items]
Debt	273	265
Real Estate Segment
Debt Instrument [Line Items]
Debt	22	25
Home Fashion Segment
Debt Instrument [Line Items]
Debt	5	0
Reporting Segments [Member]
Debt Instrument [Line Items]
Debt	$ 5,678	$ 5,629

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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