Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9

Name:	us-gaap_DebtInstrumentCarryingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Subsequent Events (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	0 Months Ended		3 Months Ended			3 Months Ended
	Feb. 25, 2014 Depositary units [Member]	May 05, 2014 Dividend Declared [Member] Depositary units [Member] Limited partners	Mar. 31, 2014 Automotive Segment [Member]	Apr. 15, 2014 Tranche B Loan [Member] Automotive Segment [Member]	Apr. 15, 2014 Tranche C Loan [Member] Automotive Segment [Member]	Mar. 31, 2014 Revolving Credit Facility [Member] Automotive Segment [Member]
Subsequent Event [Line Items]
Distribution declared per depositary unit	$ 1.50	$ 1.50
Expected extinguishment of debt			$ 35
Long-term Debt, Gross				700	1,900
Line of Credit Facility Aggregate Principal Amount Upon Acceleration						$ 700