[Line Items] for Schedule Of Dividends Paid Table [Table]

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- Definition

Aggregate dividends paid during the period for each share of common stock outstanding.

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Aggregate dividends declared during the period for each share of common stock outstanding.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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Reference 1: 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(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21463-112644

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- Definition

Amount of paid and unpaid cash, stock, and paid-in-kind (PIK) dividends declared, for example, but not limited to, common and preferred stock.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 405
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6957935&loc=d3e64057-112817

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- Definition

Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585

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Dividends (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended									12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Schedule Of Dividends Paid Table [Line Items]
Per common share (in dollars per share)	$ 0.5	$ 0.5	$ 0.5	$ 0.5	$ 0.5	$ 0.5	$ 0.5	$ 0.5		$ 2	$ 2	$ 2
Total dividends paid										$ 173.7	$ 173.6	$ 173.7
Total dividends paid per common share (in dollars per share)										$ 2	$ 2
Amount paid to IEP
Schedule Of Dividends Paid Table [Line Items]
Total dividends paid										$ 142.4	$ 142.4
Amounts paid to public stockholders
Schedule Of Dividends Paid Table [Line Items]
Total dividends paid										$ 31.3	$ 31.2
Quarterly
Schedule Of Dividends Paid Table [Line Items]
Total amount paid		$ 43.4	$ 43.4	$ 43.4	$ 43.4	$ 43.4	$ 43.4	$ 43.4	$ 43.4
Per common share (in dollars per share)		$ 0.50	$ 0.50	$ 0.50	$ 0.50	$ 0.50	$ 0.50	$ 0.50	$ 0.50
Shares outstanding (in shares)		86.8	86.8	86.8	86.8	86.8	86.8	86.8	86.8		86.8	86.8
Quarterly \| Amount paid to IEP
Schedule Of Dividends Paid Table [Line Items]
Total amount paid		$ 35.6	$ 35.6	$ 35.6	$ 35.6	$ 35.6	$ 35.6	$ 35.6	$ 35.6
Quarterly \| Amounts paid to public stockholders
Schedule Of Dividends Paid Table [Line Items]
Total amount paid		$ 7.8	$ 7.8	$ 7.8	$ 7.8	$ 7.8	$ 7.8	$ 7.8	$ 7.8