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

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

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Millions				12 Months Ended
	Feb. 11, 2016	Feb. 03, 2016	Feb. 17, 2015	Dec. 31, 2015
Subsequent Event [Line Items]
Vesting period				4 years
Restricted Stock Award
Subsequent Event [Line Items]
Granted shares				423,000
LCS Facilities
Subsequent Event [Line Items]
Repayments of debt			$ 298
Subsequent Event
Subsequent Event [Line Items]
Options, grants in period	290,500
Dividends declared		$ 0.65
Subsequent Event \| Restricted Stock Award
Subsequent Event [Line Items]
Granted shares	376,500
Subsequent Event \| Performance-based Restricted Stock
Subsequent Event [Line Items]
Granted shares	115,000