CONSOLIDATED STATEMENTS OF INCOME Parenthetical $ in Millions	12 Months Ended
Dec. 31, 2015 USD ($)
Income Statement [Abstract]
Discontinued operations gain tax effect	$ 6.0

Amount of gain (loss), after tax expense or benefit and not previously recognized, resulting from the sale of a business component.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e957-107759

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration