Segments - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Segment Reporting Information [Line Items]
Net sales	$ 1,088.5	$ 1,063.6	$ 2,096.3	$ 2,020.8
Equity in earnings in unconsolidated affiliates	0.2	0.1	0.4	0.3
Adjusted EBITDA	227.2	251.1	430.3	447.5
Investment in unconsolidated affiliates	14.8	15.1	14.8	15.1
Performance Coatings [Member]
Segment Reporting Information [Line Items]
Net sales	662.9	630.6	1,249.3	1,175.2
Equity in earnings in unconsolidated affiliates	0.1	0.1	0.2	0.2
Adjusted EBITDA	146.8	155.8	263.7	267.5
Investment in unconsolidated affiliates	3.0	3.9	3.0	3.9
Transportation Coatings [Member]
Segment Reporting Information [Line Items]
Net sales	425.6	433.0	847.0	845.6
Equity in earnings in unconsolidated affiliates	0.1	0.0	0.2	0.1
Adjusted EBITDA	80.4	95.3	166.6	180.0
Investment in unconsolidated affiliates	$ 11.8	$ 11.2	$ 11.8	$ 11.2

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=66022249&loc=d3e33749-111570

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.12)
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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(12))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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-Name Accounting Standards Codification
-Topic 944
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-Section S99
-Paragraph 1
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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