Segment Reporting Net Sales (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Segment Reporting
Net Sales	$ 2,303.3	$ 2,331.5
Maximum percentage of sales accounted for by a single customer (as a percent)	10.00%
UNITED STATES
Segment Reporting
Net Sales	$ 1,659.2	1,647.8
Canada [Member]
Segment Reporting
Net Sales	261.0	283.8
Europe [Member]
Segment Reporting
Net Sales	362.9	374.3
International [Member]
Segment Reporting
Net Sales	47.9	57.5
Corporate [Member]
Segment Reporting
Net Sales	0.2	0.2
Intersegment sales elimination
Segment Reporting
Net Sales	$ (27.9)	$ (32.1)

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045

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