Restructuring Initiatives (Narrative) (Details) - USD ($) $ 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, 2017	Dec. 31, 2016	Dec. 31, 2015
Restructuring charges (benefits) and other costs (benefits) recorded in period	$ 23.7	$ 6.2	$ 20.3	$ 10.0	$ 7.2	$ 14.0	$ 9.4	$ 46.8	$ 60.2	$ 77.4	$ 49.1
Cost of Sales [Member]
Restructuring charges (benefits) and other costs (benefits) recorded in period	0.7	0.0	0.0	(0.1)	0.3	0.0	0.3	0.0	0.6	0.6
Selling, General and Administrative Expenses [Member]
Restructuring charges (benefits) and other costs (benefits) recorded in period	23.0	$ 6.2	$ 20.3	$ 10.1	$ 6.9	$ 14.0	$ 9.1	$ 46.8	59.6	76.8
Transformation Plan [Member]
Effect on Future Earnings, Amount									$ 350.0
Restructuring And Related Activities, Number Of Years To Realized Cost Savings									3 years
Restructuring and Related Cost, Cost Incurred to Date	166.9								$ 166.9
Estimated charges to be incurred on approved initiatives	15.3								15.3
Restructuring charges (benefits) and other costs (benefits) recorded in period									60.8	83.7	22.4
Accelerated depreciation									1.9	1.9
Transformation Plan [Member] | Employee Related Costs [Member]
Estimated charges to be incurred on approved initiatives	7.3								7.3
Restructuring charges (benefits) and other costs (benefits) recorded in period									26.9	62.6	21.4
Transformation Plan [Member] | Contract Terminations/ Other [Member]
Estimated charges to be incurred on approved initiatives	6.8								6.8
Restructuring charges (benefits) and other costs (benefits) recorded in period									27.3	8.7
Transformation Plan [Member] | Currency Translation Adjustment Write Offs [Member]
Restructuring charges (benefits) and other costs (benefits) recorded in period										2.7
Transformation Plan [Member] | Professional Service Fees [Member]
Restructuring charges (benefits) and other costs (benefits) recorded in period									4.1	7.4	1.0
Transformation Plan [Member] | Inventory/ Asset Write-Offs [Member]
Estimated charges to be incurred on approved initiatives	0.0								0.0
Restructuring charges (benefits) and other costs (benefits) recorded in period									0.6	0.4
Transformation Plan [Member] | Minimum [Member]
Effect on Future Earnings, Amount									180.0
Estimated charges to be incurred on approved initiatives	15.0								15.0
Transformation Plan [Member] | Maximum [Member]
Effect on Future Earnings, Amount									185.0
Estimated charges to be incurred on approved initiatives	20.0								20.0
Transformation Plan [Member] | Cost of Sales [Member]
Restructuring charges (benefits) and other costs (benefits) recorded in period									0.6	0.4
Transformation Plan [Member] | Selling, General and Administrative Expenses [Member]
Restructuring charges (benefits) and other costs (benefits) recorded in period									60.2	83.3
Other Restructuring Initiatives 2015 [Member]
Restructuring and Related Cost, Cost Incurred to Date	28.7								28.7
Restructuring charges (benefits) and other costs (benefits) recorded in period									(0.2)		29.7
Other Restructuring Initiatives 2015 [Member] | Employee Related Costs [Member]
Restructuring charges (benefits) and other costs (benefits) recorded in period									(0.2)	0.0	22.1
Other Restructuring Initiatives 2015 [Member] | Professional Service Fees [Member]
Restructuring charges (benefits) and other costs (benefits) recorded in period											7.6
Other Restructuring Initiatives 2015 [Member] | Selling, General and Administrative Expenses [Member]
Restructuring charges (benefits) and other costs (benefits) recorded in period									(0.2)	(0.8)	29.7
Other Restructuring Initiatives [Member]
Restructuring charges (benefits) and other costs (benefits) recorded in period									0.4	5.5	$ 3.0
Net gain on sale of distribution center										$ 3.7
Global and Other Operating Segments [Member] | Transformation Plan [Member]
Estimated charges to be incurred on approved initiatives	$ 6.3								6.3
Supply Chain [Member] | Transformation Plan [Member]
Effect on Future Earnings, Amount									200.0
Other Costs [Member] | Transformation Plan [Member]
Effect on Future Earnings, Amount									150.0
Australia and New Zealand [Member] | Transformation Plan [Member] | Employee Related Costs [Member]
Restructuring charges (benefits) and other costs (benefits) recorded in period									$ 7.9