Business Segment Information (Summary of Operations by Reportable Segments) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Net revenues	$ 3,495.5	$ 3,470.9	$ 9,275.6	$ 9,892.2
Segment Adjusted EBITDA	701.1	658.7	1,606.9	1,712.7
Interest Expense	(62.4)	(63.9)	(186.8)	(179.4)
Depreciation and amortization	(74.5)	(72.7)	(223.7)	(215.8)
Restructuring and Related Cost, Incurred Cost	(8.2)	(16.6)	(71.3)	(36.0)
Unallocated corporate expense	56.0	38.7	159.5	142.7
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	500.0	466.8	965.6	1,138.8
Americas [Member]
Net revenues	2,745.8	2,707.5	7,300.0	7,685.5
Segment Adjusted EBITDA	555.0	529.9	1,287.6	1,388.3
Restructuring and Related Cost, Incurred Cost	(6.6)	(15.4)	(33.2)	(28.3)
EMEA [Member]
Net revenues	445.2	456.3	1,182.7	1,289.4
Segment Adjusted EBITDA	87.6	82.0	190.1	196.1
Restructuring and Related Cost, Incurred Cost	(0.7)	(0.8)	(7.2)	(3.6)
Asia Pacific [Member]
Net revenues	304.5	307.1	792.9	917.3
Segment Adjusted EBITDA	58.5	46.8	129.2	128.3
Restructuring and Related Cost, Incurred Cost	$ (0.8)	$ (0.4)	$ (3.3)	$ (3.3)