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Discontinued Operations (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]      
(Loss) gain due to change in carrying value of discontinued operations net assets $ (26.0) $ (13.3) $ (105.2)
As Reported [Member]      
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]      
(Loss) gain due to change in carrying value of discontinued operations net assets     (70.0)
Restated [Member]      
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]      
(Loss) gain due to change in carrying value of discontinued operations net assets     (105.2)
EMEA and Pacific Rim Business [Member]      
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]      
(Loss) gain due to change in carrying value of discontinued operations net assets $ (31.2) $ (19.3) (109.2)
EMEA and Pacific Rim Business [Member] | As Reported [Member]      
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]      
(Loss) gain due to change in carrying value of discontinued operations net assets     (74.0)
EMEA and Pacific Rim Business [Member] | Restated [Member]      
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]      
(Loss) gain due to change in carrying value of discontinued operations net assets     (109.2)
EMEA and Pacific Rim Business [Member] | Restated [Member] | Material Correction Related To Previously Reported Estimated Loss On Sale [Member]      
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]      
Reduction in assets held for sale     35.2
EMEA and Pacific Rim Business [Member] | Foreign Currency Translation Adjustments [Member]      
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]      
(Loss) gain due to change in carrying value of discontinued operations net assets     $ (51.4)