Restructuring (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 80.8	$ 76.1	$ 45.4
Through fiscal year 2018 | Minimum
Restructuring Cost and Reserve [Line Items]
Restructuring Charges				$ 500.0
Through fiscal year 2018 | Maximum
Restructuring Cost and Reserve [Line Items]
Restructuring Charges				600.0
Corporate / Other
Restructuring Cost and Reserve [Line Items]
Restructuring Charges				1.0
Rest of World Segment
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 2.6			$ 13.3