Fair Value Measurements (Assets And Liabilities Measured On A Recurring Basis) (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Millions		Sep. 30, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring Basis
Equity securities		$ 18.4	$ 18.4
Fixed income		4.8	4.9
Money market fund		1.8	2.9
Other investments			1.0
Stable value fund	[1]	1.1	1.2
Foreign exchange contracts		134.8	334.0
Total assets		160.9	362.4
Foreign exchange contracts		216.3	517.4
Total liabilities		216.3	517.4
Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis
Equity securities		18.4	18.4
Fixed income		4.8	4.9
Other investments			1.0
Total assets		23.2	24.3
Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis
Money market fund		1.8	2.9
Foreign exchange contracts		134.8	334.0
Total assets		136.6	336.9
Foreign exchange contracts		216.3	517.4
Total liabilities		$ 216.3	$ 517.4

[1] Certain investments that are measured at fair value using net asset value per share (or its equivalent) have not been classified in the fair value hierarchy.