Fair Value Measurements (Assets And Liabilities Measured On A Recurring Basis) (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Millions		Mar. 31, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring Basis
Equity securities		$ 17.8	$ 18.4
Fixed income		5.0	4.9
Money market fund		3.5	2.9
Other investments		1.0	1.0
Stable value fund	[1]	1.2	1.2
Foreign exchange contracts		277.8	334.0
Total assets		306.3	362.4
Foreign exchange contracts		429.1	517.4
Total liabilities		429.1	517.4
Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis
Equity securities		17.8	18.4
Fixed income		5.0	4.9
Other investments		1.0	1.0
Total assets		23.8	24.3
Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis
Money market fund		3.5	2.9
Foreign exchange contracts		277.8	334.0
Total assets		281.3	336.9
Foreign exchange contracts		429.1	517.4
Total liabilities		$ 429.1	$ 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.