Financial Instruments (Schedule Of Net Foreign Exchange Positions) (Details) - Foreign currency exchange contracts - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
Derivatives, Fair Value [Line Items]
Buy (Sell)	$ (22.3)	$ (34.5)
Notional Amount	125.9	95.9
Other Currencies - Buy
Derivatives, Fair Value [Line Items]
Buy (Sell)	30.6	(6.1)
Notional Amount	30.6	6.1
Other Currencies - Sell
Derivatives, Fair Value [Line Items]
Buy (Sell)	(14.3)	14.9
Notional Amount	14.3	14.9
Euro
Derivatives, Fair Value [Line Items]
Buy (Sell)	(38.7)	(25.4)
Notional Amount	38.7	25.4
Japanese Yen
Derivatives, Fair Value [Line Items]
Buy (Sell)	(21.1)	(33.7)
Notional Amount	21.1	33.7
Philippine Peso
Derivatives, Fair Value [Line Items]
Buy (Sell)	21.2	15.8
Notional Amount	$ 21.2	$ 15.8