Derivative Financial Instruments (Schedule Of Notional Amounts Of Outstanding Derivative Positions) (Details) - Mar. 31, 2016 € in Millions, £ in Millions, SGD in Millions, RUB in Millions, NOK in Millions, MYR in Millions, CAD in Millions, BRL in Millions, $ in Millions	USD ($)	BRL	NOK	SGD	MYR	EUR (€)	CAD	GBP (£)	RUB
Foreign Exchange Forward | Brazilian real | Notional Amount Bought
Derivative
Derivative, notional amount	$ 113.9	BRL 405.2
Foreign Exchange Forward | British pound | Notional Amount Bought
Derivative
Derivative, notional amount	100.8							£ 70.0
Foreign Exchange Forward | Canadian dollar | Notional Amount Sold
Derivative
Derivative, notional amount	146.0						CAD 188.3
Foreign Exchange Forward | Euro | Notional Amount Bought
Derivative
Derivative, notional amount	185.9					€ 163.2
Foreign Exchange Forward | Malaysia, Ringgits | Notional Amount Bought
Derivative
Derivative, notional amount	29.5				MYR 114.9
Foreign Exchange Forward | Norwegian krone | Notional Amount Bought
Derivative
Derivative, notional amount	197.4		NOK 1,633.4
Foreign Exchange Forward | Russian ruble | Notional Amount Sold
Derivative
Derivative, notional amount	16.2								RUB 1,092.1
Foreign Exchange Forward | Singapore dollar | Notional Amount Bought
Derivative
Derivative, notional amount	122.2			SGD 164.1
Foreign Exchange Forward | U.S. dollar | Notional Amount Sold
Derivative
Derivative, notional amount	769.6
Embedded Derivative Financial Instruments | Brazilian real | Notional Amount Sold
Derivative
Derivative, notional amount	17.1	BRL 60.8
Embedded Derivative Financial Instruments | Euro | Notional Amount Bought
Derivative
Derivative, notional amount	21.8					€ 19.2
Embedded Derivative Financial Instruments | Norwegian krone | Notional Amount Sold
Derivative
Derivative, notional amount	18.2		NOK 150.8
Embedded Derivative Financial Instruments | U.S. dollar | Notional Amount Bought
Derivative
Derivative, notional amount	$ 14.2