Derivative Financial Instruments (Schedule Of Notional Amounts Of Outstanding Derivative Positions) (Details) - Jun. 30, 2016 € in Millions, £ in Millions, SGD in Millions, NOK in Millions, MYR in Millions, CAD in Millions, BRL in Millions, AUD in Millions, $ in Millions	USD ($)	BRL	NOK	EUR (€)	CAD	GBP (£)	SGD	AUD	MYR
Foreign Exchange Forward | Australian dollar | Notional Amount Bought
Derivative
Derivative, notional amount	$ 38.8							AUD 52.1
Foreign Exchange Forward | Brazilian real | Notional Amount Bought
Derivative
Derivative, notional amount	156.0	BRL 500.6
Foreign Exchange Forward | British pound | Notional Amount Bought
Derivative
Derivative, notional amount	161.8					£ 120.2
Foreign Exchange Forward | Canadian dollar | Notional Amount Sold
Derivative
Derivative, notional amount	148.9				CAD 192.8
Foreign Exchange Forward | Euro | Notional Amount Bought
Derivative
Derivative, notional amount	109.8			€ 98.8
Foreign Exchange Forward | Malaysian ringgit | Notional Amount Bought
Derivative
Derivative, notional amount	17.2								MYR 69.3
Foreign Exchange Forward | Norwegian krone | Notional Amount Bought
Derivative
Derivative, notional amount	170.5		NOK 1,429.1
Foreign Exchange Forward | Singapore dollar | Notional Amount Bought
Derivative
Derivative, notional amount	88.9						SGD 119.7
Foreign Exchange Forward | U.S. dollar | Notional Amount Sold
Derivative
Derivative, notional amount	694.4
Embedded Derivative Financial Instruments | Brazilian real | Notional Amount Sold
Derivative
Derivative, notional amount	13.1	BRL 42.1
Embedded Derivative Financial Instruments | Euro | Notional Amount Sold
Derivative
Derivative, notional amount	32.1			€ 28.9
Embedded Derivative Financial Instruments | Norwegian krone | Notional Amount Sold
Derivative
Derivative, notional amount	32.5		NOK 272.1
Embedded Derivative Financial Instruments | U.S. dollar | Notional Amount Bought
Derivative
Derivative, notional amount	$ 79.1