Fair Value (Fair Value Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Jun. 30, 2012
Money market funds	$ 0.5	$ 26.9	$ 40.0
Assets, Fair Value Disclosure, Recurring	6.4	128.5
Liabilities, Fair Value Disclosure	0.3	3.2
Available-for-sale Securities [Member]
Available-for-sale securities	2.5	1.9
Interest Rate Swap Agreements [Member]
Derivative Assets		94.8
Derivative Liabilities		1.7
Foreign Exchange Contract [Member]
Derivative Assets	3.4	4.9
Derivative Liabilities	0.3	1.5
Level 1 [Member]
Money market funds	0.5	26.9
Assets, Fair Value Disclosure, Recurring	3.0	28.8
Liabilities, Fair Value Disclosure	0	0
Level 1 [Member] | Available-for-sale Securities [Member]
Available-for-sale securities	2.5	1.9
Level 1 [Member] | Interest Rate Swap Agreements [Member]
Derivative Assets		0
Derivative Liabilities		0
Level 1 [Member] | Foreign Exchange Contract [Member]
Derivative Assets	0	0
Derivative Liabilities	0	0
Level 2 [Member]
Money market funds	0	0
Assets, Fair Value Disclosure, Recurring	3.4	99.7
Liabilities, Fair Value Disclosure	0.3	3.2
Level 2 [Member] | Available-for-sale Securities [Member]
Available-for-sale securities	0	0
Level 2 [Member] | Interest Rate Swap Agreements [Member]
Derivative Assets		94.8
Derivative Liabilities		1.7
Level 2 [Member] | Foreign Exchange Contract [Member]
Derivative Assets	3.4	4.9
Derivative Liabilities	$ 0.3	$ 1.5