Summary of Significant Accounting Policies (Property, Plant and Equipment) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Property, Plant and Equipment [Line Items]
Depreciation and amortization		$ 257.1	$ 258.3	$ 193.8
Interest costs capitalized		10.5	3.4	5.6
Capitalized internal use software	74.7	74.7	62.2
Capitalized internal use software, depreciation expense		28.6	29.3	14.7
Cash received from disposition of assets	15.5
Gain on disposition of assets	15.2	13.3	(0.6)	0.2
Gain on disposition of assets, net of taxes	9.3
Gain on disposition of assets per diluted share (dollars per share)	$ 0.12
Property, Plant and Equipment, Net, by Type [Abstract]
Property, plant and equipment, gross	3,614.6	3,614.6	3,160.5
Less: accumulated depreciation	(1,289.6)	(1,289.6)	(1,050.4)
Property, plant and equipment, net	2,325.0	2,325.0	2,110.1
Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives		3 years
Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives		40 years
Land and improvements [Member]
Property, Plant and Equipment, Net, by Type [Abstract]
Property, plant and equipment, gross	220.4	220.4	215.9
Building and improvements [Member]
Property, Plant and Equipment, Net, by Type [Abstract]
Property, plant and equipment, gross	1,713.7	1,713.7	1,646.9
Equipment [Member]
Property, Plant and Equipment, Net, by Type [Abstract]
Property, plant and equipment, gross	1,298.2	1,298.2	1,135.3
Construction in progress [Member]
Property, Plant and Equipment [Line Items]
Other capital expediture commitment	162.2	162.2
Property, Plant and Equipment, Net, by Type [Abstract]
Property, plant and equipment, gross	$ 382.3	$ 382.3	$ 162.4