Derivative Instruments and Hedging Activities (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended			3 Months Ended					3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Sep. 30, 2012	Dec. 31, 2013	Mar. 31, 2014 Foreign Exchange Contract [Member]	Mar. 31, 2014 Intercompany Loans [Member]	Mar. 31, 2013 Intercompany Loans [Member]	Mar. 31, 2014 January 2013 Interest-Rate Swap Termination [Member]	Mar. 31, 2013 January 2013 Interest-Rate Swap Termination [Member]	Jan. 31, 2013 January 2013 Interest-Rate Swap Termination [Member]	Mar. 31, 2014 March 2012 Interest-Rate Swap Termination [Member]	Mar. 31, 2013 March 2012 Interest-Rate Swap Termination [Member]	Mar. 31, 2012 March 2012 Interest-Rate Swap Termination [Member]
Minimum Cumulative Rate Percentage of Fair Value Derivative to Qualify as Highly Effective Derivative Instrument	80.00%
Maximum Cumulative Rate Percentage of Fair Value Derivative to Qualify as Highly Effective Derivative Instrument	125.00%
Total exposure to floating rate interest rates	8.00%			8.00%
Notional Amount Related to Discontinuation of Interest Rate Fair Value Hedge										$ 1,000			$ 350
Deferred Gain (Loss) on Discontinuation of Interest Rate Fair Value Hedge								60.8		90.4	34.1		46.1
Interest Rate Swap Termination Fee										2.3			2.5
Amortization of Interest Rate Swap Gains								3.5	5.2		1.6	1.5
Change in fair market value of interest-rate swap agreements	0	(0.7)	(0.7)
Gain (Loss) on Interest Rate Fair Value Hedge Ineffectiveness		0
Notional amounts of foreign currency exchange contracts					202
Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments						0.1	(3.0)
Gain (loss) due to the effect of foreign currency exchange rates on intercompany loans						$ 0.1	$ 3.1