Financing Arrangements and Debt (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended			9 Months Ended
	Jun. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 Committed Credit Facility [Member]	Sep. 30, 2014 Uncommitted Credit Facilities [Member]
Line of Credit Facility [Line Items]
Credit facility maximum borrowing capacity				$ 2,000	$ 270
Credit facility, maturity date				Jun. 01, 2017
Credit facility interest rate above LIBOR				1.25%
Line of credit facility fee				0.25%
Capital lease duration	25 years
Capital lease payment duration	15 years
Capital lease obligations, current		39.6
Capital lease obligations, noncurrent			$ 341.3