Indebtedness (Schedule Of Long-Term Debt Maturities) (Details) (USD $)	3 Months Ended
	Jun. 30, 2014
Maturities of Long-term Debt [Abstract]
June 30, 2015	$ 400,235,000	[1]
March 31, 2016	250,304,000	[1]
March 31, 2017	609,831,000	[1]
March 31, 2018	325,095,000	[1]
March 31, 2019	0	[1]
Thereafter	825,000,000	[1]
Total maturities of long-term debt	2,410,465,000	[1]
Trade receivables securitization [Member]
Maturities of Long-term Debt [Abstract]
Trade receivables securitization, expiration date	December 5, 2016
Senior notes, net [Member]
Maturities of Long-term Debt [Abstract]
Unamortized discounts	$ 1,700,000

[1] Outstanding borrowings under the Securitization Agreement at June 30, 2014 are reflected as maturing at the agreement’s expiration on December 5, 2016.The Senior Notes are reflected in the debt maturity schedule at their maturity values rather than their carrying values, which are net of aggregate discounts of $1.7 million at June 30, 2014.