Long-Term Debt (Details 3) (Revolving Credit Facility [Member], USD $)	5 Months Ended	24 Months Ended		12 Months Ended
	Dec. 31, 2013 Five Year Term [Member]	Aug. 31, 2013 Five Year Term [Member]	Sep. 08, 2011 Five Year Term [Member]	Sep. 04, 2013 364 Day [Member]	Sep. 04, 2012 364 Day [Member]
Debt Instrument [Line Items]
Debt Instrument, Term	5 years	5 years		364 days
Line of Credit Facility, Maximum Borrowing Capacity		$ 1,775,000,000	$ 1,500,000,000		$ 500,000,000
Credit Facility, Covenant Terms, Maximum Debt to Capitalization Ratio	65.00%
Line of Credit Facility, Amount Outstanding	$ 0