Long-Term Debt (Credit Facility Amendments and Modifications Narrative) (Details) (USD $)		1 Months Ended			1 Months Ended			1 Months Ended				1 Months Ended
	Sep. 30, 2012 Credit Facility, Revolving Credit Loans [Member] Line of Credit [Member]	Aug. 31, 2012 Credit Facility, Term Loan B [Member] Secured Debt [Member]	Sep. 30, 2012 Credit Facility, Term Loan B, Initial Funding Facility [Member] Secured Debt [Member]	Aug. 31, 2012 Senior Secured Notes At 5.125 Due 2018 [Member] Senior Secured Notes [Member]	Nov. 30, 2010 November 5, 2010 Amendment [Member] Credit Facility, Term Loan B [Member] Secured Debt [Member]	Nov. 30, 2010 November 5, 2010 Amendment [Member] Credit Facility, Term Loan B, Incremental Facility [Member] Secured Debt [Member]	Nov. 30, 2010 November 5, 2010 Amendment [Member] Receivables Facility, Name [Member] Receivables Facility [Member]	Feb. 29, 2012 February 2, 2012 Amendment [Member] Credit Facility, Term Loan B [Member] Secured Debt [Member]	Mar. 31, 2012 March 6, 2012 Amendment [Member] Credit Facility, Revolving Credit Loans and Term Loan A [Member] Credit Facility, Type of Debt [Member]	Mar. 31, 2012 March 6, 2012 Amendment [Member] Credit Facility, Revolving Credit Loans [Member] Line of Credit [Member]	Mar. 31, 2012 March 6, 2012 Amendment [Member] Credit Facility, Term Loan A [Member] Secured Debt [Member]	Aug. 31, 2012 August 22, 2012 Modification [Member] Credit Facility, Term Loan B [Member] Secured Debt [Member]
Debt Instrument [Line Items]
Extended Maturity Period for Term Loans, After Amendment					2 years 6 months			2 years 6 months				2 years 6 months
Debt Instrument Face Amount, Extended Maturity Period Applied, After Amendment					$ 1,500,000,000			$ 1,600,000,000				$ 340,000,000
Debt Instrument, Basis Spread on Variable Rate					3.50%			3.50%	2.50%			3.50%
Balance of Remaining Non-extended Term Loans			266,100,000
Debt Instrument, Uncommitted Incremental Borrowing Capacity, After Amendment						1,000,000,000
Debt Instrument, Uncommitted Incremental Borrowing Capacity, Before Amendment						600,000,000
Borrowing Capacity, Receivables Transactions, After Amendment							2,000,000,000
Borrowing Capacity, Receivables Transactions, Incremental Capacity Due to Amendment							500,000,000
Borrowing Capacity, Receivables Transactions, Required Amount Committed to Repayments							1,700,000,000
Line of Credit Facility, Maximum Borrowing Capacity	750,000,000									750,000,000
Debt Instrument, Face Amount				1,600,000,000							750,000,000
Extinguishment of Debt, Amount		$ 1,600,000,000						$ 1,600,000,000
Debt Extinguishment Date								Aug. 17, 2012
Debt Instrument, Amortization Rate, Year One											5.00%
Debt Instrument, Amortization Rate, Years Two and Three											10.00%
Debt Instrument, Amortization Rate, Year Four											15.00%
Debt Instrument, Amortization Rate, Year Five											60.00%