Long-Term Debt (Credit Facility Origination Narrative) (Details) (USD $)	9 Months Ended		1 Months Ended	3 Months Ended		1 Months Ended		1 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Jan. 31, 2009 Credit Facility, Term Loan B, Delayed Draw Facility [Member] Secured Debt [Member]	Dec. 31, 2008 Credit Facility, Term Loan B, Delayed Draw Facility [Member] Secured Debt [Member]	Dec. 31, 2007 Credit Facility, Term Loan B, Delayed Draw Facility [Member] Secured Debt [Member]	Jul. 31, 2007 Senior Notes at 8.875, Due 2015 [Member] Senior Notes [Member]	Jul. 31, 2007 July 2007, Origination [Member] Credit Facility, Name [Member] Credit Facility, Type of Debt [Member]	Jul. 31, 2007 July 2007, Origination [Member] Credit Facility, Revolving Credit Loans [Member] Line of Credit [Member]	Jul. 31, 2007 July 2007, Origination [Member] Credit Facility, Term Loan B [Member] Secured Debt [Member]	Jul. 31, 2007 July 2007, Origination [Member] Credit Facility, Term Loan B, Initial Funding Facility [Member] Secured Debt [Member]	Jul. 31, 2007 July 2007, Origination [Member] Credit Facility, Term Loan B, Delayed Draw Facility [Member] Secured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount						$ 3,000,000,000	$ 7,200,000,000	$ 750,000,000		$ 6,100,000,000	$ 400,000,000
Proceeds from Issuance of Subordinated Long-term Debt	3,825,000,000					3,000,000,000
Proceeds from Issuance of Senior Long-term Debt	5,924,377,000	83,000,000								6,100,000,000
Debt Instrument, Maturity Period								6 years		7 years	7 years
Line of Credit Facility, Remaining Borrowing Capacity				200,000,000	300,000,000
Debt Instrument, Increase, Additional Borrowings			$ 200,000,000	$ 100,000,000
Debt Instrument, Quarterly Amortization Payment									0.25%