Commitments And Contingencies Commitments And Contingencies - Apollo Management Fee (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Dec. 31, 2012
Loss Contingencies [Line Items]
Annual management fee amount	$ 15
Apollo management fee termination fee	39
Apollo [Member]
Loss Contingencies [Line Items]
Percentage of transaction value paid to Apollo if transaction value is greater than $200M	1.00%
Minimum [Member] | Apollo [Member]
Loss Contingencies [Line Items]
Minimum transaction value for which Apollo receives a fee equal to 1% of the transaction value	200
Paid in December 2012 [Member]
Loss Contingencies [Line Items]
Apollo management fee termination fee	24
Annual management fee accrual	15
Paid in January 2013 [Member]
Loss Contingencies [Line Items]
Apollo management fee termination fee	$ 15