Goodwill, Customer Relationships And Other Intangible Assets (Schedule Of Amortization For Intangible Assets) (Details) (USD $) In Millions	3 Months Ended	6 Months Ended	3 Months Ended		9 Months Ended
	Sep. 30, 2011 Successor [Member]	Sep. 30, 2011 Successor [Member]	Mar. 31, 2011 Predecessor [Member]	Sep. 30, 2010 Predecessor [Member]	Sep. 30, 2010 Predecessor [Member]
Amortization expense for intangible assets	$ 395	$ 795	$ 58	$ 56	$ 165