Goodwill and Other Intangibles (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Indefinite-lived Intangible Assets by Segment [Line Items]
Goodwill	$ 6,337,719,000	$ 6,337,719,000
Other Intangibles:
Other intangibles	2,657,086,000	2,937,717,000
Less: Accumulated amortization	(1,114,347,000)	(973,212,000)
Total other intangibles, net	1,542,739,000	1,964,505,000
Amortization expense	422,200,000	521,700,000	294,100,000
Finite-Lived Intangible Assets, Future Amortization Expense
Estimated future amortization expense, year 1	330,000,000
Estimated future amortization expense, year 2	285,000,000
Estimated future amortization expense, year 3	240,000,000
Estimated future amortization expense, year 4	195,000,000
Estimated future amortization expense, year 5	150,000,000
Estimated fair value of intangible assets acquired in the Transaction	2,532,200,000
Residential customer list [Member]
Other Intangibles:
Estimated useful life	9 years
Business customer list [Member]
Other Intangibles:
Estimated useful life	12 years
Customer base [Member]
Other Intangibles:
Other intangibles	2,427,648,000	2,697,413,000
Amortization expense	410,800,000	465,400,000	237,800,000
Software licenses [Member]
Other Intangibles:
Other intangibles	105,019,000	105,019,000
Trade name and license [Member]
Other Intangibles:
Other intangibles	124,419,000	135,285,000
Customer base and trade name [Member]
Other Intangibles:
Amortization expense	11,400,000	56,300,000	56,300,000
Northeast [Member]
Indefinite-lived Intangible Assets by Segment [Line Items]
Goodwill	1,245,414,000
Southeast [Member]
Indefinite-lived Intangible Assets by Segment [Line Items]
Goodwill	1,113,931,000
West [Member]
Indefinite-lived Intangible Assets by Segment [Line Items]
Goodwill	1,072,499,000
Central [Member]
Indefinite-lived Intangible Assets by Segment [Line Items]
Goodwill	1,006,132,000
National [Member]
Indefinite-lived Intangible Assets by Segment [Line Items]
Goodwill	1,176,139,000
Midwest [Member]
Indefinite-lived Intangible Assets by Segment [Line Items]
Goodwill	$ 723,604,000