Long-lived Assets (Schedule of PP&E) (Details) (USD $) In Millions, unless otherwise specified									12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Distribution Systems [Member]	Dec. 31, 2012 Distribution Systems [Member]	Dec. 31, 2013 Customer Premises Equipment [Member]	Dec. 31, 2012 Customer Premises Equipment [Member]	Dec. 31, 2013 Support Equipment, Buildings and Land [Member]	Dec. 31, 2012 Support Equipment, Buildings and Land [Member]	Dec. 31, 2013 Minimum [Member] Distribution Systems [Member]	Dec. 31, 2013 Minimum [Member] Customer Premises Equipment [Member]	Dec. 31, 2013 Minimum [Member] Support Equipment, Buildings and Land [Member]	Dec. 31, 2013 Maximum [Member] Distribution Systems [Member]	Dec. 31, 2013 Maximum [Member] Customer Premises Equipment [Member]	Dec. 31, 2013 Maximum [Member] Support Equipment, Buildings and Land [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life									4 years	3 years	3 years	30 years	5 years	40 years
Property and equipment, gross	$ 34,901.1	$ 21,817.0	$ 25,193.2	$ 15,372.3	$ 6,126.0	$ 4,162.6	$ 3,581.9	$ 2,282.1
Accumulated depreciation	(10,926.2)	(8,379.4)
Total property and equipment, net	$ 23,974.9	$ 13,437.6