Segment Reporting (Revenue by Major Category) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Segment Reporting Information [Line Items]
Total revenue	$ 4,533.7	$ 2,671.9
Video [Member]
Segment Reporting Information [Line Items]
Total revenue	1,640.5	1,212.7
Broadband Internet [Member]
Segment Reporting Information [Line Items]
Total revenue	1,141.7	659.3
Telephony [Member]
Segment Reporting Information [Line Items]
Total revenue	823.1	409.4
Cable Subscription [Member]
Segment Reporting Information [Line Items]
Total revenue	3,605.3	2,281.4
Mobile [Member]
Segment Reporting Information [Line Items]
Total revenue	257.3	62.1
Total Subscription [Member]
Segment Reporting Information [Line Items]
Total revenue	3,862.6	2,343.5
Business to Business [Member]
Segment Reporting Information [Line Items]
Total revenue	372.5	117.3
Other Category [Member]
Segment Reporting Information [Line Items]
Total revenue	298.6	211.1
Mobile Interconnect [Member]
Segment Reporting Information [Line Items]
Total revenue	60.8	23.2
SOHO Cable Subscription [Member]
Segment Reporting Information [Line Items]
Total revenue	$ 46.5	$ 32.8