SCHEDULE I (Parent Company Information) CONDENSED STATEMENT OF CASH FLOWS (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended			7 Months Ended	12 Months Ended			5 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Liberty Global plc [Member]	Dec. 31, 2013 Liberty Global plc [Member]	Dec. 31, 2012 Liberty Global plc [Member]	Dec. 31, 2011 Liberty Global plc [Member]	Jun. 07, 2013 Liberty Global, Inc. [Member]	Dec. 31, 2012 Liberty Global, Inc. [Member]	Dec. 31, 2011 Liberty Global, Inc. [Member]
Cash flows from operating activities:
Net earnings (loss)	$ (963.9)	$ 322.8	$ (772.7)	$ (1,012.9)	$ (963.9)	$ 322.8	$ (772.7)	$ 49.0	$ 322.8	$ (772.7)
Adjustments to reconcile loss from continuing operations to net cash provided by operating activities:
Equity in losses (earnings) of consolidated subsidiaries, net				1,306.3				(120.0)	(390.7)	552.6
Share-based compensation expense	300.7	110.1	129.4	3.5				11.5	33.0	38.2
Related-party fees and allocations				54.9
Depreciation and amortization	4,276.4	2,661.5	2,424.3					0.3	0.8	0.6
Other operating charges								48.1	0	0
Amortization of deferred financing costs and non-cash interest accretion	78.0	65.7	78.8					0	0	16.5
Loss on debt conversion	212.2	213.8	218.4					0	0	187.2
Deferred income tax expense (benefit)	18.6	36.0	146.6					(21.9)	111.7	(98.3)
Excess tax benefits from share-based compensation	(41.0)	(6.7)	(37.7)					0	(2.6)	(38.4)
Changes in operating assets and liabilities:
Receivables and other operating assets	866.7	785.0	671.2	(104.9)				(7.2)	(27.1)	(2.3)
Payables and accruals	(1,208.1)	(1,171.7)	(1,170.2)	6.7				(23.8)	(71.4)	(7.0)
Net cash provided by (used by) operating activities	3,931.3	2,919.7	2,736.3	253.6				(64.0)	(23.5)	(123.6)
Cash flows from investing activities:
Distributions and advances from subsidiaries and affiliates, net				949.0				163.1	855.1	447.5
Capital expenditures	(2,481.5)	(1,868.3)	(1,920.8)	(11.3)				(0.7)	(2.0)	(2.4)
Net cash provided by (used by) investing activities	(7,965.0)	(1,080.9)	(4,010.3)	937.7				162.4	853.1	445.1
Cash flows from financing activities:
Repurchase of Liberty Global and LGI shares	(1,157.2)	(970.3)	(912.6)	(971.8)				(185.4)	(970.3)	(912.6)
Proceeds (payments) related to call option contracts for LGI common stock								55.5	(52.1)	0
Proceeds from issuance of LGI common stock upon exercise of stock options				78.1				2.9	25.6	32.7
Payment of net settled employee withholding taxes on share-based incentive awards	(64.5)	(54.4)	(116.2)					(13.1)	(22.1)	(68.2)
Excess tax benefits from share-based compensation	41.0	6.7	37.7					0	2.6	38.4
Payment of exchange offer consideration								0	0	(187.5)
Other financing activities, net	157.8	(92.2)	54.6	(6.9)
Net cash provided (used) by financing activities	4,615.9	(1,469.8)	(747.7)	(900.6)				(140.1)	(1,016.3)	(1,097.2)
Net increase (decrease) in cash and cash equivalents	667.6	387.7	(1,987.4)	290.7				(41.7)	(186.7)	(775.7)
Cash and cash equivalents:
Beginning of year	2,038.9	1,651.2	3,847.5	0				69.4	256.1	1,031.8
End of year	$ 2,701.9	$ 2,038.9	$ 1,651.2	$ 290.7	$ 290.7			$ 27.7	$ 69.4	$ 256.1