Consolidated Statement of Equity (USD $) In Millions	Total	Additional paid-in capital [Member]	Accumulated deficit [Member]	Accumulated other comprehensive earnings, net of taxes [Member]	Treasury shares, at cost [Member]	Total Liberty Global shareholders [Member]	Non-controlling interests [Member]	Class A Ordinary Shares [Member] Ordinary Shares / Common stock [Member]	Class B Ordinary Shares [Member] Ordinary Shares / Common stock [Member]	Class C Ordinary Shares [Member] Ordinary Shares / Common stock [Member]	Series A Common Stock [Member] Ordinary Shares / Common stock [Member]	Series B Common Stock [Member] Ordinary Shares / Common stock [Member]	Series C Common Stock [Member] Ordinary Shares / Common stock [Member]
Beginning balance at Dec. 31, 2010	$ 3,457.7	$ 3,500.7	$ (1,898.8)	$ 1,440.3		$ 3,044.6	$ 413.1				$ 1.2	$ 0.1	$ 1.1
Net earnings (loss)	(671.0)		(772.7)			(772.7)	101.7
Other comprehensive earnings, net of taxes (note 15)	48.2			69.2		69.2	(21.0)
Repurchase and cancellation of LGI common stock (note 11)	(912.3)	(912.1)				(912.3)					(0.1)		(0.1)
LGI Notes Exchange and conversion of UGC Convertible Notes (note 9)	1,325.1	1,324.5				1,325.1					0.4		0.2
Share-based compensation (note 12)	81.0	81.0				81.0
Net excess tax benefits from share-based compensation	37.6	37.6				37.6
Distributions by subsidiaries to noncontrolling interest owners (note 11)	(418.2)						(418.2)
LGI common stock issued in connection with equity incentive plans and related employee tax withholding, net	(79.7)	(79.7)				(79.7)
Adjustments due to changes in subsidiaries’ equity and other, net	63.0	12.6				12.6	50.4
Ending balance at Dec. 31, 2011	2,931.4	3,964.6	(2,671.5)	1,509.5		2,805.4	126.0				1.5	0.1	1.2
Net earnings (loss)	387.3		322.8			322.8	64.5
Other comprehensive earnings, net of taxes (note 15)	91.3			91.0		91.0	0.3
Repurchase and cancellation of LGI common stock (note 11)	(980.7)	(980.5)				(980.7)					(0.1)		(0.1)
LGI call option contracts (note 11)	(53.2)	(53.2)				(53.2)
Share-based compensation (note 12)	70.4	70.4				70.4
Telenet Share Repurchase Agreement (note 11)	(60.6)	(62.8)				(62.8)	2.2
Sale of Austar (note 4)	(84.4)						(84.4)
Puerto Rico Transaction (note 3)	96.5	48.3				48.3	48.2
Distributions by subsidiaries to noncontrolling interest owners (note 11)	(351.3)						(351.3)
Adjustments due to changes in subsidiaries’ equity and other, net	38.4	(31.2)				(31.2)	69.6
Ending balance at Dec. 31, 2012	2,085.1	2,955.6	(2,348.7)	1,600.5	0	2,210.0	(124.9)	0	0	0	1.4	0.1	1.1
Net earnings (loss)	(905.7)		(963.9)			(963.9)	58.2
Other comprehensive earnings, net of taxes (note 15)	911.4			928.3		928.3	(16.9)
Shares issued in connection with the Virgin Media Acquisition and impacts of related change in parent entity (notes 1 and 3)	9,375.3	9,374.1				9,375.3		2.1	0.1	1.6	(1.4)	(0.1)	(1.1)
Revaluation of VM Convertible Notes in connection with the Virgin Media Acquisition (notes 3 and 9)	1,660.0	1,660.0				1,660.0
Repurchase and cancellation of LGI common stock (note 11)	(1,151.9)	(1,151.7)				(1,151.9)		(0.1)		(0.1)
Share-based compensation (note 12)	206.3	206.3				206.3
Exchange of VM Convertible Notes (note 9)	113.7	113.5				113.7		0.1		0.1
Distributions by subsidiaries to noncontrolling interest owners (note 11)	(542.7)						(542.7)
Purchase of additional Telenet shares (note 11)	(462.2)	(525.7)				(525.7)	63.5
Adjustments due to changes in subsidiaries’ equity and other, net	252.2	181.3			(7.7)	173.7	78.5	0.1
Ending balance at Dec. 31, 2013	$ 11,541.5	$ 12,813.4	$ (3,312.6)	$ 2,528.8	$ (7.7)	$ 12,025.8	$ (484.3)	$ 2.2	$ 0.1	$ 1.6	$ 0	$ 0	$ 0