Condensed Consolidated Statements of Comprehensive Earnings (Loss) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Net loss	$ (409.9)	$ (241.2)	$ (931.6)	$ (320.5)
Other comprehensive earnings (loss), net of taxes:
Foreign currency translation adjustments	929.7	416.9	238.6	475.0
Reclassification adjustments included in net loss	0.9	0.1	1.0	64.2
Other	0.5	0.0	(1.0)	0.0
Other comprehensive earnings	931.1	417.0	238.6	539.2
Comprehensive earnings (loss)	521.2	175.8	(693.0)	218.7
Comprehensive earnings attributable to noncontrolling interests	(54.8)	(8.9)	(70.7)	(8.4)
Comprehensive earnings (loss) attributable to Liberty Global shareholders	$ 466.4	$ 166.9	$ (763.7)	$ 210.3