Condensed Consolidated Statements of Comprehensive Earnings (Loss) (unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Statement of Comprehensive Income [Abstract]
Net earnings (loss)	$ 109.1	$ (409.9)	$ (263.6)	$ (931.6)
Other comprehensive earnings (loss), net of taxes:
Foreign currency translation adjustments	(1,010.8)	929.7	(994.2)	238.6
Reclassification adjustments included in net earnings (loss)	0.1	0.9	(0.6)	1.0
Other	(1.7)	0.5	(4.6)	(1.0)
Other comprehensive earnings (loss)	(1,012.4)	931.1	(999.4)	238.6
Comprehensive earnings (loss)	(903.3)	521.2	(1,263.0)	(693.0)
Comprehensive earnings attributable to noncontrolling interests	(7.1)	(54.8)	(3.5)	(70.7)
Comprehensive earnings (loss) attributable to Liberty Global shareholders	$ (910.4)	$ 466.4	$ (1,266.5)	$ (763.7)