Condensed Consolidated Statements of Comprehensive Earnings (Loss) (unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement of Comprehensive Income [Abstract]
Net earnings	$ 1,110.3	$ 1,440.3
Other comprehensive loss, net of taxes:
Foreign currency translation adjustments	(1,185.3)	(951.6)
Reclassification adjustment included in net earnings (note 4)	(1.0)	0.0
Pension-related adjustments and other	2.0	(0.1)
Other comprehensive loss from continuing operations	(1,184.3)	(951.7)
Other comprehensive loss from discontinued operations (note 4)	(33.5)	(45.1)
Other comprehensive earnings (loss)	(1,217.8)	(996.8)
Comprehensive earnings (loss)	(107.5)	443.5
Comprehensive earnings attributable to noncontrolling interests	(72.5)	(54.9)
Comprehensive earnings (loss) attributable to Liberty Global shareholders	$ (180.0)	$ 388.6