Condensed Consolidated Statements of Comprehensive Loss (unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net earnings (loss)	$ (713.5)	$ 1,110.3
Other comprehensive earnings (loss), net of taxes:
Foreign currency translation adjustments	701.3	(1,185.3)
Reclassification adjustments included in net earnings (loss)	(0.2)	(1.0)
Pension-related adjustments and other	(3.5)	2.0
Other comprehensive earnings (loss) from continuing operations	697.6	(1,184.3)
Other comprehensive loss from discontinued operations (note 4)	0.0	(33.5)
Other comprehensive earnings (loss)	697.6	(1,217.8)
Comprehensive loss	(15.9)	(107.5)
Comprehensive earnings attributable to noncontrolling interests	(8.4)	(72.5)
Comprehensive loss attributable to Liberty Global shareholders	$ (24.3)	$ (180.0)