CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS (LOSS) (unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Statement of Comprehensive Income [Abstract]
Net earnings (loss)	$ (1,323.3)	$ 527.0
Other comprehensive earnings (loss), net of taxes:
Foreign currency translation adjustments	1,627.0	(1,039.3)
Reclassification adjustments included in net earnings (loss)	0.0	(0.8)
Pension-related adjustments and other	(5.1)	1.8
Other comprehensive earnings (loss) from continuing operations	1,621.9	(1,038.3)
Other comprehensive earnings from discontinued operations (note 4)	0.0	11.9
Other comprehensive earnings (loss)	1,621.9	(1,026.4)
Comprehensive earnings (loss)	298.6	(499.4)
Comprehensive earnings attributable to noncontrolling interests	(14.0)	(17.6)
Comprehensive earnings (loss) attributable to Liberty Global shareholders	$ 284.6	$ (517.0)