CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net earnings (loss)	$ 13,610.1	$ (1,466.7)	$ 11,638.2
Other comprehensive earnings, net of taxes (note 17):
Foreign currency translation adjustments	(1,069.8)	2,586.2	445.0
Reclassification adjustment included in net earnings (loss) (note 6)	1,249.3	(1.5)	(1.3)
Pension-related adjustments and other	80.7	(17.2)	(13.1)
Other comprehensive earnings from continuing operations	260.2	2,567.5	430.6
Other comprehensive earnings (loss) from discontinued operations (note 6)	(59.9)	13.5	51.5
Other comprehensive earnings (loss)	200.3	2,581.0	482.1
Comprehensive earnings	13,810.4	1,114.3	12,120.3
Comprehensive earnings attributable to noncontrolling interests	(184.5)	(161.9)	(118.0)
Comprehensive earnings attributable to Liberty Global shareholders	$ 13,625.9	$ 952.4	$ 12,002.3