Condensed Consolidated Statements of Equity (unaudited) - USD ($) $ in Millions	Total	Total Liberty Global shareholders	Ordinary shares Class A	Ordinary shares Class B	Ordinary shares Class C	Additional paid-in capital	Accumulated deficit	Accumulated other comprehensive earnings, net of taxes	Treasury shares, at cost	Non-controlling interests
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting change (note 2)	$ 324.5	$ 320.1					$ 320.1			$ 4.4
Balance, as adjusted for accounting change	6,717.5	7,125.1	$ 2.2	$ 0.1	$ 5.8	$ 11,358.6	(5,897.5)	$ 1,656.0	$ (0.1)	(407.6)
Balance, before effect of accounting change at Dec. 31, 2017	6,393.0	6,805.0	2.2	0.1	5.8	11,358.6	(6,217.6)	1,656.0	(0.1)	(412.0)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	(1,178.6)	(1,186.5)					(1,186.5)			7.9
Other comprehensive loss, net of taxes	592.2	592.2						592.2		0.0
Repurchase and cancellation of Liberty Global ordinary shares (note 12)	(496.3)	(496.3)			(0.1)	(496.2)
Repurchase by Telenet of its outstanding shares	(32.1)	(34.7)				(34.7)				2.6
Share-based compensation (note 13)	40.4	40.4				40.4
Adjustments due to changes in subsidiaries’ equity and other, net	(8.4)	(7.6)				(7.6)				(0.8)
Balance at Mar. 31, 2018	5,634.7	6,032.6	2.2	0.1	5.7	10,860.5	(7,084.0)	2,248.2	(0.1)	(397.9)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting change (note 2)	1.2	1.2					1.2
Balance, as adjusted for accounting change	4,149.5	4,682.6	2.0	0.1	5.3	9,214.5	(5,171.0)	631.8	(0.1)	(533.1)
Balance, before effect of accounting change at Dec. 31, 2018	4,148.3	4,681.4	2.0	0.1	5.3	9,214.5	(5,172.2)	631.8	(0.1)	(533.1)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	15.7	7.0					7.0			8.7
Other comprehensive loss, net of taxes	(135.0)	(135.2)						(135.2)		0.2
Repurchase and cancellation of Liberty Global ordinary shares (note 12)	(214.1)	(214.1)			(0.1)	(214.0)
Repurchase by Telenet of its outstanding shares	(56.9)	(68.2)				(68.2)				11.3
Share-based compensation (note 13)	55.6	55.6				55.6
Adjustments due to changes in subsidiaries’ equity and other, net	34.8	32.4				32.4				2.4
Balance at Mar. 31, 2019	$ 3,849.6	$ 4,360.1	$ 2.0	$ 0.1	$ 5.2	$ 9,020.3	$ (5,164.0)	$ 496.6	$ (0.1)	$ (510.5)

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