Condensed Consolidated Statements of Operations (unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenue (notes 4 and 15)	$ 4,429.9	$ 4,588.0
Operating costs and expenses (exclusive of depreciation and amortization, shown separately below):
Programming and other direct costs of services (note 14)	1,033.9	1,056.3
Other operating (note 11)	689.7	672.1
Selling, general and administrative (SG&A) (notes 11 and 14)	786.7	813.1
Depreciation and amortization (note 7)	1,322.2	1,435.5
Impairment, restructuring and other operating items, net (notes 3, 7 and 12)	28.2	24.4
Operating costs and expenses, Total	3,860.7	4,001.4
Operating income	569.2	586.6
Non-operating income (expense):
Interest expense	(547.5)	(619.3)
Realized and unrealized losses on derivative instruments, net (note 5)	(269.1)	(508.7)
Foreign currency transaction gains, net	78.9	339.0
Realized and unrealized gains (losses) due to changes in fair values of certain investments and debt, net (notes 4, 6 and 8)	94.4	(268.2)
Losses on debt modification and extinguishment, net (note 8)	(45.3)	(4.3)
Share of losses of affiliates, net (notes 4 and 11)	(15.4)	(27.9)
Other income, net	14.4	81.2
Non-operating income (expense), Total	(689.6)	(1,008.2)
Loss before income taxes	(120.4)	(421.6)
Income tax benefit (expense) (note 9)	(146.8)	48.9
Net loss	(267.2)	(372.7)
Net loss (earnings) attributable to noncontrolling interests	(53.0)	3.6
Net loss attributable to Liberty Global shareholders	(320.2)	(369.1)
Liberty Global Group [Member]
Non-operating income (expense):
Net loss attributable to Liberty Global shareholders	$ (292.9)	$ (330.6)
Basic and diluted loss attributable to Liberty Global shareholders per share (notes 1 and 13):
Basic and diluted earnings (loss) attributable to Liberty Global shareholders per share (in dollars per share)	$ (0.33)	$ (0.39)
Weighted average ordinary shares outstanding - basic and diluted:
Weighted average ordinary shares outstanding - basic and diluted (in shares)	890,464,735	843,492,613
LiLAC Group [Member]
Non-operating income (expense):
Net loss attributable to Liberty Global shareholders	$ (27.3)	$ (38.5)
Basic and diluted loss attributable to Liberty Global shareholders per share (notes 1 and 13):
Basic and diluted earnings (loss) attributable to Liberty Global shareholders per share (in dollars per share)	$ (0.16)	$ (0.88)
Weighted average ordinary shares outstanding - basic and diluted:
Weighted average ordinary shares outstanding - basic and diluted (in shares)	172,743,854	43,933,746