Condensed Consolidated Balance Sheets (unaudited) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 2,636.7	$ 1,629.2
Trade receivables, net	1,796.4	1,906.5
Derivative instruments (note 5)	359.7	412.7
Prepaid expenses	255.7	209.4
Receivable from the VodafoneZiggo JV (note 4)	0.0	2,346.6
Other current assets:
Third-party	605.6	526.4
Other Assets, Related Parties, Current	87.5	21.0
Total current assets	5,741.6	7,051.8
Investments and related note receivables (including $2,229.2 million and $2,057.2 million, respectively, measured at fair value on a recurring basis) (note 4)	6,613.9	6,483.7
Property and equipment, net (note 7)	21,403.8	21,110.2
Goodwill (note 7)	23,505.5	23,366.3
Intangible assets subject to amortization, net (note 7)	3,600.6	3,657.7
Other assets, net (note 5)	6,865.5	7,014.4
Total assets	67,730.9	68,684.1
Current liabilities:
Accounts payable	1,208.3	1,168.2
Deferred revenue and advance payments from subscribers and others	1,343.0	1,240.1
Current portion of debt and capital lease obligations (note 8)	2,967.5	2,775.1
Accrued capital expenditures	568.2	765.4
Accrued income taxes	379.6	457.9
Accrued interest	357.0	671.4
Other accrued and current liabilities (notes 5 and 12)	2,354.7	2,644.7
Total current liabilities	9,178.3	9,722.8
Long-term debt and capital lease obligations (note 8)	41,400.0	40,783.6
Other long-term liabilities (notes 5, 9, and 12)	3,351.7	3,445.7
Total liabilities	53,930.0	53,952.1
Commitments and contingencies (notes 3, 5, 8, 9, 14 and 16)
Liberty Global shareholders:
Additional paid-in capital	16,553.1	17,578.2
Accumulated deficit	(3,759.7)	(3,454.8)
Accumulated other comprehensive loss, net of taxes	(132.0)	(372.4)
Treasury shares, at cost	(0.2)	(0.3)
Total Liberty Global shareholders	12,671.6	13,761.3
Noncontrolling interests	1,129.3	970.7
Total equity	13,800.9	14,732.0
Total liabilities and equity	67,730.9	68,684.1
Liberty Global Group [Member]
Current assets:
Derivative instruments (note 5)	350.0	405.5
Other current assets:
Property and equipment, net (note 7)	17,471.0	17,249.3
Goodwill (note 7)	17,351.1	17,063.7
Intangible assets subject to amortization, net (note 7)	2,269.5	2,423.2
Liberty Global shareholders:
Total equity	8.7	8.9
Liberty Global Group [Member] | Common Class A [Member]
Liberty Global shareholders:
Common stock	2.4	2.5
Total equity	2.4	2.5
Liberty Global Group [Member] | Common Class B [Member]
Liberty Global shareholders:
Common stock	0.1	0.1
Total equity	0.1	0.1
Liberty Global Group [Member] | Common Class C [Member]
Liberty Global shareholders:
Common stock	6.2	6.3
Total equity	6.2	6.3
LiLAC Group [Member]
Current assets:
Derivative instruments (note 5)	9.7	7.2
Other current assets:
Property and equipment, net (note 7)	3,932.8	3,860.9
Goodwill (note 7)	6,154.4	6,302.6
Intangible assets subject to amortization, net (note 7)	1,331.1	1,234.5
Liberty Global shareholders:
Total equity	1.7	1.7
LiLAC Group [Member] | Common Class A [Member]
Liberty Global shareholders:
Common stock	0.5	0.5
Total equity	0.5	0.5
LiLAC Group [Member] | Common Class B [Member]
Liberty Global shareholders:
Common stock	0.0	0.0
Total equity	0.0	0.0
LiLAC Group [Member] | Common Class C [Member]
Liberty Global shareholders:
Common stock	1.2	1.2
Total equity	$ 1.2	$ 1.2