SCHEDULE I (Parent Company Information) CONDENSED BALANCE SHEETS (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jun. 07, 2013
Current assets:
Cash and cash equivalents	$ 1,158.5	$ 2,701.9	$ 2,038.9	$ 1,651.2
Other current assets	335.9	236.9
Total current assets	3,920.5	5,482.6
Total assets	72,841.9	67,714.3
Current liabilities:
Accounts payable	1,039.0	1,072.9
Accrued liabilities and other	3,045.4	2,344.0
Total current liabilities	9,190.3	7,683.0
Other long-term liabilities	4,927.5	4,789.1
Total liabilities	58,725.9	56,172.8
Commitments and contingencies
Additional paid-in capital	17,070.8	12,809.4
Accumulated deficit	(4,007.6)	(3,312.6)
Accumulated other comprehensive earnings, net of taxes	1,646.6	2,528.8
Treasury shares, at cost	(4.2)	(7.7)
Total stockholders’ equity	14,714.5	12,025.8
Total liabilities and equity	72,841.9	67,714.3
Liberty Global [Member]
Current assets:
Cash and cash equivalents	36.7	290.7			0
Interest receivables — related-party	448.7	247.1
Other receivables — related-party	157.8	260.4
Current notes receivable — related-party	5,666.8	0
Other current assets	7.5	9.6
Total current assets	6,317.5	807.8
Long-term notes receivable — related-party	9,656.9	9,557.6
Investments in consolidated subsidiaries, including intercompany balances	750.0	1,742.8
Other assets, net	4.2	3.0
Total assets	16,728.6	12,111.2
Current liabilities:
Accounts payable	46.4	11.4
Other payables — related-party	105.3	47.1
Debt — related-party	679.2	0
Accrued liabilities and other	16.0	6.7
Total current liabilities	846.9	65.2
Long-term notes payable — related-party	18.9	18.6
Other long-term liabilities — related-party	1,146.6	0
Other long-term liabilities	1.7	1.6
Total liabilities	2,014.1	85.4
Commitments and contingencies
Total stockholders’ equity	14,714.5	12,025.8
Total liabilities and equity	16,728.6	12,111.2
Class A ordinary shares, $0.01 nominal value. Issued and outstanding 251,167,686 and 222,081,117 shares, respectively
Current liabilities:
Common stock	2.5	2.2
Class B ordinary shares, $0.01 nominal value. Issued and outstanding 10,139,184 and 10,147,184 shares, respectively
Current liabilities:
Common stock	0.1	0.1
Class C ordinary shares, $0.01 nominal value. Issued and outstanding 630,353,372 and 556,221,669 shares, respectively
Current liabilities:
Common stock	$ 6.3	$ 5.6