SCHEDULE I (Parent Company Information) CONDENSED BALANCE SHEET (Details) - USD ($) $ in Millions	Dec. 31, 2023	Nov. 22, 2023	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 1,415.9		$ 1,726.2	$ 910.6
Current notes receivable — related-party	870.1		830.6
Other current assets	847.0		736.3
Total current assets	5,641.6		6,297.4
Total assets	42,087.9		42,895.0
Current liabilities:
Accounts payable	689.8		610.1
Other accrued and current liabilities	1,666.8		1,470.4
Total current liabilities	4,332.8		3,921.0
Other long-term liabilities	2,136.5		1,791.2
Total liabilities	23,080.5		20,321.6
Commitments and contingencies
Additional paid-in capital	1,322.6		2,300.8
Accumulated earnings	15,566.0		19,617.7
Accumulated other comprehensive earnings, net of taxes	2,170.3		513.4
Treasury shares, at cost	(0.1)		(0.1)
Total Liberty Global shareholders	19,062.6		22,436.4
Total liabilities and equity	42,087.9		42,895.0
Liberty Global Plc
Current assets:
Cash and cash equivalents		$ 0.7	1.8	$ 1.7
Other receivables — related-party	4.1
Other current assets			7.5
Total current assets	4.1		99.9
Investments in consolidated subsidiaries, including intercompany balances	19,073.7		51,050.7
Other assets, net	17.6		16.8
Total assets	19,095.4		51,357.4
Current liabilities:
Accounts payable			1.1
Current portion of notes payable — related-party			12,590.2
Other accrued and current liabilities	11.3		25.0
Total current liabilities	11.9		12,695.4
Other long-term liabilities	20.9		24.7
Total liabilities	32.8		28,921.0
Commitments and contingencies
Additional paid-in capital	1,322.6		2,300.8
Accumulated earnings	15,566.0		19,617.7
Accumulated other comprehensive earnings, net of taxes	2,170.3		513.4
Treasury shares, at cost	(0.1)
Total Liberty Global shareholders	19,062.6		22,436.4
Total liabilities and equity	19,095.4		51,357.4
Liberty Global Plc | Related Party
Current assets:
Other receivables — related-party			89.8
Current notes receivable — related-party			0.8
Long-term notes receivable — related-party			190.0
Current liabilities:
Other payables — related-party			78.5
Other current liabilities — related-party	0.6		0.6
Long-term notes payable — related-party			16,200.9
Class A
Current liabilities:
Common stock	1.7		1.8
Class A | Liberty Global Plc
Current liabilities:
Common stock	1.7		1.8
Class B
Current liabilities:
Common stock	0.1		0.1
Class B | Liberty Global Plc
Current liabilities:
Common stock	0.1		0.1
Class C
Current liabilities:
Common stock	2.0		2.7
Class C | Liberty Global Plc
Current liabilities:
Common stock	$ 2.0		$ 2.7