SCHEDULE I (Parent Company Information) CONDENSED STATEMENT OF CASH FLOWS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities:
Net earnings (loss)	$ 1,473.2	$ 13,426.8	$ (1,628.0)
Adjustments to reconcile net earnings (loss) to net cash used by operating activities:
Share-based compensation expense	192.1	308.1	348.0
Depreciation and amortization	2,171.4	2,353.7	2,227.2
Realized and unrealized gains (losses) on derivative instruments, net (note 8)	(1,191.7)	(622.9)	878.7
Foreign currency transaction losses (gains), net	(1,407.2)	(1,324.5)	1,409.3
Deferred income tax expense (benefit)	172.5	318.2	(262.9)
Changes in operating assets and liabilities:
Payables and accruals	(755.9)	(872.3)	(830.7)
Net cash provided by operating activities	2,837.8	3,549.0	4,185.8
Cash flows from investing activities:
Cash released from (used to fund) the Vodafone Escrow Accounts, net	6.5	214.9	104.9
Other investing activities, net	0.0	(96.7)	(30.2)
Net cash provided (used) by investing activities	1,281.0	(5,796.5)	(8,874.0)
Cash flows from financing activities:
Repurchases of Liberty Global ordinary shares	(1,703.4)	(1,580.4)	(1,072.3)
Borrowings of third-party debt	4.7	2,570.7	13,205.8
Other financing activities, net	(88.7)	(98.1)	(71.9)
Net cash provided (used) by financing activities	(3,276.0)	(1,545.9)	1,083.6
Effect of exchange rate changes on cash and cash equivalents and restricted cash	(27.7)	(6.6)	141.0
Total	815.1	(3,800.0)	(3,463.6)
Details of end of year cash and cash equivalents and restricted cash:
Cash and cash equivalents	1,726.2	910.6	1,327.2
Liberty Global Plc
Cash flows from operating activities:
Net earnings (loss)	1,473.2	13,426.8	(1,628.0)
Adjustments to reconcile net earnings (loss) to net cash used by operating activities:
Equity in loss (earnings) of consolidated subsidiaries, net	(2,726.4)	(14,530.5)	401.0
Share-based compensation expense	28.4	49.4	30.4
Related-party fees and allocations	239.3	182.5	36.0
Depreciation and amortization	1.2	1.4	1.4
Realized and unrealized gains (losses) on derivative instruments, net (note 8)	(61.5)	(9.0)	0.0
Foreign currency transaction losses (gains), net	(274.8)	(317.7)	330.2
Deferred income tax expense (benefit)	0.0	15.1	(15.1)
Changes in operating assets and liabilities:
Receivables and other operating assets	138.5	85.3	(135.0)
Payables and accruals	654.7	709.9	865.9
Net cash provided by operating activities	(527.4)	(386.8)	(113.2)
Cash flows from investing activities:
Net cash received related to derivative instruments	50.0	0.0	0.0
Distributions and repayments from (investments in and advances to) consolidated subsidiaries, net	22.4	(274.8)	(494.1)
Cash released from (used to fund) the Vodafone Escrow Accounts, net	6.5	214.9	104.9
Other investing activities, net	0.0	(0.1)	(0.1)
Net cash provided (used) by investing activities	78.9	(60.0)	(389.3)
Cash flows from financing activities:
Borrowings of related-party debt	2,187.8	2,445.3	2,087.5
Repayments of related-party debt	(26.5)	(443.3)	(483.2)
Repurchases of Liberty Global ordinary shares	(1,703.4)	(1,580.4)	(1,072.3)
Proceeds from the issuance of Liberty Global shares upon exercise of options	13.0	8.9	2.2
Other financing activities, net	(20.8)	(15.3)	(5.1)
Net cash provided (used) by financing activities	450.1	415.2	529.1
Effect of exchange rate changes on cash and cash equivalents and restricted cash	(1.5)	0.1	(0.2)
Total	0.1	(31.5)	26.4
Cash and cash equivalents and restricted cash:
Beginning of year	6.8	38.3	11.9
End of year	6.9	6.8	38.3
Details of end of year cash and cash equivalents and restricted cash:
Cash and cash equivalents	1.8	1.7	33.1
Restricted cash included in other current assets	5.1	5.1	5.2
Total cash and cash equivalents and restricted cash	$ 6.9	$ 6.8	$ 38.3