Equity	9 Months Ended
	Sep. 30, 2021
Equity [Abstract]
Equity	EquityShare Repurchases. During the nine months ended September 30, 2021, we repurchased (i) 5,845,800 shares of our Class A ordinary shares at an average price per share of $27.11 and (ii) 32,700,700 shares of our Class C ordinary shares at an average price per share of $26.55, for an aggregate purchase price of $1,026.8 million, including direct acquisition costs. In July 2021, our board of directors approved a new share repurchase program whereby the authorized amount for share repurchases during 2021 was increased to $1.4 billion, with additional commitments to repurchase a minimum of 10% of our shares outstanding during each of 2022 and 2023. The determination of the number of shares we will be authorized to repurchase during 2022 and 2023 will be based on 10% of the total number of our outstanding shares as of the beginning of each year. At September 30, 2021, the remaining amount authorized for share repurchases during the remainder of 2021 was $378.7 million. Under the repurchase program, Liberty Global may acquire from time to time its Class A ordinary shares, Class C ordinary shares, or any combination of Class A and Class C ordinary shares. The program may be effected through open market transactions and/or privately negotiated transactions, which may include derivative transactions. The timing of the repurchase of shares pursuant to the program will depend on a variety of factors, including market conditions and applicable law. The program may be implemented in conjunction with brokers for the Company and other financial institutions with whom the Company has relationships within certain preset parameters and purchases may continue during closed periods in accordance with applicable restrictions. The program may be suspended or discontinued at any time.