Benefit Plans - Liberty Awards Narrative (Details) $ in Millions	Dec. 31, 2024 USD ($) shares
Retirement Benefits [Abstract]
Common stock reserved for issuance (in shares)	30,000,000
Class of Stock [Line Items]
Share liability | $	$ 2
Common stock reserved for issuance (in shares)	30,000,000
SiriusXM Common Stock
Retirement Benefits [Abstract]
Common stock reserved for issuance (in shares)	4,100,000
Class of Stock [Line Items]
Common stock reserved for issuance (in shares)	4,100,000