Segments and Geographic Information - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Segment Reporting Information [Line Items]
Total revenue	$ 2,162	$ 2,144
Cost of services	(1,026)	(1,015)
Segment gross profit	1,136	1,129
Subscriber revenue
Segment Reporting Information [Line Items]
Total revenue	1,680	1,691
Advertising revenue
Segment Reporting Information [Line Items]
Total revenue	402	375
Equipment revenue
Segment Reporting Information [Line Items]
Total revenue	50	46
Other revenue
Segment Reporting Information [Line Items]
Total revenue	30	32
Sirius XM
Segment Reporting Information [Line Items]
Total revenue	1,667	1,682
Cost of services	(674)	(664)
Segment gross profit	993	1,018
Sirius XM | Subscriber revenue
Segment Reporting Information [Line Items]
Total revenue	1,547	1,563
Sirius XM | Advertising revenue
Segment Reporting Information [Line Items]
Total revenue	40	41
Sirius XM | Equipment revenue
Segment Reporting Information [Line Items]
Total revenue	50	46
Sirius XM | Other revenue
Segment Reporting Information [Line Items]
Total revenue	30	32
Pandora and Off-platform
Segment Reporting Information [Line Items]
Total revenue	495	462
Cost of services	(352)	(351)
Segment gross profit	143	111
Pandora and Off-platform | Subscriber revenue
Segment Reporting Information [Line Items]
Total revenue	133	128
Pandora and Off-platform | Advertising revenue
Segment Reporting Information [Line Items]
Total revenue	362	334
Pandora and Off-platform | Equipment revenue
Segment Reporting Information [Line Items]
Total revenue	0	0
Pandora and Off-platform | Other revenue
Segment Reporting Information [Line Items]
Total revenue	$ 0	$ 0