Accounting Policies and Supplemental Disclosures - Video and Music Content (Details) - USD ($) $ in Billions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Accounting Policies [Abstract]
Digital video and music content, capitalized costs	$ 17.4		$ 16.7
Weighted average remaining life of capitalized video content	3 years 6 months
Digital video and music content, expense	$ 4.0	$ 3.5