Accounting Policies and Supplemental Disclosures - Video and Music Content (Details) - USD ($) $ in Billions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Accounting Policies [Abstract]
Digital video and music content, capitalized costs	$ 16.3		$ 16.3		$ 10.7
Digital video and music content, expense	$ 4.2	$ 3.3	$ 11.4	$ 9.4