Accounting Policies and Supplemental Disclosures - Video and Music Content (Details) - USD ($) $ in Billions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Accounting Policies [Abstract]
Digital video and music content, capitalized costs	$ 17.9		$ 17.4
Digital video and music content, expense	$ 4.6	$ 4.0