Other Liabilities - Deferred Card and Other Fees (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Other Liabilities Disclosure [Abstract]
Deferred card and other fees	$ 3,818	$ 3,380
Deferred direct acquisition costs	(158)	(173)
Reserves for membership cancellations	(218)	(180)
Deferred card and other fees, net	$ 3,442	$ 3,027