Other Liabilities (Details 1) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Carrying amount of deferred charge card and other fees
Deferred card and other fees	$ 2,532	$ 2,208
Deferred direct acquisition costs	(270)	(282)
Reserves for membership cancellations	(200)	(167)
Total	$ 2,062	$ 1,759