Consolidated Statement of Cash Flows (Parenthetical) - USD ($) $ in Millions		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement of Cash Flows [Abstract]
Cash and cash equivalents per Consolidated Balance Sheets		$ 102	$ 196	$ 1,211
Restricted cash included in Other assets per Consolidated Balance Sheets	[1]	93	100	0
Total Cash, cash equivalents and restricted cash		$ 195	$ 296	$ 1,211

[1] Represents cash deposited with Amex Bank of Canada relating to the purchase of Card Member receivables and the collateralized loan arrangement for transfer of Car d Member loans