Consolidated Statement of Cash Flows (Parenthetical) - USD ($) $ in Millions		Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Statement of Cash Flows [Abstract]
Cash and cash equivalents per Consolidated Balance Sheets		$ 191	$ 196	$ 1,245	$ 1,211
Restricted cash included in Other assets per Consolidated Balance Sheets	[1]	99	100	0	0
Total Cash, cash equivalents and restricted cash		$ 290	$ 296	$ 1,245	$ 1,211

[1] R epresents cash placed with Amex Bank of Canada relating to the collateralized loan arrangement for transfer of Card Member loans and the purchase of Card Member Receivables .