Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Assets
Card Member receivables, reserves for credit losses	$ 184	$ 162
Card Member loans, reserves for credit losses	$ 23	$ 10
Shareholder’s Equity
Common shares, par value (in dollars per share)	$ 0.10	$ 0.10
Common shares, authorized	3,000,000	3,000,000
Common shares, issued	1,500,000	1,500,000
Common shares, outstanding	1,500,000	1,500,000
Accumulated other comprehensive loss
Foreign currency translation adjustments, tax	$ 86	$ 25