Investment in Affiliates, at Equity - Other Transactions with Fuji Xerox (Details) - Fuji Xerox [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Schedule of Equity Method Investments [Line Items]
Dividends received from Fuji Xerox	$ 46	$ 47	$ 51
Royalty revenue earned	103	110	105
Inventory purchases from Fuji Xerox	1,585	1,641	1,728
Inventory sales to Fuji Xerox	58	80	108
R&D payments received from Fuji Xerox	1	1	1
R&D payments paid to Fuji Xerox	14	13	$ 7
Net amounts due to Fuji Xerox	$ 331	$ 273