Investment in Affiliates, at Equity - Condensed Financial Data for Fuji Xerox Unconsolidated Affiliate (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Schedule of Equity Method Investments [Line Items]
Revenues	$ 7,022	$ 9,066	$ 9,662
Costs and expenses	6,770	8,244	9,113
Income tax expense	64	179	247
Income from Continuing Operations	192	651	310
Less: Net income - noncontrolling interests	0	3	4
Net Income - Fuji Xerox	192	1,353	361
Current assets	5,783	6,140
Total Assets	14,741	15,047
Other Liabilities, Current	840	984
Long-term debt	4,050	3,233
Other long-term liabilities	497	512
Noncontrolling interests	4	7
Fuji Xerox shareholders' equity	5,596	5,594	5,039	$ 5,293
Total Liabilities and Equity	$ 14,741	15,047
Fuji Xerox
Schedule of Equity Method Investments [Line Items]
Revenues		7,667	9,161
Costs and expenses		6,814	8,880
Income before income taxes		853	281
Income tax expense		258	160
Income from Continuing Operations		595	121
Less: Net income - noncontrolling interests		3	2
Net Income - Fuji Xerox		592	119
Current assets		4,876	4,179
Long-term assets		3,964	4,034
Total Assets		8,840	8,213
Short-term debt		49	130
Other Liabilities, Current		1,932	1,827
Long-term debt		16	24
Other long-term liabilities		514	395
Noncontrolling interests		18	30
Fuji Xerox shareholders' equity		6,311	5,807
Total Liabilities and Equity		$ 8,840	$ 8,213