Investment in Affiliates, at Equity (Details) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended		3 Months Ended				9 Months Ended				3 Months Ended		9 Months Ended
	Sep. 30, 2011 USD ($)	Sep. 30, 2010 USD ($)	Sep. 30, 2011 USD ($)	Sep. 30, 2010 USD ($)	Sep. 30, 2011 Fuji Xerox [Member] USD ($)		Sep. 30, 2010 Fuji Xerox [Member] USD ($)		Sep. 30, 2011 Fuji Xerox [Member] USD ($)		Sep. 30, 2010 Fuji Xerox [Member] USD ($)		Sep. 30, 2011 Other Equity Method Investments [Member] USD ($)	Sep. 30, 2010 Other Equity Method Investments [Member] USD ($)	Sep. 30, 2011 Other Equity Method Investments [Member] USD ($)	Sep. 30, 2010 Other Equity Method Investments [Member] USD ($)
Schedule of Equity Method Investments [Line Items]
Total Equity in Net Income (Loss) of Unconsolidated Affiliates	$ 43	$ 26	$ 111	$ 52	$ 42		$ 23		$ 104		$ 41		$ 1	$ 3	$ 7	$ 11
Ownership percentage (in hundredths)					25.00%				25.00%
After-tax restructuring charges included in equity income									16		33
Summary of Operations:
Revenues					3,330		2,860		9,274		8,326
Cost and expenses					3,042		2,655		8,584		7,894
Income before income taxes					288		205		690		432
Income tax expense					107		97		231		204
Net Income					181		108		459		228
Less: Net income - noncontrolling interests					1		1		3		3
Net Income - Fuji Xerox					$ 180		$ 107		$ 456		$ 225
Weighted Average Rate used to translate the Summary of Operations					77.69	[1]	85.79	[1]	80.37	[1]	89.43	[1]

[1] Represents Yen/U.S. Dollar exchange rate used to translate.