Segment Reporting, Reconciliation Of Operating Profit Loss (Details) (USD $) In Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Reconciliation to Pre-tax Income (Loss) [Abstract]
Pre-tax income (loss)	$ 401	$ 320	$ 751	$ 310
Segment Profit (Loss)	549	499	1,015	831
Segment Reporting Information Technology [Member]
Reconciliation to Pre-tax Income (Loss) [Abstract]
Segment Profit (Loss)	300	273	566	506
Segment Reporting Information Services [Member]
Reconciliation to Pre-tax Income (Loss) [Abstract]
Segment Profit (Loss)	322	319	588	522
Segment Reporting Reconciling Items Restructuring And Asset Impairment Charges [Member]
Reconciliation to Pre-tax Income (Loss) [Abstract]
Pre-tax income (loss)	9	(11)	24	(206)
Segment Reporting Reconciling Items Restructuring Charges Of Fuji Xerox [Member]
Reconciliation to Pre-tax Income (Loss) [Abstract]
Pre-tax income (loss)	(4)	(5)	(15)	(27)
Segment Reporting Reconciling Items Acquisition Related Costs [Member]
Reconciliation to Pre-tax Income (Loss) [Abstract]
Pre-tax income (loss)	0	(15)	0	(63)
Segment Reporting Reconciling Items Amortization Of Intangible Assets [Member]
Reconciliation to Pre-tax Income (Loss) [Abstract]
Pre-tax income (loss)	(87)	(85)	(172)	(142)
Segment Reporting Reconciling Items Venezuelan Devaluation Costs [Member]
Reconciliation to Pre-tax Income (Loss) [Abstract]
Pre-tax income (loss)	0	0	0	(21)
Segment Reporting Reconciling Items Equity In Net (Income) Loss Of Unconsolidated Affiliates [Member]
Reconciliation to Pre-tax Income (Loss) [Abstract]
Pre-tax income (loss)	(34)	(28)	(68)	(26)
Segment Reporting Reconciling Items Other [Member]
Reconciliation to Pre-tax Income (Loss) [Abstract]
Pre-tax income (loss)	1	1	0	0
Segment Reporting Reconciling Items ACS Shareholders Litigation Settlement [Member]
Reconciliation to Pre-tax Income (Loss) [Abstract]
Pre-tax income (loss)	0	(36)	0	(36)
Segment Reporting Reconciling Items Loss on Early Extinguishment of Liability [Member]
Reconciliation to Pre-tax Income (Loss) [Abstract]
Pre-tax income (loss)	$ (33)	$ 0	$ (33)	$ 0