Shareholders' Equity, Rollforward (Details) (USD $) In Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011		Sep. 30, 2010
Shareholders' Equity [Roll Forward]
Balance at beginning of period			$ 12,159		$ 7,191
Net income	329	256	945		458
Translation adjustments			67		15
Changes in benefit plans	44	(19)	22	[1]	100	[1]
Other unrealized gains, net			13		2
Comprehensive income	18	789	1,047		575
ACS Acquisition					4,315	[2]
Cash dividends declared-common stock			(182)	[3]	(182)	[3]
Cash dividends declared-preferred stock	(6)	(6)	(18)	[4]	(15)	[4]
Contribution of common stock to U.S. pension plan			130
Stock option and incentive plans			107		194
Tax loss on stock option and incentive plans, net			(2)		(6)
Payments to acquire treasury stock, including fees			(309)	[5]
Distributions to noncontrolling interests			(13)		(16)
Other			1
Balance at end of period	12,920	12,056	12,920		12,056
Xerox Shareholders Equity [Member]
Shareholders' Equity [Roll Forward]
Balance at beginning of period			12,006		7,050
Net income			920		435
Translation adjustments			67		15
Changes in benefit plans			22	[1]	100	[1]
Other unrealized gains, net			13		2
Comprehensive income			1,022		552
ACS Acquisition					4,315	[2]
Cash dividends declared-common stock			(182)	[3]	(182)	[3]
Cash dividends declared-preferred stock			(18)	[4]	(15)	[4]
Contribution of common stock to U.S. pension plan			130
Stock option and incentive plans			107		194
Tax loss on stock option and incentive plans, net			(2)		(6)
Payments to acquire treasury stock, including fees			(309)
Distributions to noncontrolling interests			0		0
Other			0
Balance at end of period	12,754	11,908	12,754		11,908
Common Stock [Member]
Shareholders' Equity [Roll Forward]
Balance at beginning of period			1,398		871
Net income			0		0
Translation adjustments			0		0
Changes in benefit plans			0	[1]	0	[1]
Other unrealized gains, net			0		0
ACS Acquisition					490	[2]
Cash dividends declared-common stock			0	[3]	0	[3]
Cash dividends declared-preferred stock			0	[4]	0	[4]
Contribution of common stock to U.S. pension plan			17
Stock option and incentive plans			10		27
Tax loss on stock option and incentive plans, net			0		0
Distributions to noncontrolling interests			0		0
Other			0
Balance at end of period	1,425	1,388	1,425		1,388
Additional Paid-in Capital [Member]
Shareholders' Equity [Roll Forward]
Balance at beginning of period			6,580		2,493
Net income			0		0
Translation adjustments			0		0
Changes in benefit plans			0	[1]	0	[1]
Other unrealized gains, net			0		0
ACS Acquisition					3,825	[2]
Cash dividends declared-common stock			0	[3]	0	[3]
Cash dividends declared-preferred stock			0	[4]	0	[4]
Contribution of common stock to U.S. pension plan			113
Stock option and incentive plans			97		167
Tax loss on stock option and incentive plans, net			(2)		(6)
Distributions to noncontrolling interests			0		0
Other			0
Balance at end of period	6,788	6,479	6,788		6,479
Treasury Stock [Member]
Shareholders' Equity [Roll Forward]
Balance at beginning of period			0
Payments to acquire treasury stock, including fees			(309)
Balance at end of period	(309)		(309)
Retained Earnings [Member]
Shareholders' Equity [Roll Forward]
Balance at beginning of period			6,016		5,674
Net income			920		435
Translation adjustments			0		0
Changes in benefit plans			0	[1]	0	[1]
Other unrealized gains, net			0		0
ACS Acquisition					0	[2]
Cash dividends declared-common stock			(182)	[3]	(182)	[3]
Cash dividends declared-preferred stock			(18)	[4]	(15)	[4]
Stock option and incentive plans			0		0
Tax loss on stock option and incentive plans, net			0		0
Distributions to noncontrolling interests			0		0
Other			0
Balance at end of period	6,736	5,912	6,736		5,912
Accumulated Other Comprehensive Loss [Member]
Shareholders' Equity [Roll Forward]
Balance at beginning of period			(1,988)		(1,988)
Net income			0		0
Translation adjustments			67		15
Changes in benefit plans			22	[1]	100	[1]
Other unrealized gains, net			13		2
ACS Acquisition					0	[2]
Cash dividends declared-common stock			0	[3]	0	[3]
Cash dividends declared-preferred stock			0	[4]	0	[4]
Stock option and incentive plans			0		0
Tax loss on stock option and incentive plans, net			0		0
Distributions to noncontrolling interests			0		0
Other			0
Balance at end of period	(1,886)	(1,871)	(1,886)		(1,871)
Non-controlling interests [Member]
Shareholders' Equity [Roll Forward]
Balance at beginning of period			153		141
Net income			25		23
Translation adjustments			0		0
Changes in benefit plans			0	[1]	0	[1]
Other unrealized gains, net			0		0
Comprehensive income			25		23
ACS Acquisition					0	[2]
Cash dividends declared-common stock			0	[3]	0	[3]
Cash dividends declared-preferred stock			0	[4]	0	[4]
Stock option and incentive plans			0		0
Tax loss on stock option and incentive plans, net			0		0
Distributions to noncontrolling interests			(13)		(16)
Other			1
Balance at end of period	$ 166	$ 148	$ 166		$ 148

[1] Refer to Note 13, Employee Benefit Plans for additional information.

[2] Refer to Note 4 – Acquisitions for additional information.

[3] Cash dividends declared on common stock of $0.0425 per share in each quarter of 2011 and 2010.

[4] Cash dividends declared on preferred stock of $20.00 per share in each quarter of 2011 and 2010 except the first quarter of 2010 which was $12.22 per share.

[5] Includes associated fees of $1.