Condensed Consolidated Statements of Operations (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Condensed Consolidated Statements of Operations
Product revenue	$ 570	$ 458
Service revenue	674	600
Total revenue	1,244	1,058
Cost of products	446	359
Cost of services	500	480
Selling, general and administrative expenses	199	159
Research and development expenses	50	40
Total operating expenses	1,195	1,038
Income from operations	49	20
Interest expense	(9)	0
Other (expense) income, net	(2)	6
Income from continuing operations before income taxes	38	26
Income tax expense (benefit) expense	(1)	6
Income from continuing operations	39	20
Loss from discontinued operations, net of tax	(9)	(6)
Income from discontinued operations, net of tax	(9)	(6)
Net income	30	14
Net income attributable to noncontrolling interests	1	1
Net income attributable to NCR	29	13
Amounts attributable to NCR common stockholders:
Income from continuing operations	38	19
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax	(9)	(6)
Net income	$ 29	$ 13
Income per share attributable to NCR common stockholders:
Basic	$ 0.24	$ 0.12
Diluted	$ 0.23	$ 0.12
Net income per common share
Basic	$ 0.18	$ 0.08
Diluted	$ 0.18	$ 0.08
Weighted average common shares outstanding
Basic	158.2	159.2
Diluted	162.3	161.7