Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Total revenue	$ 1,536	$ 1,517
Selling, general and administrative expenses	252	245
Research and development expenses	59	66
Total operating expenses	1,436	1,408
Income from operations	100	109
Interest expense	(45)	(41)
Other expense, net	(8)	(5)
Income from continuing operations before income taxes	47	63
Income tax expense	9	7
Income from continuing operations	38	56
Loss from discontinued operations, net of tax	0	(35)
Net income	38	21
Net income attributable to noncontrolling interests	1	1
Net income attributable to NCR	37	20
Amounts attributable to NCR common stockholders:
Income from continuing operations	37	55
Dividends on convertible preferred stock	(13)	(12)
Income from continuing operations attributable to NCR common stockholders	24	43
Loss from discontinued operations, net of tax	0	(35)
Net income attributable to NCR common stockholders	$ 24	$ 8
Income per common share from continuing operations
Basic (in dollars per share)	$ 0.20	$ 0.36
Diluted (in dollars per share)	0.20	0.35
Net income per common share
Basic (in dollars per share)	0.20	0.07
Diluted (in dollars per share)	$ 0.20	$ 0.06
Weighted average common shares outstanding
Basic (in shares)	119.3	119.2
Diluted (in shares)	122.2	123.8
Product
Total revenue	$ 539	$ 526
Cost of revenue	453	420
Services
Total revenue	997	991
Cost of revenue	$ 672	$ 677