Condensed Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Net income	$ 15	$ 100	$ 160	$ 250
Currency translation adjustments
Currency translation adjustments	(47)	7	(17)	(49)
Derivatives
Unrealized gain (loss) on derivatives	1	(3)	(1)	3
Losses on derivatives arising during the period	1	1	4	4
Less income tax expense	0	0	(1)	(3)
Securities
Unrealized gain on securities	0	0	0	3
Less income tax expense	0	(1)	0	(1)
Employee benefit plans
New prior service cost	0	(3)	0	(3)
Amortization of prior service benefit	(4)	(5)	(15)	(27)
Net (loss) gain arising during the period	0	(12)	0	36
Amortization of actuarial loss	0	3	1	6
Less income tax benefit (expense)	1	1	5	(9)
Other comprehensive loss	(48)	(12)	(24)	(40)
Total comprehensive (loss) income	(33)	88	136	210
Less comprehensive income attributable to noncontrolling interests:
Net income	0	2	2	5
Currency translation adjustments	(2)	(1)	(2)	(4)
Amounts attributable to noncontrolling interests	(2)	1	0	1
Comprehensive (loss) income attributable to NCR common stockholders	$ (31)	$ 87	$ 136	$ 209