Condensed Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Net income	$ 91	$ 87	$ 145	$ 150
Currency translation adjustments
Currency translation adjustments	23	(33)	30	(56)
Derivatives
Unrealized (loss) gain on derivatives	(1)	4	(2)	6
Losses on derivatives arising during the period	2	1	3	3
Less income tax expense	(1)	(2)	(1)	(3)
Securities
Unrealized gain on securities	0	0	0	3
Employee benefit plans
Amortization of prior service benefit	(5)	(4)	(11)	(22)
Net gain arising during the period	0	0	0	48
Amortization of actuarial loss	0	1	1	3
Less income tax benefit (expense)	2	2	4	(10)
Other comprehensive income (loss)	20	(31)	24	(28)
Total comprehensive income	111	56	169	122
Less comprehensive income attributable to noncontrolling interests:
Net income	1	1	2	3
Currency translation adjustments	1	(2)	0	(3)
Amounts attributable to noncontrolling interests	2	(1)	2	0
Comprehensive income attributable to NCR common stockholders	$ 109	$ 57	$ 167	$ 122