Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net income (loss)	$ 447	$ 481	$ (191)
Other comprehensive income (loss):
Currency translation adjustments	(53)	(8)	(17)
Unrealized gain (loss) on derivatives	2	(14)	(12)
Losses on derivatives arising during the period	6	1	4
Less income tax (expense) benefit	(3)	3	3
Unrealized gain (loss) on securities	3	0	(1)
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax	(1)	0	0
Employee benefit plans
Prior service (cost) benefit during the year	(5)	(2)	37
Amortization of prior service benefit	(30)	(17)	(14)
Net gain arising during the year	82	0	24
Amortization of actuarial loss	8	14	17
Less income tax (expense) benefit	(17)	1	(20)
Other comprehensive (loss) income	(8)	(22)	21
Total comprehensive income (loss)	439	459	(170)
Less comprehensive income attributable to noncontrolling interests:
Net income (loss) attributable to noncontrolling interests	4	0	(1)
Currency translation adjustments	(7)	(4)	2
Amounts attributable to noncontrolling interests	(3)	(4)	1
Comprehensive income (loss) attributable to NCR common stockholders	$ 442	$ 463	$ (171)