Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 43	$ (9)	$ 8	$ 22
Currency translation adjustments
Currency translation gains (loss)	(53)	8	(79)	1
Derivatives
Unrealized gains (loss) on derivatives	21	0	78	0
Loss (gains) on derivatives recognized during the period	5	0	6	0
Less income tax	(6)	0	(19)	0
Employee benefit plans
Amortization of prior service cost (benefit)	0	0	(1)	(1)
Less income tax	0	0	0	0
Other comprehensive income (loss)	(33)	8	(15)	0
Total comprehensive income (loss)	10	(1)	(7)	22
Less comprehensive income (loss) attributable to noncontrolling interests:
Net income (loss)	2	0	1	1
Currency translation losses	(1)	0	(1)	0
Amounts attributable to noncontrolling interests	1	0	0	1
Comprehensive income (loss) attributable to NCR	$ 9	$ (1)	$ (7)	$ 21