BUSINESS COMBINATIONS - Additional Information (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions				3 Months Ended	6 Months Ended		12 Months Ended
	Jul. 01, 2022	Jan. 05, 2022	Jun. 21, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Apr. 06, 2021
Business Acquisition [Line Items]
Loss on divestiture							$ 9.0	$ 0.0	$ 0.0
Restricted cash					$ 228.0	$ 295.0	$ 228.0	295.0
Expected tax deductible amount of goodwill						9.0		9.0
Revenue of acquiree since acquisition date						627.0
Cardtronics income from operations before income taxes						39.0
5.125% Senior Notes due 2029
Business Acquisition [Line Items]
Interest rate, stated percentage									5.125%	5.125%
Cardtronics
Business Acquisition [Line Items]
Transaction costs						$ 46.0		46.0
LibertyX
Business Acquisition [Line Items]
Share consideration value		$ 1.0
New issues (in shares)		1.4
Acquired share price (in dollars per share)		$ 42.13
Number of shares converted (in shares)		0.2
Total purchase consideration		$ 69.0
FIS Payment Solutions & Services Private Limited
Business Acquisition [Line Items]
Total purchase consideration	$ 19.0
Payments to acquire businesses, gross					$ 12.0
Cardtronics
Business Acquisition [Line Items]
Acquired share price (in dollars per share)			$ 39.00
Total purchase consideration			$ 2,674.0
Expected tax deductible amount of goodwill			139.0
Pro forma eliminations, revenue								53.0	$ 91.0
Pro forma expensesincremental amortization changes attributable to acquiree								25.0	51.0
Pro forma expenses transactions costs								87.0	65.0
Pro forma expenses incremental interest charges attributable to acquiree								35.0	$ 79.0
Debt repaid by NCR on behalf of Cardtronics			$ 809.0
Freshop, Terafina, Dumac
Business Acquisition [Line Items]
Total purchase consideration				$ 126.0				$ 126.0