Condensed Consolidating Supplemental Guarantor Information Narrative (Details) - Guarantor Subsidiaries [Member] - NCR International, Inc. [Member]	12 Months Ended
	Dec. 31, 2019
Condensed Financial Information Disclosure [Line Items]
Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions	100.00%
5% Notes Due 2022 [Member]
Condensed Financial Information Disclosure [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.00%
6.375% Notes due 2023 [Member]
Condensed Financial Information Disclosure [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.375%