Commitments and Contingencies - Loss Contingencies (Details) R$ in Millions, $ in Millions	9 Months Ended
	Sep. 30, 2018 USD ($) defendant affiliate_corporations entity facility number_of_companies	Sep. 30, 2018 BRL (R$)	Dec. 31, 2017 USD ($)
Fox River Site [Member]
Loss Contingencies [Line Items]
Number of Potentially Responsible Parties | entity	8
Number of Previously Owned Carbonless Copy Paper Manufacturing Facilities | facility	2
Threshold For Environmental Cleanup Costs	$ 75
BAT And API Funding Obligation Under The Cost Sharing Agreement	50.00%
BAT And API Obligation Under The Cost Sharing Agreement	60.00%
Receivable under Funding Agreement	$ 42		$ 38
Gross Loss Contingency Accrual	19		36
Net Loss Contingency Accrual	18		35
Total Amount Received from Settlements with Insurance Carriers	$ 202
Kalamazoo River Site [Member]
Loss Contingencies [Line Items]
Additional Companies Receiving General Notice Letters | number_of_companies	3
Total Additional Defendants | defendant	2
Total Corporation Plaintiffs | affiliate_corporations	3
GP Costs incurred in the pasted related to Kalamazoo	$ 50
NCR Share of Costs related to Kalamazoo	40.00%	40.00%
Loss Contingency Accrual	$ 46
Fox River LLC [Member] | Fox River Site [Member]
Loss Contingencies [Line Items]
Fox River LLC Funding Remainder Other Current Asset	$ 0		$ 0
Fox River Site [Member]
Loss Contingencies [Line Items]
Portion Of Costs Below Threshold, Percentage	45.00%
Portion Of Costs Exceeding Threshold, Percentage	40.00%
Foreign Tax Authority [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value	$ 41	R$ 168
Minimum [Member] | Foreign Tax Authority [Member]
Loss Contingencies [Line Items]
Loss Contingency, Range of Possible Loss	0
Maximum [Member] | Foreign Tax Authority [Member]
Loss Contingencies [Line Items]
Loss Contingency, Range of Possible Loss	$ 61