Commitments and Contingencies - Loss Contingencies (Details) R$ in Millions, $ in Millions		3 Months Ended	9 Months Ended	12 Months Ended
	Mar. 29, 2018 USD ($) company	Dec. 31, 2018 USD ($)	Sep. 30, 2019 USD ($) defendant entity party number_of_companies affiliate_corporations facility	Dec. 31, 2018 BRL (R$)	Aug. 22, 2017 party	Dec. 31, 2013 company	Nov. 13, 2007 entity
Ebina [Member]
Loss Contingencies [Line Items]
Loss contingency accrual		$ 2	$ 19
Fox River
Loss Contingencies [Line Items]
Number of potentially responsible parties | entity			8				8
Number of previously owned carbonless copy paper manufacturing facilities | facility			2
Threshold amount for environmental cleanup costs			$ 75
Percentage of funding obligation under cost sharing agreement			50.00%
Percentage of obligation under cost sharing agreement			60.00%
Receivable under funding agreement		45	$ 49
Number of defendants | defendant			2
Number of parties | party			2
Gross loss contingency accrual		21	$ 13
Net loss contingency accrual		17	10
Total amount received from settlements with insurance carriers			$ 202
Kalamazoo River
Loss Contingencies [Line Items]
Loss contingency, value of damages sought	$ 105
Number of additional companies receiving general notice letters | number_of_companies			3
Number of additional defendants | defendant			2
Number of total corporation plaintiffs | affiliate_corporations			3
Number of companies tried to the court | company						4
Costs incurred in the pasted related to loss contingency	50
Loss contingency, value of damages sought	$ 55
NCR share of costs related to loss contingency	40.00%
GP share of costs related to loss contingency	40.00%
Number of companies assigned to share costs of loss contingency | company	2
Loss contingency accrual		47	$ 46
Fox River LLC | Fox River
Loss Contingencies [Line Items]
Funding remainder		0	$ 0
Glatfelter | Fox River
Loss Contingencies [Line Items]
Number of parties that appealed | party					1
Company One | Kalamazoo River
Loss Contingencies [Line Items]
NCR share of costs related to loss contingency	15.00%
Company Two | Kalamazoo River
Loss Contingencies [Line Items]
NCR share of costs related to loss contingency	5.00%
Fox River
Loss Contingencies [Line Items]
Percentage of portion of costs below threshold			45.00%
Percentage of portion of costs exceeding threshold			40.00%
Fox River | General Contractor Arbitration [Member]
Loss Contingencies [Line Items]
Loss contingency, range of possible loss			$ 10
Minimum | Fox River | General Contractor Arbitration [Member]
Loss Contingencies [Line Items]
Loss contingency, range of possible loss			$ 46
Percentage of Company's award responsibility to indemnitors and co-obligators			25.00%
Maximum | Fox River | General Contractor Arbitration [Member]
Loss Contingencies [Line Items]
Loss contingency, range of possible loss			$ 53
Foreign Tax Authority
Loss Contingencies [Line Items]
Loss contingency, value of damages sought		$ 43		R$ 168
BCG Matter [Member]
Loss Contingencies [Line Items]
Loss contingency, value of damages sought			$ 80