Business Segment Information - Disaggregation of Revenue (Details) - Revenue from Contract with Customer	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	100.00%	100.00%	100.00%	100.00%
Fine Paper and Packaging
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	100.00%	100.00%	100.00%	100.00%
Fine Paper and Packaging | Product Concentration Risk | Graphic Imaging
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	69.00%	78.00%	74.00%	79.00%
Fine Paper and Packaging | Product Concentration Risk | Packaging
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	31.00%	22.00%	26.00%	21.00%
Technical Products
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	100.00%	100.00%	100.00%	100.00%
Technical Products | Product Concentration Risk | Performance Materials
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	57.00%	58.00%	58.00%	58.00%
Technical Products | Product Concentration Risk | Filtration
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	43.00%	42.00%	42.00%	42.00%
United States | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	70.00%	73.00%	70.00%	72.00%
Germany | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	24.00%	20.00%	23.00%	21.00%
Rest of Europe | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	6.00%	7.00%	7.00%	7.00%