Overview and Basis of Presentation - Narrative (Detail) $ / shares in Units, $ in Millions				12 Months Ended
	Oct. 30, 2018 $ / shares	Mar. 28, 2017 shares	Oct. 01, 2016 Entity shares	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Overview And Basis Of Presentation [Line Items]
Percentage of distribution of common shares during spinoff			80.75%
Reclassification of net pension income upon adoption of accounting standard | $				$ 9
ASU 2017-07
Overview And Basis Of Presentation [Line Items]
Reclassification of net pension income upon adoption of accounting standard | $					$ 46	$ 45
Merger Agreement | Maximum
Overview And Basis Of Presentation [Line Items]
Dividends payable per share | $ / shares	$ 0.26
Class A Common Stock | Merger Agreement
Overview And Basis Of Presentation [Line Items]
Business combination, common stock conversion ratio	0.625
Donnelley Financial Solutions
Overview And Basis Of Presentation [Line Items]
Percentage of distribution of common shares during spinoff			80.75%
RRD
Overview And Basis Of Presentation [Line Items]
Ownership percentage		19.25%	19.25%
Ownership percentage in Donnelley Financial solutions by related party			19.25%
Number of subsidiary shares sold by parent company		6,200,000
RR Donnelley
Overview And Basis Of Presentation [Line Items]
Number of entities resulted from spinoff of an entity | Entity			3
Number of share distributed to each stockholder in spinoff transaction in Donnelley Financial solutions by related party			0.125
Number of share distributed to each stockholder in spinoff transaction			0.125