Retirement Plans - Additional Information (Details) - R.R. Donnelley & Sons Company - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Oct. 01, 2016
Defined Benefit Plan Disclosure [Line Items]
Pension cost and other postretirement benefits	$ 1.3	$ 1.0	$ 4.2	$ 3.0
Other Postretirement Benefit Plan
Defined Benefit Plan Disclosure [Line Items]
Pension cost and other postretirement benefits	$ 0.3	$ 0.5	$ 1.0	$ 1.5
Subsequent Event
Defined Benefit Plan Disclosure [Line Items]
Net pension plan liabilities					$ 68.3
Total benefit plan liability					317.0
Plan assets, fair market value					$ 248.7