Consolidated Statements of Comprehensive Income (Loss) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Net earnings	$ 18.3us-gaap_ProfitLoss	$ 30.9us-gaap_ProfitLoss	$ 87.1us-gaap_ProfitLoss
Other comprehensive income (loss)
Foreign currency translation adjustments	(61.9)	(21.0)	6.5
Translation of long-term loans to foreign subsidiaries	16.5	0.8	(1.6)
Revaluation gain on sale of businesses	0	(2.4)	0
Translation adjustments, net	(45.4)	(22.6)	4.9
Pension and other postretirement benefit plans:
Net gain (loss) arising during period	(95.2)	133.6	(28.7)
Amortization of prior service credit included in net earnings	(5.8)	(5.7)	(3.4)
Amortization of net actuarial (gain) loss included in net earnings	(0.3)	0.3	(0.1)
Pension and other postretirement benefit plans, net	(106.2)	126.1	(44.9)
Other comprehensive income (loss), before tax	(151.6)	103.5	(40.0)
Income tax benefit (expense) related to items of other comprehensive income (loss)	40.6us-gaap_OtherComprehensiveIncomeLossTax	(48.7)us-gaap_OtherComprehensiveIncomeLossTax	17.3us-gaap_OtherComprehensiveIncomeLossTax
Other comprehensive income (loss), net of tax	(111.0)	54.8	(22.7)
Total comprehensive income (loss)	(92.7)	85.7	64.4
Less: comprehensive loss attributable to noncontrolling interests	0.3	1.6	0.4
Comprehensive income (loss) attributable to Quad/Graphics common shareholders	(92.4)us-gaap_ComprehensiveIncomeNetOfTax	87.3us-gaap_ComprehensiveIncomeNetOfTax	64.8us-gaap_ComprehensiveIncomeNetOfTax
Pension [Member]
Pension and other postretirement benefit plans:
Plan curtailments/settlements included in net earnings	0	(2.1)	(12.7)
Other Postretirement Benefit Plans, Defined Benefit [Member]
Pension and other postretirement benefit plans:
Plan curtailments/settlements included in net earnings	$ (4.9)	$ 0	$ 0

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