Guarantor Financial Information - Condensed Consolidating Statements of Operations (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Condensed Income Statements Captions [Line Items]
Total net sales		$ 216.9	$ 222.6	$ 762.7	$ 780.1
Services cost of sales (exclusive of depreciation and amortization)		75.5	81.7	253.4	240.2
Products cost of sales (exclusive of depreciation and amortization)		57.8	58.9	204.1	190.7
Total cost of sales		133.3	140.6	457.5	482.7
Selling, general and administrative expenses (exclusive of depreciation and amortization)		62.6	54.8	203.8	173.7
Restructuring, impairment and other charges-net		0.8	(0.6)	4.1	6.4
Depreciation and amortization		11.6	10.6	33.1	31.7
Other operating (income) expense		(53.5)		(53.5)
Income from operations		62.1	17.2	117.7	85.6
Interest expense (income)-net		8.4	10.6	27.2	32.7
Intercompany interest (income) expense - net		0.0		0.0
Investment and other income-net		(14.0)	(0.8)	(15.6)	(2.5)
Earnings (loss) before income taxes and equity in net income of subsidiaries		67.7	7.4	106.1	55.4
Income tax expense (benefit)		19.7	2.1	31.5	22.0
Earnings (loss) before equity in net income of subsidiaries		48.0	5.3	74.6	33.4
Equity in net income of subsidiaries		0.0	0.0	0.0	0.0
Net earnings		48.0	5.3	74.6	33.4
Comprehensive income (loss)		48.8	7.8	73.7	39.0
R.R. Donnelley Affiliates
Condensed Income Statements Captions [Line Items]
Services cost of sales (exclusive of depreciation and amortization)	[1]	0.0	0.0	0.0	19.5	[2]
Products cost of sales (exclusive of depreciation and amortization)	[1]	0.0	0.0	0.0	32.3	[2]
Eliminations
Condensed Income Statements Captions [Line Items]
Total net sales		(2.9)	(3.4)	(9.1)	(10.5)
Services cost of sales (exclusive of depreciation and amortization)		(1.8)	(2.0)	(5.1)	(5.9)
Products cost of sales (exclusive of depreciation and amortization)		(1.1)	(1.4)	(4.0)	(4.6)
Total cost of sales		(2.9)	(3.4)	(9.1)	(10.5)
Selling, general and administrative expenses (exclusive of depreciation and amortization)		0.0	0.0	0.0	0.0
Restructuring, impairment and other charges-net		0.0	0.0	0.0	0.0
Depreciation and amortization		0.0	0.0	0.0	0.0
Other operating (income) expense		0.0		0.0
Income from operations		0.0	0.0	0.0	0.0
Interest expense (income)-net		0.0	0.0	0.0	0.0
Intercompany interest (income) expense - net		0.0		0.0
Investment and other income-net		0.0	0.0	0.0	0.0
Earnings (loss) before income taxes and equity in net income of subsidiaries		0.0	0.0	0.0	0.0
Income tax expense (benefit)		0.0	0.0	0.0	0.0
Earnings (loss) before equity in net income of subsidiaries		0.0	0.0	0.0	0.0
Equity in net income of subsidiaries		(70.6)	(13.0)	(104.4)	(57.8)
Net earnings		(70.6)	(13.0)	(104.4)	(57.8)
Comprehensive income (loss)		(72.0)	(17.7)	(101.3)	(68.0)
Eliminations | R.R. Donnelley Affiliates
Condensed Income Statements Captions [Line Items]
Services cost of sales (exclusive of depreciation and amortization)	[2]				0.0
Products cost of sales (exclusive of depreciation and amortization)	[2]				0.0
Services Net Sales
Condensed Income Statements Captions [Line Items]
Total net sales		138.5	140.3	485.9	471.4
Services Net Sales | Eliminations
Condensed Income Statements Captions [Line Items]
Total net sales		(2.0)	(2.1)	(5.9)	(6.5)
Products Net Sales
Condensed Income Statements Captions [Line Items]
Total net sales		78.4	82.3	276.8	308.7
Products Net Sales | Eliminations
Condensed Income Statements Captions [Line Items]
Total net sales		(0.9)	(1.3)	(3.2)	(4.0)
Parent
Condensed Income Statements Captions [Line Items]
Total net sales		0.0	0.0	0.0	0.0
Services cost of sales (exclusive of depreciation and amortization)		0.0	0.0	0.0	0.0
Products cost of sales (exclusive of depreciation and amortization)		0.0	0.0	0.0	0.0
Total cost of sales		0.0	0.0	0.0	0.0
Selling, general and administrative expenses (exclusive of depreciation and amortization)		0.0	0.0	0.0	0.0
Restructuring, impairment and other charges-net		0.0	0.0	0.0	0.0
Depreciation and amortization		0.0	0.0	0.0	0.0
Other operating (income) expense		0.0		0.0
Income from operations		0.0	0.0	0.0	0.0
Interest expense (income)-net		8.6	10.2	27.9	32.7
Intercompany interest (income) expense - net		(6.1)		(19.4)
Investment and other income-net		0.0	0.0	0.0	0.0
Earnings (loss) before income taxes and equity in net income of subsidiaries		(2.5)	(10.2)	(8.5)	(32.7)
Income tax expense (benefit)		(0.8)	(5.1)	(2.6)	(14.4)
Earnings (loss) before equity in net income of subsidiaries		(1.7)	(5.1)	(5.9)	(18.3)
Equity in net income of subsidiaries		49.7	10.4	80.5	51.7
Net earnings		48.0	5.3	74.6	33.4
Comprehensive income (loss)		48.8	7.8	73.7	39.0
Parent | R.R. Donnelley Affiliates
Condensed Income Statements Captions [Line Items]
Services cost of sales (exclusive of depreciation and amortization)	[2]				0.0
Products cost of sales (exclusive of depreciation and amortization)	[2]				0.0
Parent | Services Net Sales
Condensed Income Statements Captions [Line Items]
Total net sales		0.0	0.0	0.0	0.0
Parent | Products Net Sales
Condensed Income Statements Captions [Line Items]
Total net sales		0.0	0.0	0.0	0.0
Guarantor Subsidiaries
Condensed Income Statements Captions [Line Items]
Total net sales		187.9	188.9	648.7	665.8
Services cost of sales (exclusive of depreciation and amortization)		60.4	63.6	196.9	186.9
Products cost of sales (exclusive of depreciation and amortization)		54.3	56.0	187.2	174.6
Total cost of sales		114.7	119.6	384.1	410.0
Selling, general and administrative expenses (exclusive of depreciation and amortization)		53.2	45.0	172.9	145.1
Restructuring, impairment and other charges-net		0.7	(0.7)	2.2	5.1
Depreciation and amortization		10.4	9.2	29.1	27.5
Other operating (income) expense		(26.6)		(26.6)
Income from operations		35.5	15.8	87.0	78.1
Interest expense (income)-net		0.0	0.4	(0.3)	0.0
Intercompany interest (income) expense - net		6.1		19.4
Investment and other income-net		(12.6)	(0.8)	(14.2)	(2.5)
Earnings (loss) before income taxes and equity in net income of subsidiaries		42.0	16.2	82.1	80.6
Income tax expense (benefit)		13.2	8.4	25.5	35.0
Earnings (loss) before equity in net income of subsidiaries		28.8	7.8	56.6	45.6
Equity in net income of subsidiaries		20.9	2.6	23.9	6.1
Net earnings		49.7	10.4	80.5	51.7
Comprehensive income (loss)		50.5	12.9	79.6	57.3
Guarantor Subsidiaries | R.R. Donnelley Affiliates
Condensed Income Statements Captions [Line Items]
Services cost of sales (exclusive of depreciation and amortization)	[2]				18.4
Products cost of sales (exclusive of depreciation and amortization)	[2]				30.1
Guarantor Subsidiaries | Services Net Sales
Condensed Income Statements Captions [Line Items]
Total net sales		115.6	112.3	397.7	386.7
Guarantor Subsidiaries | Products Net Sales
Condensed Income Statements Captions [Line Items]
Total net sales		72.3	76.6	251.0	279.1
Non-guarantor Subsidiaries
Condensed Income Statements Captions [Line Items]
Total net sales		31.9	37.1	123.1	124.8
Services cost of sales (exclusive of depreciation and amortization)		16.9	20.1	61.6	59.2
Products cost of sales (exclusive of depreciation and amortization)		4.6	4.3	20.9	20.7
Total cost of sales		21.5	24.4	82.5	83.2
Selling, general and administrative expenses (exclusive of depreciation and amortization)		9.4	9.8	30.9	28.6
Restructuring, impairment and other charges-net		0.1	0.1	1.9	1.3
Depreciation and amortization		1.2	1.4	4.0	4.2
Other operating (income) expense		(26.9)		(26.9)
Income from operations		26.6	1.4	30.7	7.5
Interest expense (income)-net		(0.2)	0.0	(0.4)	0.0
Intercompany interest (income) expense - net		0.0		0.0
Investment and other income-net		(1.4)	0.0	(1.4)	0.0
Earnings (loss) before income taxes and equity in net income of subsidiaries		28.2	1.4	32.5	7.5
Income tax expense (benefit)		7.3	(1.2)	8.6	1.4
Earnings (loss) before equity in net income of subsidiaries		20.9	2.6	23.9	6.1
Equity in net income of subsidiaries		0.0	0.0	0.0	0.0
Net earnings		20.9	2.6	23.9	6.1
Comprehensive income (loss)		21.5	4.8	21.7	10.7
Non-guarantor Subsidiaries | R.R. Donnelley Affiliates
Condensed Income Statements Captions [Line Items]
Services cost of sales (exclusive of depreciation and amortization)	[2]				1.1
Products cost of sales (exclusive of depreciation and amortization)	[2]				2.2
Non-guarantor Subsidiaries | Services Net Sales
Condensed Income Statements Captions [Line Items]
Total net sales		24.9	30.1	94.1	91.2
Non-guarantor Subsidiaries | Products Net Sales
Condensed Income Statements Captions [Line Items]
Total net sales		$ 7.0	$ 7.0	$ 29.0	$ 33.6

[1] Beginning in the quarter ended June 30, 2017, LSC Communications (“LSC”) no longer qualified as a related party, therefore the amounts disclosed related to LSC are presented through March 31, 2017 only. Beginning in the quarter ended September 30, 2017, R.R. Donnelley & Sons Company (“RRD”) no longer qualified as a related party, therefore the amounts disclosed related to RRD are presented through June 30, 2017 only.

[2] Beginning in the quarter ended June 30, 2017, LSC no longer qualified as a related party, therefore the amounts disclosed related to LSC are presented through March 31, 2017 only. Beginning in the quarter ended September 30, 2017, RRD no longer qualified as a related party, therefore the amounts disclosed related to RRD are presented through June 30, 2017 only.