Acquisitions (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended	12 Months Ended
	May 01, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Business Acquisition [Line Items]
ACCO shareholder ownership percentage	49.50%
Value of common shares issued		$ 0	$ 602.3	$ 0
Common stock, shares, outstanding	113,100,000	113,663,856	113,143,344
Acquisition related costs classified as Selling, General, and Administrative expenses			14.5	5.6
Mead C&OP
Business Acquisition [Line Items]
Purchase price, net of cash acquired	999.8
Number of shares issued to MWV shareholders	57,100,000
MWV ownership percentage of ACCO	50.50%
Value of common shares issued	602.3
Dividend paid to MWV	$ 460.0