Goodwill And Identifiable Intangibles (Goodwill) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2013
Goodwill [Roll Forward]
Balance at December 31, 2012	$ 589.4
Mead C&OP Acquisition	1.9
Translation	(13.5)
Balance at June 30, 2013	577.8
Goodwill, Impaired, Accumulated Impairment Loss
Goodwill	792.9
Accumulated impairment losses	(215.1)
Balance at June 31, 2013	577.8
ACCO Brands North America
Goodwill [Roll Forward]
Balance at December 31, 2012	396.3
Mead C&OP Acquisition	1.4
Translation	(3.6)
Balance at June 30, 2013	394.1
Goodwill, Impaired, Accumulated Impairment Loss
Goodwill	525.0
Accumulated impairment losses	(130.9)
Balance at June 31, 2013	394.1
ACCO Brands International
Goodwill [Roll Forward]
Balance at December 31, 2012	186.3
Mead C&OP Acquisition	0.5
Translation	(9.9)
Balance at June 30, 2013	176.9
Goodwill, Impaired, Accumulated Impairment Loss
Goodwill	261.1
Accumulated impairment losses	(84.2)
Balance at June 31, 2013	176.9
Computer Products Group
Goodwill [Roll Forward]
Balance at December 31, 2012	6.8
Mead C&OP Acquisition	0
Translation	0
Balance at June 30, 2013	6.8
Goodwill, Impaired, Accumulated Impairment Loss
Goodwill	6.8
Accumulated impairment losses	0
Balance at June 31, 2013	$ 6.8