ACCO Brands (ACCO) 10-K 25 Feb 15 2014 FY Annual report Financial data

Document_And_Entity_Informatio

Document And Entity Information (USD $)	12 Months Ended
	Dec. 31, 2014	Feb. 09, 2015	Jun. 30, 2014
Document And Entity Information [Abstract]
Entity Registrant Name	ACCO BRANDS CORP
Entity Central Index Key	712034
Current Fiscal Year End Date	-19
Entity Filer Category	Large Accelerated Filer
Document Type	10-K
Document Period End Date	31-Dec-14
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Amendment Flag	FALSE
Entity Common Stock, Shares Outstanding		112,168,657
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$557,700,000

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Current assets:
Cash and cash equivalents	$53.20		$53.50
Accounts receivable less allowances for discounts, doubtful accounts and returns of $19.5 and $21.2, respectively	420.5		471.9
Inventories	229.9		254.7
Deferred income taxes	39.4		33.5
Other current assets	35.8		28.1
Total current assets	778.8		841.7
Total property, plant and equipment	547.7		548.5
Less accumulated depreciation	-312.2		-295.2
Property, plant and equipment, net	235.5	[1]	253.3	[1]
Deferred income taxes	31.7		37.3
Goodwill	544.9		568.3
Identifiable intangibles, net of accumulated amortization of $166.3 and $147.8, respectively	571.4		607
Other non-current assets	64.1		75.3
Total assets	2,226.40		2,382.90
Current liabilities:
Notes payable	0.8		0
Current portion of long-term debt	0.8		0.1
Accounts payable	159.1		177.9
Accrued compensation	36.6		32
Accrued customer program liabilities	111.8		123.6
Accrued interest	6.5		7
Other current liabilities	79.8		104.5
Total current liabilities	395.4		445.1
Long-term debt	799		920.8
Deferred income taxes	172.2		169.1
Pension and post-retirement benefit obligations	100.5		61.7
Other non-current liabilities	78.3		83.9
Total liabilities	1,545.40		1,680.60
Stockholders' equity:
Preferred stock, $0.01 par value, 25,000,000 shares authorized; none issued and outstanding	0		0
Common stock, $0.01 par value, 200,000,000 shares authorized; 112,670,514 and 114,056,416 shares issued and 111,911,290 and 113,663,856 outstanding, respectively	1.1		1.1
Treasury stock, 759,224 and 392,560 shares, respectively	-5.9		-3.5
Paid-in capital	2,031.50		2,035
Accumulated other comprehensive loss	-292.6		-185.6
Total stockholders' equity	681		702.3
Total liabilities and stockholders' equity	2,226.40		2,382.90
Accumulated deficit	($1,053.10)		($1,144.70)
[1]	Net property, plant and equipment as of December 31, 2014 and 2013 contained $37.0 million and $32.6 million of computer software assets, which are classified within machinery and equipment and construction in progress. Amortization of software costs was $7.4 million, $6.7 million and $8.4 million for the years ended December 31, 2014, 2013 and 2012, respectively.

Consolidated_Balance_Sheets_Co

Consolidated Balance Sheets Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Millions, except Share data, unless otherwise specified
Statement of Financial Position [Abstract]
Allowance for doubtful accounts receivable and returns	$19.50	$21.20
Amortizable intangible assets, accumulated amortization	$166.30	$147.80
Preferred stock, par value	$0.01	$0.01
Preferred stock, shares authorized	25,000,000	25,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$0.01	$0.01
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares, issued	112,670,514	114,056,416
Common stock, shares outstanding	111,911,290	113,663,856
Treasury stock, shares	759,224	392,560

Consolidated_Statements_Of_Inc

Consolidated Statements Of Income (USD $)	12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Net sales	$1,689.20		$1,765.10		$1,758.50
Cost of products sold	1,159.30		1,217.20		1,221.40
Gross profit	529.9		547.9		537.1
Operating costs and expenses:
Advertising, selling, general and administrative expenses	328.6		347.3		353.6
Amortization of intangibles	22.2		24.7		19.9
Restructuring charges	5.5		30.1		24.3
Total operating costs and expenses	356.3		402.1		397.8
Operating income	173.6	[1]	145.8	[1]	139.3	[1]
Non-operating expense (income):
Interest expense	49.5		59		91.3
Interest income	-5.6		-4.3		-2
Equity in earnings of joint ventures	-8.1		-8.2		-6.9
Other expense, net	0.8		7.6		61.3
Income (loss) from continuing operations before income tax	137		91.7		-4.4
Income tax expense (benefit)	45.4		14.4		-121.4
Income from continuing operations	91.6		77.3		117
Loss from discontinued operations, net of income taxes	0		-0.2		-1.6
Net income	$91.60		$77.10		$115.40
Basic income per share:
Income from continuing operations	$0.81		$0.68		$1.24
Loss from discontinued operations	$0		$0		($0.02)
Basic income per share	$0.81		$0.68		$1.23
Diluted income per share:
Income from continuing operations	$0.79		$0.67		$1.22
Loss from discontinued operations	$0		$0		($0.02)
Diluted income per share	$0.79		$0.67		$1.20
Weighted average number of shares outstanding:
Basic	113.7		113.5		94.1
Diluted	116.3		115.7		96.1
[1]	Operating income as presented in the segment table above is defined as i) net sales; ii) less cost of products sold; iii) less advertising, selling, general and administrative expenses; iv) less amortization of intangibles; and v) less restructuring charges.

Consolidated_Statements_Of_Com

Consolidated Statements Of Comprehensive Income (Loss) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net income	$91.60	$77.10	$115.40
Unrealized gain (loss) on derivative financial instruments:
Gain (loss) arising during the period	6.9	3.7	-0.2
Reclassification of gain included in net income	-3.5	-3.4	-1.9
Foreign currency translation:
Foreign currency translation adjustments	-76.4	-61.6	-10.9
Pension and other post-retirement plans:
Actuarial (loss) gain arising during the period	-60.2	39.3	-21.1
Amortization of actuarial loss included in net income	6	11.4	7.2
Amortization of prior service cost included in net income	0.3	0.1	0
Other	5.1	-2.1	-4.5
Other comprehensive loss, before tax	-121.8	-12.6	-31.4
Income tax benefit (expense) related to items of other comprehensive loss	14.8	-16.9	6.3
Comprehensive (loss) income	($15.40)	$47.60	$90.30

Consolidated_Statements_Of_Cas

Consolidated Statements Of Cash Flows (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating activities
Net income	$91.60	$77.10	$115.40
Amortization of inventory step-up	0	0	13.3
Loss (gain) on disposal of assets	0.8	-4.1	2
Deferred income tax provision	20.6	-0.7	-9.9
Release of tax valuation allowance	0	-11.6	-145.1
Depreciation	35.3	39.9	34.5
Amortization of debt issuance costs	4.6	6.2	9.9
Amortization of intangibles	22.2	24.7	19.9
Stock-based compensation	15.7	16.4	9.2
Loss on debt extinguishment	0	9.4	15.5
Other non-cash charges	0.7	1.2	2.3
Equity in earnings of joint ventures, net of dividends received	-2.4	-2.7	3
Changes in balance sheet items:
Accounts receivable	20.4	0.5	-153.8
Inventories	11.6	6.5	61.8
Other assets	-6.1	0.1	7.4
Accounts payable	-10.1	26.8	-25
Accrued expenses and other liabilities	-28.9	9	30.1
Accrued income taxes	-4.3	-4.2	2
Net cash provided (used) by operating activities	171.7	194.5	-7.5
Investing activities
Additions to property, plant and equipment	-29.6	-36.6	-30.3
(Payments) proceeds related to the sale of discontinued operations	0	-1.5	1.5
Proceeds from the disposition of assets	3.8	6.1	3.1
Cost of acquisitions, net of cash acquired	0	-1.3	-397.5
Net cash used by investing activities	-25.8	-33.3	-423.2
Financing activities
Proceeds from long-term borrowings	0	530	1,270
Repayments of long-term debt	-121.1	-679.5	-872
Borrowings (repayments) of notes payable, net	1	-0.7	1.2
Payments for debt issuance costs	-0.3	-4.3	-38.5
Repurchases of common stock	-19.4	0	0
Payments related to tax withholding for share-based compensation	-2.5	-1	-0.8
Proceeds from the exercise of stock options	0.3	0	0.2
Net cash (used) provided by financing activities	-142	-155.5	360.1
Effect of foreign exchange rate changes on cash and cash equivalents	-4.2	-2.2	-0.6
Net (decrease) increase in cash and cash equivalents	-0.3	3.5	-71.2
Cash and cash equivalents
Beginning of the period	53.5	50	121.2
End of the period	53.2	53.5	50
Supplemental Cash Flow Information [Abstract]
Interest	45.1	52	94.9
Income taxes	28.9	31.1	28.8
Significant non-cash transactions:
Common stock issued in conjunction with the acquisition of Mead C&OP	$0	$0	$602.30

Consolidated_Statements_of_Sto

Consolidated Statements of Stockholders’ Equity (Deficit) (USD $)	Total	Common Stock	Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Accumulated Deficit
In Millions, except Share data, unless otherwise specified
Balance at start of period at Dec. 31, 2011	($61.90)	$0.60	$1,407.40	($131)	($1.70)	($1,337.20)
Balance at start of period (in shares) at Dec. 31, 2011	55,475,735	55,659,753			184,018
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	115.4
Stock issuance - Mead C&OP acquisition	602.3	0.5	601.8
Income (loss) on derivative financial instrument, net of tax	-2.1			-2.1
Translation impact	-10.9			-10.9
Pension and post-retirement adjustment, net of tax	-12.1			-12.1
Stock-based compensation	9.2		9.2
Common stock issued, net of shares withheld for employee taxes	-0.6		0.2		-0.8
Other	-0.1		-0.1
Increase (Decrease) In Capital Stock [Roll Forward]
Common stock issued, net of shares withheld for employee taxes	577,801	654,263			76,462
Common stock issued, net of shares withheld for employee taxes	57,089,808	57,089,808
Balance at end of period at Dec. 31, 2012	639.2	1.1	2,018.50	-156.1	-2.5	-1,221.80
Balance at end of period (in shares) at Dec. 31, 2012	113,143,344	113,403,824			260,480
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	77.1					115.4
Income (loss) on derivative financial instrument, net of tax	0.2			0.2
Translation impact	-61.6			-61.6
Pension and post-retirement adjustment, net of tax	31.9			31.9
Stock-based compensation	16.4		16.4
Common stock issued, net of shares withheld for employee taxes	-1				-1
Other	0.1		0.1
Increase (Decrease) In Capital Stock [Roll Forward]
Common stock issued, net of shares withheld for employee taxes	520,512	652,592			132,080
Balance at end of period at Dec. 31, 2013	702.3	1.1	2,035	-185.6	-3.5	-1,144.70
Balance at end of period (in shares) at Dec. 31, 2013	113,663,856	114,056,416			392,560
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	91.6					77.1
Income (loss) on derivative financial instrument, net of tax	2.4			2.4
Translation impact	-76.4			-76.4
Pension and post-retirement adjustment, net of tax	-33			-33
Common stock repurchases	-19.4		-19.4
Stock-based compensation	15.7		15.7
Common stock issued, net of shares withheld for employee taxes	-2.2		0.3		-2.5
Other	0		-0.1		0.1
Increase (Decrease) In Capital Stock [Roll Forward]
Common stock issued, net of shares withheld for employee taxes	1,003,076	1,369,740			366,664
Common stock repurchases	-2,755,642	-2,755,642
Balance at end of period at Dec. 31, 2014	$681	$1.10	$2,031.50	($292.60)	($5.90)	($1,053.10)
Balance at end of period (in shares) at Dec. 31, 2014	111,911,290	112,670,514			759,224

Basis_Of_Presentation

Basis Of Presentation	12 Months Ended
	Dec. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis Of Presentation	Basis of Presentation
	The management of ACCO Brands Corporation is responsible for the accuracy and internal consistency of the preparation of the consolidated financial statements and notes contained in this annual report.
	The consolidated financial statements include the accounts of ACCO Brands Corporation and its domestic and international subsidiaries. Intercompany accounts and transactions have been eliminated in consolidation. Our investments in companies that are between 20% and 50% owned are accounted for using the equity method of accounting. ACCO Brands has an equity investment in the following joint venture: Pelikan-Artline Pty Ltd ("Pelikan-Artline") - 50% ownership. Our share of earnings from equity investments is included on the line entitled "Equity in earnings of joint ventures" in the Consolidated Statements of Income.
	On May 1, 2012, we completed the merger ("Merger") of the Mead Consumer and Office Products Business ("Mead C&OP") with a wholly-owned subsidiary of the Company. Accordingly, the results of Mead C&OP are included in our consolidated financial statements from the date of the Merger. For further information on the Merger see "Note 3. Acquisitions."
	We reclassified certain costs from cost of products sold to SG&A to align classifications of certain expenses across our businesses. All prior periods have been adjusted to make the results comparable. For the years ended December 31, 2013, and 2012 reclassified costs totaled $3.1 million, and $3.7 million, respectively. These historical reclassifications were not material and have had no effect on net income.

Significant_Accounting_Policie

Significant Accounting Policies	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
Significant Accounting Policies	Significant Accounting Policies
	Nature of Business
	ACCO Brands is primarily involved in the manufacturing, marketing and distribution of office products such as stapling, binding and laminating equipment and related consumable supplies, shredders and whiteboards; school products such as notebooks, folders, decorative calendars, and stationery products; calendar products; and accessories for laptop and desktop computers and tablets. We sell primarily to large resellers, and our subsidiaries operate principally in the United States, Northern Europe, Brazil, Canada, Australia and Mexico.
	Use of Estimates
	The preparation of financial statements in conformity with accounting principles generally accepted in the U.S ("GAAP") requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates.
	Cash and Cash Equivalents
	Highly liquid investments with an original maturity of three months or less are included in cash and cash equivalents.
	Allowances for Doubtful Accounts, Discounts and Returns
	Trade receivables are recorded at the stated amount, less allowances for discounts, doubtful accounts and returns. The allowance for doubtful accounts represents estimated uncollectible receivables associated with potential customer defaults on contractual obligations, usually due to customers’ potential insolvency. The allowance includes amounts for certain customers where a risk of default has been specifically identified. In addition, the allowance includes a provision for customer defaults on a general formula basis when it is determined the risk of some default is probable and estimable, but cannot yet be associated with specific customers. The assessment of the likelihood of customer defaults is based on various factors, including the length of time the receivables are past due, historical experience and existing economic conditions.
	The allowance for sales returns represents estimated uncollectible receivables associated with the potential return of products previously sold to customers, and is recorded at the time that the sales are recognized. The allowance includes a general provision for product returns based on historical trends. In addition, the allowance includes a reserve for currently authorized customer returns that are considered to be abnormal in comparison to the historical basis.
	Inventories
	Inventories are priced at the lower of cost (principally first-in, first-out with minor amounts at average) or market. A reserve is established to adjust the cost of inventory to its net realizable value. Inventory reserves are recorded for obsolete or slow-moving inventory based on assumptions about future demand and marketability of products, the impact of new product introductions and specific identification of items, such as product discontinuance or engineering/material changes. These estimates could vary significantly, either favorably or unfavorably, from actual requirements if future economic conditions, customer inventory levels or competitive conditions differ from expectations.
	Property, Plant and Equipment
	Property, plant and equipment are carried at cost. Depreciation is provided, principally on a straight-line basis, over the estimated useful lives of the assets. Gains or losses resulting from dispositions are included in operating income. Betterments and renewals, which improve and extend the life of an asset are capitalized; maintenance and repair costs are expensed. Purchased computer software is capitalized and amortized over the software’s useful life. The following table shows estimated useful lives of property, plant and equipment:
	Buildings	40 to 50 years
	Leasehold improvements	Lesser of lease term or the life of the asset
	Machinery, equipment and furniture	3 to 10 years
	Computer software	5 to 7 years
	Long-Lived Assets
	We test long-lived assets for impairment whenever events or changes in circumstances indicate that the assets’ carrying amount may not be recoverable from its undiscounted cash flow. When such events occur, we compare the sum of the undiscounted cash flow expected to result from the use and eventual disposition of the asset or asset group to the carrying amount of a long-lived asset or asset group. The cash flows are based on our best estimate at the time of future cash flow, derived from the most recent business projections. If this comparison indicates that there is an impairment, the amount of the impairment is typically calculated using discounted expected future cash flow. The discount rate applied to these cash flows is based on our weighted average cost of capital, computed by selecting market rates at the valuation dates for debt and equity that are reflective of the risks associated with an investment in our industry as estimated by using comparable publicly traded companies.
	Intangible Assets
	Intangible assets are comprised primarily of indefinite-lived and amortizable intangible assets acquired and arising from the application of purchase accounting. Indefinite-lived intangible assets are not amortized, but are evaluated annually to determine whether the indefinite useful life is appropriate. In addition, amortizable intangible assets other than goodwill are amortized over their useful lives. Certain of our trade names have been assigned an indefinite life as we currently anticipate that these trade names will contribute cash flows to ACCO Brands indefinitely.
	We review indefinite-lived intangibles for impairment annually, normally in the second quarter, and whenever market or business events indicate there may be a potential adverse impact on a particular intangible. We consider the implications of both external factors (e.g., market growth, pricing, competition, and technology) and internal factors (e.g., product costs, margins, support expenses, and capital investment) and their potential impact on cash flows for each business in both the near and long term, as well as their impact on any identifiable intangible asset associated with the business. Based on recent business results, consideration of significant external and internal factors, and the resulting business projections, indefinite-lived intangible assets are reviewed to determine whether they are likely to remain indefinite-lived, or whether a finite life is more appropriate. In addition, based on events in the period and future expectations, management considers whether the potential for impairment exists. Finite lived intangibles are amortized over 10, 15, 23 or 30 years.
	During 2013, we adopted ASU No. 2012-02, Intangibles-Goodwill and Other (Topic 350): Testing Indefinite-Lived Intangible Assets for Impairment. ASU No. 2012-02 permits entities to first assess qualitative factors to determine if it is more likely than not that the fair value of a indefinite-lived intangible unit is less than its carrying amount as a basis for determining whether further impairment testing of indefinite-lived intangible assets is necessary.
	We performed our annual assessment in the second quarter of 2014 and concluded that no impairment exists. However, due to the recent acquisition of Mead C&OP, the fair values of certain indefinite-lived trade names are not substantially above their carrying values.
	Goodwill
	Goodwill has been recorded on our balance sheet and represents the excess of the cost of the acquisitions when compared to the fair value of the net assets acquired. The authoritative guidance on goodwill and other intangible assets requires that goodwill be tested for impairment at a reporting unit level. We have determined that our reporting units are ACCO Brands North America, ACCO Brands International and Computer Products Group segments. We test goodwill for impairment annually and whenever events or circumstances make it more likely than not that an impairment may have occurred. During 2012, we adopted ASU No. 2011-08, Intangibles - Goodwill and Other (Topic 350): Testing Goodwill for Impairment. ASU No. 2011-08 permits entities to first assess qualitative factors to determine if it is more likely than not that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test included in GAAP. Entities are not required to calculate the fair value of a reporting unit unless they determine that it is more likely than not that the fair value is less than the carrying amount. We performed our annual assessment in the second quarter of 2014 and concluded that no impairment exists. We performed our assessment using the two-step fair value quantitative impairment test in ASC 350 to our reporting units in 2014 due to the Merger and the decline in sales. When applying a fair-value-based test, if it is determined to be required, the fair value of a reporting unit is compared to its carrying value. If the fair value of a reporting unit exceeds the carrying value of the net assets assigned to a reporting unit, goodwill is considered not impaired and no further testing is required. If the carrying value of the net assets assigned to a reporting unit exceeds the fair value of a reporting unit, the second step of the impairment test is performed in order to determine the implied fair value of a reporting unit’s goodwill. Determining the implied fair value of goodwill requires valuation of a reporting unit’s tangible and intangible assets and liabilities in a manner similar to the allocation of purchase price in a business combination. If the carrying value of a reporting unit’s goodwill exceeds its implied fair value, goodwill is deemed impaired and is written down to the extent of the difference.
	Employee Benefit Plans
	We provide a range of benefits to our employees and retired employees, including pension, post-retirement, post-employment and health care benefits. We record annual amounts relating to these plans based on calculations, which include various actuarial assumptions, including discount rates, assumed rates of return on plan assets, compensation increases, turnover rates and health care cost trend rates. We review our actuarial assumptions on an annual basis and make modifications to the assumptions based on current rates and trends when it is deemed appropriate to do so. The effect of the modifications are generally recorded and amortized over future periods.
	Income Taxes
	Deferred tax liabilities or assets are established for temporary differences between financial and tax reporting bases and are subsequently adjusted to reflect changes in tax rates expected to be in effect when the temporary differences reverse. A valuation allowance is recorded to reduce deferred tax assets to an amount that is more likely than not to be realized. Facts and circumstances may change and cause us to revise the conclusions on our ability to realize certain net operating losses and other deferred tax attributes.
	The amount of income taxes that we pay is subject to ongoing audits by federal, state and foreign tax authorities. Our estimate of the potential outcome of any uncertain tax position is subject to management’s assessment of relevant risks, facts and circumstances existing at that time. We believe that we have adequately provided for reasonably foreseeable outcomes related to these matters. However, our future results may include favorable or unfavorable adjustments to our estimated tax liabilities in the period the assessments are revised or resolved.
	Revenue Recognition
	We recognize revenue from product sales when earned, net of applicable provisions for discounts, returns and allowances. We consider revenue to be realized or realizable and earned when all of the following criteria are met: title and risk of loss have passed to the customer, persuasive evidence of an arrangement exists, delivery has occurred, the price is fixed or determinable and collectability is reasonably assured. We also provide for our estimate of potential uncollectible receivables at the time of revenue recognition.
	Cost of Products Sold
	Cost of products sold includes all manufacturing, product sourcing and distribution costs, including depreciation related to assets used in the manufacturing, procurement and distribution process, allocation of certain information technology costs supporting those processes, inbound and outbound freight, shipping and handling costs, purchasing costs associated with materials and packaging used in the production processes.
	Advertising, Selling, General and Administrative Expenses
	Advertising, selling, general and administrative expenses ("SG&A") include advertising, marketing, selling (including commissions), research and development, customer service, depreciation related to assets outside the manufacturing and distribution processes and all other general and administrative expenses outside the manufacturing and distribution functions (e.g., finance, human resources, information technology, corporate expenses, etc.).
	Advertising Costs
	Advertising costs amounted to $130.8 million, $131.0 million and $125.7 million for the years ended December 31, 2014, 2013 and 2012, respectively and are principally expensed as incurred.
	Customer Program Costs
	Customer program costs include, but are not limited to, sales rebates which are generally tied to achievement of certain sales volume levels, in-store promotional allowances, shared media and customer catalog allowances and other cooperative advertising arrangements, and freight allowance programs. We generally recognize customer program costs as a deduction to gross sales at the time that the associated revenue is recognized. Certain customer incentives that do not directly relate to future revenues are expensed when initiated.
	In addition, accrued customer program liabilities principally include, but are not limited to, sales volume rebates, promotional allowances, shared media and customer catalog allowances and other cooperative advertising arrangements, and freight allowances as discussed above.
	Shipping and Handling
	We reflect all amounts billed to customers for shipping and handling in net sales and the costs incurred from shipping and handling product (including costs to ship and move product from the seller’s place of business to the buyer’s place of business, as well as costs to store, move and prepare products for shipment) in cost of products sold.
	Warranty Reserves
	We offer our customers various warranty terms based on the type of product that is sold. Estimated future obligations related to products sold under these warranty terms are provided by charges to cost of products sold in the period in which the related revenue is recognized.
	Research and Development
	Research and development expenses, which amounted to $20.2 million, $22.5 million and $20.8 million for the years ended December 31, 2014, 2013 and 2012, respectively, are classified as general and administrative expenses and are charged to expense as incurred.
	Stock-Based Compensation
	Our primary types of share-based compensation consist of stock options, restricted stock unit awards, and performance stock unit awards. Stock-based compensation cost is measured at the grant date, based on the fair value of the award, and is recognized as expense over the requisite service period. Where awards are made with non-substantive vesting periods (for example, where a portion of the award vests upon retirement eligibility), we estimate and recognize expense based on the period from the grant date to the date on which the employee is retirement eligible.
	Foreign Currency Translation
	Foreign currency balance sheet accounts are translated into U.S. dollars at the rates of exchange at the balance sheet date. Income and expenses are translated at the average rates of exchange in effect during the period. The related translation adjustments are made directly to a separate component of accumulated other comprehensive income (loss) in stockholders’ equity. Some transactions are made in currencies different from an entity’s functional currency. Gains and losses on these foreign currency transactions are included in income as they occur.
	Derivative Financial Instruments
	We recognize all derivatives as either assets or liabilities on the balance sheet and measures those instruments at fair value. If the derivative is designated as a fair value hedge and is effective, the changes in the fair value of the derivative and of the hedged item attributable to the hedged risk are recognized in earnings in the same period. If the derivative is designated as a cash flow hedge, the effective portions of changes in the fair value of the derivative are recorded in other comprehensive income (loss) and are recognized in the income statement when the hedged item affects earnings. Ineffective portions of changes in the fair value of cash flow hedges are recognized in earnings.
	Certain forecasted transactions, assets and liabilities are exposed to foreign currency risk. We continually monitor our foreign currency exposures in order to maximize the overall effectiveness of our foreign currency hedge positions. Principal currencies hedged include the U.S. dollar, Euro, Australian dollar, Canadian dollar and British pound.
	Recent Accounting Pronouncements
	There were no new accounting pronouncements that the Company adopted in 2014 that had a material impact on the Company’s consolidated financial statements.
	In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers ("ASU 2014-09"). The standard provides companies with a single model for use in accounting for revenue arising from contracts with customers and supersedes current revenue recognition guidance, including industry-specific revenue guidance. The core principle of the model is to recognize revenue when control of the goods or services transfers to the customer, as opposed to recognizing revenue when the risks and rewards transfer to the customer under the existing revenue guidance. ASU 2014-09 is effective for annual reporting periods beginning after December 15, 2016. Early adoption is not permitted. The guidance permits companies to either apply the requirements retrospectively to all prior periods presented, or apply the requirements in the year of adoption, through a cumulative adjustment. The Company is in the process of evaluating the impact of adoption of ASU 2014-09 on its consolidated financial statements.

Acquisitions

Acquisitions	12 Months Ended
	Dec. 31, 2014
Business Combinations [Abstract]
Acquisitions	Acquisitions
	On May 1, 2012, the Company completed the Merger of Mead C&OP with a wholly-owned subsidiary of the Company. Mead C&OP is a leading manufacturer and marketer of school supplies, office products, and planning and organizing tools including the Mead®, Five Star®, Trapper Keeper®, AT-A-GLANCE®, Cambridge®, Day Runner®, Hilroy, Tilibra and Grafons brands in the U.S., Canada and Brazil.
	In the Merger, MeadWestvaco Corporation ("MWV") shareholders received 57.1 million shares of the Company's common stock, or 50.5% of the combined company, valued at $602.3 million on the date of the Merger. After the transaction was completed the Company had 113.1 million common shares outstanding.
	ACCO’s management determined that ACCO is the accounting acquiror in this combination. Accordingly, the results of Mead C&OP are included in the Company's consolidated financial statements from the date of the Merger.
	The purchase price, net of working capital adjustments and cash acquired, was $999.8 million. The consideration given included 57.1 million shares of ACCO Brands common stock, which were issued to MWV shareholders with a fair value of $602.3 million and a $460.0 million dividend paid to MWV. The calculation of consideration given for Mead C&OP was finalized during the fourth quarter of 2012 and is described in the following table:
	(in millions, except per share price)	At May 1, 2012
	Calculated consideration for Mead C&OP:
	Outstanding shares of ACCO Brands common stock(1)	56
	Multiplier needed to calculate shares to be issued(2)	1.02020202
	Number of shares issued to MWV shareholders	57.1
	Closing price per share of ACCO Brands common stock(3)	$	10.55
	Value of common shares issued	$	602.3
	Plus:
	Dividend paid to MWV	460
	Less:
	Working capital adjustment(4)	(30.5		)
	Consideration given for Mead C&OP	$	1,031.80
	-1	Represents the number of shares of the Company's common stock as of May 1, 2012.
	-2	Represents MWV shareholders' negotiated ownership percentage in ACCO Brands of 50.5% divided by the 49.5% that was owned by ACCO Brands shareholders upon completion of the Merger.
	-3	Represents the closing price per share of the Company's stock as of April 30, 2012.
	-4	Represents the difference between the target net working capital and the closing net working capital as of April 30, 2012.
	The following table presents the allocation of the purchase price to the fair values of the assets acquired and liabilities assumed at the date of acquisition:
	(in millions of dollars)	At May 1, 2012
	Calculation of Goodwill:
	Consideration given for Mead C&OP	$	1,031.80
	Cash acquired	(32.0		)
	Net purchase price	$	999.8
	Plus fair value of liabilities assumed:
	Accounts payable and accrued liabilities	103.9
	Current and non-current deferred tax liabilities	209.6
	Other non-current liabilities	72.9
	Fair value of liabilities assumed	$	386.4
	Less fair value of assets acquired:
	Accounts receivable	73.3
	Inventory	143.5
	Property, plant and equipment	136.6
	Identifiable intangibles	543.2
	Other assets	24.3
	Fair value of assets acquired	$	920.9
	Goodwill	$	465.3
	In connection with our acquisition of Mead C&OP we assumed all of the tax liabilities for the acquired foreign operations including Tilibra Produtos de Papelaria Ltda. ("Tilibra"). See "Note 11. Income Taxes - Income Tax Assessment" for details on tax assessments issued by the Federal Revenue Department of the Ministry of Finance of Brazil ("FRD") against Tilibra, which challenged the tax deduction of goodwill from Tilibra's taxable income for the years 2007 through 2010.
	Acquisition-related costs of $14.5 million that were incurred during the year ended December 30, 2012 were classified as SG&A expenses.

Longterm_Debt_and_Shortterm_Bo

Long-term Debt and Short-term Borrowings	12 Months Ended
	Dec. 31, 2014
Debt Disclosure [Abstract]
Long-Term Debt and Short-Term Borrowings	Long-term Debt and Short-term Borrowings
	Notes payable and long-term debt, listed in order of their security interests, consisted of the following as of December 31, 2014 and 2013:
	(in millions of dollars)	2014				2013
	U.S. Dollar Senior Secured Term Loan A, due May 2018 (floating interest rate of 2.24% at December 31, 2014 and 2.49% at December 31, 2013)	$	299			$	420
	Senior Unsecured Notes, due April 2020 (fixed interest rate of 6.75%)	500				500
	Other borrowings	1.7				0.9
	Total debt	800.7				920.9
	Less: current portion	(1.7		)		(0.1		)
	Total long-term debt	$	799			$	920.8
	On June 26, 2014, the Company entered into a Second Amendment to the Amended and Restated Credit Agreement (the "2014 Amendment"). The 2014 Amendment relates to and amends the Company’s Amended and Restated Credit Agreement, dated as of May 13, 2013 (the "2013 Restated Credit Agreement") among the Company, certain of its subsidiaries, the lenders party thereto, the administrative agent and other parties named therein.
	The 2014 Amendment increases the Company’s flexibility to pay dividends and repurchase its shares based upon the Company’s Consolidated Leverage Ratio (the "Leverage Ratio," as defined in the 2013 Restated Credit Agreement) and subject to certain other conditions specified in the 2014 Amendment.
	Effective May 13, 2013 (the "Effective Date"), the Company entered into the 2013 Restated Credit Agreement that amended and restated the Company's prior credit agreement, dated as of March 26, 2012, as amended (the “2012 Credit Agreement”), that had been entered into in connection with the Merger.
	The 2013 Restated Credit Agreement provides for a $780 million, five-year senior secured credit facility, which consists of a $250.0 million multi-currency revolving credit facility, due May 2018 (the "Revolving Facility") and a $530.0 million U.S. dollar denominated Senior Secured Term Loan A, due May 2018 (the "Restated Term Loan A"). Specifically, in connection with the 2013 Restated Credit Agreement, the Company:
	•	replaced its then-existing U.S.-dollar denominated Senior Secured Term Loan A, due May 2017 ("the Term Loan A"), under the 2012 Credit Agreement, which had an aggregate principal amount of $220.8 million outstanding immediately prior to the Effective Date, with the Restated Term Loan A, due May 2018, in an aggregate original principal amount of $530.0 million;
	•	prepaid in full its then-existing U.S.-dollar denominated Senior Secured Term Loan B (the "Term Loan B"), due May 2019, under the 2012 Credit Agreement, which had an aggregate principal amount of $310.2 million outstanding immediately prior to the Effective Date, using a portion of the proceeds from the Restated Term A Loan; and
	•	replaced the $250.0 million revolving credit facility under the 2012 Credit Agreement with the Revolving Facility.
	Prior to the Effective Date, the Company repaid in full the $21.4 million Canadian-dollar denominated Senior Secured Term Loan A, due May 2017, that had been drawn under the 2012 Credit Agreement.
	During the year ended December 31, 2013, we included in "Other expense, net" a $9.4 million charge for the write-off of debt origination costs associated with the refinancing. Additionally, we incurred approximately $4.5 million in bank, legal and other fees associated with the 2013 Restated Credit Agreement. Of these fees, $4.2 million were capitalized and are being amortized over the life of the Restated Term Loan A and the Revolving Facility.
	As of December 31, 2014, there were no borrowings under the Revolving Facility. The amount available for borrowings was $238.3 million (allowing for $11.7 million of letters of credit outstanding on that date).
	The Revolving Facility is expected to be available for working capital and general corporate purposes. Undrawn amounts under the Revolving Facility are subject to a commitment fee rate of 0.25% to 0.50% per annum, depending on the Company's Leverage Ratio. As of December 31, 2014, the commitment fee rate was 0.375%.
	Maturity and amortization
	Borrowings under the Revolving Facility and the Restated Term Loan A will mature on May 13, 2018. Amounts under the Revolving Facility are non-amortizing. Beginning September 30, 2013, the outstanding principal amount under the Restated Term Loan A was payable in quarterly installments in an amount representing, on an annual basis, 5.0% of the initial aggregate principal amount of such loan and increasing to 12.5% of the initial aggregate principal amount of such loan by June 30, 2016. Due to prepayments made during 2014, the next scheduled installment is due March 31, 2016.
	Interest rates
	Amounts outstanding under the 2013 Restated Credit Agreement will bear interest (i) in the case of Eurodollar loans, at a rate per annum equal to the Eurodollar rate (which is based on an average British Bankers Association Interest Settlement Rate) plus the applicable rate; (ii) in the case of loans made at the Base Rate (which means the highest of (a) the Bank of America, N.A. prime rate then in effect, (b) the Federal Funds Effective Rate (as defined in the 2013 Restated Credit Agreement) then in effect plus ½ of 1.00% and (c) the Eurodollar rate that would be payable on such day for a Eurodollar loan with a one-month interest period plus 1.00%), at a rate per annum equal to the Base Rate plus the applicable rate; and (iii) in the case of swing line loans, at a rate per annum equal to the Base Rate plus the applicable rate for the Revolving Facility. Separate base interest rate and applicable rate provisions will apply for any Canadian or Australian currency denominated loans outstanding under the Revolving Facility.
	The credit spread applied to outstanding Eurodollar loans and Base Rate loans is based on our Leverage Ratio as calculated in the most recently submitted compliance certificate. The credit spreads are as follows:
	Consolidated		Eurodollar Credit Spread		Base Rate Credit Spread
	Leverage Ratio
	> 4.00 to 1.00		2.50%		1.50%
	≤ 4.00 to 1.00 and > 3.50 to 1.00		2.25%		1.25%
	≤ 3.50 to 1.00 and > 2.50 to 1.00		2.00%		1.00%
	≤ 2.50 to 1.00		1.75%		0.75%
	As of December 31, 2014, the Eurodollar credit spread for the Restated Term Loan A and amounts drawn under the Revolving Credit Facility was 2.00% and the Base Rate credit spread was 1.00%.
	Prepayments
	Subject to certain conditions and exceptions, the 2013 Restated Credit Agreement requires the Company to prepay outstanding loans in certain circumstances, including (a) in an amount equal to 100% of the net cash proceeds from sales or dispositions of property or assets in excess of $10.0 million per fiscal year, (b) in an amount equal to 100% of the net cash proceeds from property insurance or condemnation awards in excess of $10.0 million per fiscal year and (c) in an amount equal to 100% of the net cash proceeds from additional debt other than debt permitted under the 2013 Restated Credit Agreement. The Company also is required to prepay outstanding loans with specified percentages of excess cash flow based on its leverage. The 2013 Restated Credit Agreement contains other customary prepayment obligations and provides for voluntary commitment reductions and prepayment of loans, subject to certain conditions and exceptions.
	Loan Covenants
	We must meet certain restrictive financial covenants as defined under the 2013 Restated Credit Agreement. The covenants become more restrictive over time and require us to maintain certain ratios related to the Leverage Ratio. We are also subject to certain customary restrictive covenants under the Senior Unsecured Notes, due April 2020 (the "Senior Notes").
	The 2013 Restated Credit Agreement contains customary affirmative and negative covenants as well as events of default, including payment defaults, breach of representations and warranties, covenant defaults, cross-defaults, certain bankruptcy or insolvency events, certain ERISA-related events, changes in control or ownership and invalidity of any loan document.
	Under the 2013 Restated Credit Agreement, the Company is required to meet certain financial tests, including a maximum Leverage Ratio as determined by reference to the following ratios:
	Period		Maximum Consolidated Leverage Ratio(1)
	July 1, 2014 through June 30, 2015		4.00:1.00
	July 1, 2015 through June 30, 2017		3.75:1.00
	July 1, 2017 and thereafter		3.50:1.00
	-1	The Leverage Ratio is computed by dividing the Company's net funded indebtedness by the cumulative four-quarter-trailing EBITDA, which excludes transaction costs, restructuring and other charges up to certain limits as well as other adjustments defined in the 2013 Restated Credit Agreement.
	The 2013 Restated Credit Agreement also requires the Company to maintain a consolidated fixed charge coverage ratio (as defined in the 2013 Restated Credit Agreement) as of the end of any fiscal quarter at or above 1.25 to 1.00.
	The indenture governing the Senior Notes does not contain financial performance covenants. However, that indenture does contain covenants that limit, among other things, our ability and the ability of our restricted subsidiaries to:
	•	incur additional indebtedness;
	•	pay dividends on our capital stock or repurchase our capital stock;
	•	enter into or permit to exist contractual limits on the ability of our subsidiaries to pay dividends to the Company;
	•	enter into certain transactions with affiliates;
	•	make investments;
	•	create liens; and
	•	sell certain assets or merge with or into other companies.
	Certain of these covenants will be subject to suspension when and if the notes are rated at least "BBB–" by Standard & Poor’s or at least "Baa3' by Moody’s. Each of the covenants is subject to a number of important exceptions and qualifications.
	Guarantees and Security
	Generally, obligations under the 2013 Restated Credit Agreement are irrevocably and unconditionally guaranteed, jointly and severally, by certain of the Company's existing and future domestic subsidiaries, and are secured by substantially all of the Company's and certain guarantor subsidiaries' assets, subject to certain exclusions and limitations.
	The Senior Notes, are irrevocably and unconditionally guaranteed, jointly and severally, on a senior unsecured basis by each of our existing and future domestic subsidiaries other than certain excluded subsidiaries. The Senior Notes and the related guarantees will rank equally in right of payment with all of the existing and future senior debt of the Company and the guarantors, senior in right of payment to all of the existing and future subordinated debt of the Company, and the guarantors, and effectively subordinated to all of the existing and future secured indebtedness of the Company and the guarantors to the extent of the value of the assets securing such indebtedness. The Senior Notes and the guarantees are and will be structurally subordinated to all existing and future liabilities, including trade payables, of each of the Company's subsidiaries that do not guarantee the notes.
	Compliance with Loan Covenants
	As of and for the year ended December 31, 2014, we were in compliance with all applicable loan covenants.

Pension_and_Other_Retiree_Bene

Pension and Other Retiree Benefits	12 Months Ended
	Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]
Pension and Other Retiree Benefits	Pension and Other Retiree Benefits
	We have a number of pension plans, principally in the U.K. and the U.S. The plans provide for payment of retirement benefits, primarily commencing between the ages of 60 and 65, and also for payment of certain disability and severance benefits. After meeting certain qualifications, an employee acquires a vested right to future benefits. The benefits payable under the plans are generally determined on the basis of an employee’s length of service and earnings. Several of these plans have been frozen and are no longer accruing additional service benefits. Cash contributions to the plans are made as necessary to ensure legal funding requirements are satisfied.
	On January 20, 2009, the Company’s Board of Directors approved plan amendments to temporarily freeze our ACCO Brands Corporation Pension Plan for Salaried and Certain Hourly Paid Employees in the U.S.(the "U.S. Salaried Plan") effective March 7, 2009. During the fourth quarter of 2014, the U.S. Salaried Plan became permanently frozen. On September 30, 2012, our U.K. pension plan was frozen.
	The Merger added six additional pension and post-retirement plans in the U.S. and Canada. In the U.S. we added a pension plan for certain bargained hourly employees of Mead C&OP. As of December 31, 2014, we have permanently frozen a portion of this plan. In Canada we added five pension and post-retirement plans, as of December 31, 2013. We permanently froze the Salaried and Supplemental Executive Retirement Plans in Canada.
	We also provide post-retirement health care and life insurance benefits to certain employee groups outside of the U.S and certain employees and retirees in the U.S., U.K. and Canada. All but one of these benefit plans have been frozen to new participants. Many employees and retirees outside of the U.S. are covered by government health care programs.
	The following table sets forth our defined benefit pension and post-retirement plans funded status and the amounts recognized in our Consolidated Balance Sheets:
		Pension Benefits																Post-retirement
		U.S.								International
	(in millions of dollars)	2014				2013				2014				2013				2014				2013
	Change in projected benefit obligation (PBO)
	Projected benefit obligation at beginning of year	$	177.4			$	191.7			$	371.4			$	361			$	13.3			$	16
	Service cost	2.1				2				0.8				1.6				0.2				0.2
	Interest cost	8.6				7.9				15.7				14.7				0.5				0.6
	Actuarial loss (gain)	34.2				(19.0		)		48.3				1.9				(0.3		)		(2.8		)
	Participants’ contributions	—				—				0.2				0.3				0.1				0.1
	Benefits paid	(9.4		)		(8.9		)		(16.6		)		(13.9		)		(0.8		)		(0.7		)
	Curtailment gain	—				—				—				(1.0		)		—				—
	Plan amendments	—				3.7				(0.2		)		—				(0.4		)		—
	Foreign exchange rate changes	—				—				(27.8		)		6.8				(0.4		)		(0.1		)
	Projected benefit obligation at end of year	212.9				177.4				391.8				371.4				12.2				13.3
	Change in plan assets
	Fair value of plan assets at beginning of year	156.3				135.4				342.8				311.9				—				—
	Actual return on plan assets	10.8				21.7				43.8				32.2				—				—
	Employer contributions	6.2				8.1				5.5				6				0.7				0.6
	Participants’ contributions	—				—				0.2				0.3				0.1				0.1
	Benefits paid	(9.4		)		(8.9		)		(16.6		)		(13.9		)		(0.8		)		(0.7		)
	Foreign exchange rate changes	—				—				(24.5		)		6.3				—				—
	Fair value of plan assets at end of year	163.9				156.3				351.2				342.8				—				—
	Funded status (Fair value of plan assets less PBO)	$	(49.0	)		$	(21.1	)		$	(40.6	)		$	(28.6	)		$	(12.2	)		$	(13.3	)
	Amounts recognized in the Consolidated Balance Sheets consist of:
	Other non-current assets	$	—			$	—			$	—			$	0.3			$	—			$	—
	Other current liabilities	—				—				0.5				0.6				0.8				1
	Pension and post-retirement benefit obligations(1)	49				21.1				40.1				28.3				11.4				12.3
	Components of accumulated other comprehensive income, net of tax:
	Unrecognized actuarial loss (gain)	51.9				33.3				78.1				63.6				(1.1		)		(2.9		)
	Unrecognized prior service cost (credit)	2.4				2.7				(0.4		)		(0.3		)		(1.5		)		(0.1		)
	-1	Pension and post-retirement obligations of $100.5 million as of December 31, 2014, increased from $61.7 million as of December 31, 2013, due to lower discount rates compared to prior year assumptions and the adoption of new mortality tables for the U.S. and Canadian plans.
	Of the amounts included within accumulated other comprehensive income (loss), we expect to recognize the following pre-tax amounts as components of net periodic benefit cost (income) for the year ended December 31, 2015:
		Pension Benefits								Post-retirement
	(in millions of dollars)	U.S.				International
	Actuarial loss (gain)	$	2.1			$	2.5			$	(0.2	)
	Prior service cost (credit)	0.4				—				(0.2		)
		$	2.5			$	2.5			$	(0.4	)
	Effective in 2015 we will change the amortization of our net actuarial loss included in accumulated other comprehensive income (loss) for the U.S. Salaried Plan from the average remaining service period of active employees expected to receive benefits under the plan to the average remaining life expectancy of all participants. This change was the result of the Company's decision to permanently freeze the benefits under the plan.
	All of our plans have projected benefit obligations in excess of plan assets, except for one Canadian pension plan.
	The accumulated benefit obligation for all pension plans was $590.0 million and $533.5 million at December 31, 2014 and 2013, respectively.
	The following table sets out information for pension plans with an accumulated benefit obligation in excess of plan assets:
		U.S.								International
	(in millions of dollars)	2014				2013				2014				2013
	Projected benefit obligation	$	212.9			$	177.4			$	371			$	331.2
	Accumulated benefit obligation	209.1				173				360.9				321.7
	Fair value of plan assets	163.9				156.3				331.1				302.8
	The components of net periodic benefit cost (income) for pension and post-retirement plans for the years ended December 31, 2014, 2013, and 2012, respectively, were as follows:
		Pension Benefits																							Post-retirement
		U.S.												International
	(in millions of dollars)	2014				2013				2012				2014				2013				2012			2014			2013			2012
	Service cost	$	2.1			$	2			$	1.2			$	0.8			$	1.6			$	2.1		$	0.2		$	0.2		$	0.2
	Interest cost	8.6				7.9				8.4				15.7				14.7				14.3			0.5			0.6			0.6
	Expected return on plan assets	(12.0		)		(10.4		)		(10.4		)		(22.8		)		(20.6		)		(16.2		)	—			—			—
	Amortization of net loss (gain)	5.1				9.6				6.2				1.9				2.4				2.2			(1.1		)	(0.6		)	(1.6		)
	Amortization of prior service cost (credit)	0.4				0.1				—				—				—				0.4			—			—			—
	Curtailment gain	—				—				—				—				(1.0		)		—			—			—			—
	Settlement loss (gain)	—				—				0.7				—				—				—			(0.1		)	—			—
	Net periodic benefit cost (income)	$	4.2			$	9.2			$	6.1			$	(4.4	)		$	(2.9	)		$	2.8		$	(0.5	)	$	0.2		$	(0.8	)
In 2013, we recognized a curtailment gain of $1.0 million related to freezing two of our Canadian pension plans.
During 2012, due to the Merger, we settled the Amended and Restated ACCO Brands Corporation Supplemental Retirement Plan (the "SRP"). The SRP provided that the accrued vested benefit of each participant be paid in an actuarial equivalent lump sum upon the occurrence of a change of control (as defined in the SRP), which resulted in a settlement charge of $0.7 million.
Other changes in plan assets and benefit obligations that were recognized in other comprehensive income (loss) during the years ended December 31, 2014, 2013, and 2012 were as follows:
	Pension Benefits																							Post-retirement
	U.S.												International
(in millions of dollars)	2014				2013				2012				2014				2013				2012			2014			2013			2012
Current year actuarial loss (gain)	$	35.4			$	(30.2	)		$	9.6			$	27.3			$	(10.0	)		$	11.4		$	(0.3	)	$	(2.8	)	$	0.1
Amortization of actuarial (loss) gain	(5.1		)		(9.6		)		(6.2		)		(1.9		)		(2.4		)		(2.2		)	1.1			0.6			1.6
Current year prior service cost (credit)	—				3.7				0.8				(0.2		)		—				(0.3		)	(0.3		)	—			—
Amortization of prior service cost	(0.4		)		(0.1		)		—				—				—				(0.4		)	—			—			—
Foreign exchange rate changes	—				—				—				(6.8		)		2.1				4.1			0.1			—			(0.1		)
Total recognized in other comprehensive income (loss)	$	29.9			$	(36.2	)		$	4.2			$	18.4			$	(10.3	)		$	12.6		$	0.6		$	(2.2	)	$	1.6
Total recognized in net periodic benefit cost (credit) and other comprehensive income (loss)	$	34.1			$	(27.0	)		$	10.3			$	14			$	(13.2	)		$	15.4		$	0.1		$	(2.0	)	$	0.8
Assumptions
The weighted average assumptions used to determine benefit obligations for the years ended December 31, 2014, 2013, and 2012 were as follows:
	Pension Benefits																		Post-retirement
	U.S.									International
	2014			2013			2012			2014			2013			2012			2014			2013		2012
Discount rate	4.2	%		5	%		4.2	%		3.4	%		4.3	%		4.3	%		3.7	%		4.4	%	4	%
Rate of compensation increase	N/A			N/A			N/A			3	%		3.3	%		4	%		—			—		—
The weighted average assumptions used to determine net periodic benefit cost (income) for the years ended December 31, 2014, 2013, and 2012 were as follows:
	Pension Benefits																		Post-retirement
	U.S.									International
	2014			2013			2012			2014			2013			2012			2014			2013		2012
Discount rate	5	%		4.2	%		5	%		4.3	%		4.3	%		4.7	%		4.4	%		4	%	4.5	%
Expected long-term rate of return	8.2	%		8.2	%		8.2	%		6.8	%		6.8	%		6.2	%		—			—		—
Rate of compensation increase	N/A			N/A			N/A			3.3	%		4	%		3.6	%		—			—		—
The weighted average health care cost trend rates used to determine post-retirement benefit obligations and net periodic benefit cost as of December 31, 2014, 2013, and 2012 were as follows:
	Post-retirement Benefits
	2014			2013			2012
Health care cost trend rate assumed for next year	8	%		8	%		7	%
Rate that the cost trend rate is assumed to decline (the ultimate trend rate)	5	%		5	%		5	%
Year that the rate reaches the ultimate trend rate	2023			2020			2020
Assumed health care cost trend rates may have a significant effect on the amounts reported for the health care plans. A one-percentage-point change in assumed health care cost trend rates would have the following effects:
	1-Percentage-				1-Percentage-
(in millions of dollars)	Point Increase				Point Decrease
Increase (decrease) on total of service and interest cost	$	0.2			$	(0.1	)
Increase (decrease) on post-retirement benefit obligation	1.3				(1.1		)
Plan Assets
The investment strategy for the Company is to optimize investment returns through a diversified portfolio of investments, taking into consideration underlying plan liabilities and asset volatility. Each plan has a different target asset allocation, which is reviewed periodically and is based on the underlying liability structure. The target asset allocation for our U.S. plan is 65% in equity securities, 20% in fixed income securities and 15% in alternative assets. The target asset allocation for non-U.S. plans is set by the local plan trustees.
Our pension plan weighted average asset allocations as of December 31, 2014 and 2013 were as follows:
		2014						2013
		U.S.			International			U.S.			International
Asset category
Equity securities		62	%		45	%		62	%		48	%
Fixed income		31			38			31			36
Real estate		—			3			—			3
Other(1)		7			14			7			13
Total		100	%		100	%		100	%		100	%
-1	Insurance contracts, multi-strategy hedge funds and cash and cash equivalents for certain of our plans.
U.S. Pension Plan Assets
The fair value measurements of our U.S. pension plan assets by asset category as of December 31, 2014 were as follows:
(in millions of dollars)	Quoted Prices				Significant				Significant				Fair Value
	in Active				Other				Unobservable				as of
	Markets for				Observable				Inputs				December 31,
	Identical				Inputs				(Level 3)				2014
	Assets				(Level 2)
	(Level 1)
Common stocks	$	8.3			$	—			$	—			$	8.3
Mutual funds	93.2				—				—				93.2
Common collective trust funds	—				8.9				—				8.9
Government debt securities	—				2.2				—				2.2
Corporate debt securities	—				16.7				—				16.7
Asset-backed securities	—				9.8				—				9.8
Multi-strategy hedge funds	—				9.5				—				9.5
Government mortgage-backed securities	—				8				—				8
Collateralized mortgage obligations, mortgage backed securities, and other	—				7.3				—				7.3
Total	$	101.5			$	62.4			$	—			$	163.9
The fair value measurements of our U.S. pension plan assets by asset category as of December 31, 2013 were as follows:
(in millions of dollars)	Quoted Prices				Significant				Significant				Fair Value
	in Active				Other				Unobservable				as of
	Markets for				Observable				Inputs				December 31,
	Identical				Inputs				(Level 3)				2013
	Assets				(Level 2)
	(Level 1)
Common stocks	$	9.4			$	—			$	—			$	9.4
Mutual funds	87.8				—				—				87.8
Common collective trust funds	—				7.5				—				7.5
Government debt securities	—				6.2				—				6.2
Corporate debt securities	—				14.9				—				14.9
Asset-backed securities	—				9.7				—				9.7
Multi-strategy hedge funds	—				7.8				—				7.8
Government mortgage-backed securities	—				7.5				—				7.5
Collateralized mortgage obligations, mortgage backed securities, and other	—				5.5				—				5.5
Total	$	97.2			$	59.1			$	—			$	156.3
Mutual funds and common stocks: The fair values of mutual fund and common stock fund investments are determined by obtaining quoted prices on nationally recognized securities exchanges (level 1 inputs).
Common collective trusts: The fair values of participation units held in common collective trusts are based on their net asset values, as reported by the managers of the common collective trusts and as supported by the unit prices of actual purchase and sale transactions occurring as of or close to the financial statement date (level 2 inputs).
Debt securities: Fixed income securities, such as corporate and government bonds, collateralized mortgage obligations, asset-backed securities, government mortgage-backed securities and other debt securities are valued using quotes from independent pricing vendors based on recent trading activity and other relevant information, including market interest rate curves, referenced credit spreads, and estimated prepayment rates, where applicable (level 2 inputs).
Multi-strategy hedge funds: The fair values of participation units held in multi-strategy hedge funds are based on their net asset values, as reported by the managers of the funds and are based on the daily closing prices of the underlying investments (level 2 inputs).
International Pension Plans Assets
The fair value measurements of our international pension plans assets by asset category as of December 31, 2014 were as follows:
(in millions of dollars)	Quoted Prices				Significant				Significant				Fair Value
	in Active				Other				Unobservable				as of
	Markets for				Observable				Inputs				December 31,
	Identical				Inputs				(Level 3)				2014
	Assets				(Level 2)
	(Level 1)
Cash and cash equivalents	$	6.1			$	—			$	—			$	6.1
Equity securities	156.7				—				—				156.7
Corporate debt securities	—				118.6				—				118.6
Multi-strategy hedge funds	—				25.1				—				25.1
Insurance contracts	—				18.4				—				18.4
Other debt securities	—				12.1				—				12.1
Real estate	—				9.7				0.9				10.6
Government debt securities	—				3.6				—				3.6
Total	$	162.8			$	187.5			$	0.9			$	351.2
The fair value measurements of our international pension plans assets by asset category as of December 31, 2013 were as follows:
(in millions of dollars)	Quoted Prices				Significant				Significant				Fair Value
	in Active				Other				Unobservable				as of
	Markets for				Observable				Inputs				December 31,
	Identical				Inputs				(Level 3)				2013
	Assets				(Level 2)
	(Level 1)
Cash and cash equivalents	$	2.2			$	—			$	—			$	2.2
Equity securities	167.7				—				—				167.7
Corporate debt securities	—				110				—				110
Multi-strategy hedge funds	—				25.9				—				25.9
Insurance contracts	—				13.6				—				13.6
Other debt securities	—				10.6				—				10.6
Real estate	—				9				1				10
Government debt securities	—				2.8				—				2.8
Total	$	169.9			$	171.9			$	1			$	342.8
Equity securities: The fair values of equity securities are determined by obtaining quoted prices on nationally recognized securities exchanges (level 1 inputs).
Debt securities: Fixed income securities, such as corporate and government bonds and other debt securities, consist of index linked securities. These debt securities are valued using quotes from independent pricing vendors based on recent trading activity and other relevant information, including market interest rate curves, referenced credit spreads, and estimated prepayment rates, where applicable (level 2 inputs).
Real estate: Real estate, exclusive of the Canadian plan, consists of managed real estate investment trust securities (level 2 inputs). Real estate in the Canadian plans is appraised by a third party on an annual basis (level 3 inputs). There have been no substantial purchases or gains/losses in 2014 or 2013.
Insurance contracts: Valued at contributions made, plus earnings, less participant withdrawals and administrative expenses, which approximate fair value (level 2 inputs).
Multi-strategy hedge funds: The fair values of participation units held in multi-strategy hedge funds are based on their net asset values, as reported by the managers of the funds and are based on the daily closing prices of the underlying investments (level 2 inputs).
Cash Contributions
We contributed $12.4 million to our pension and post-retirement plans in 2014 and expect to contribute $8.1 million in 2015.
The following table presents estimated future benefit payments to participants for the next ten fiscal years:
	Pension				Post-retirement
(in millions of dollars)	Benefits				Benefits
2015	$	23.7			$	0.8
2016	$	24.3			$	0.8
2017	$	25			$	0.8
2018	$	25.9			$	0.8
2019	$	26.4			$	0.8
Years 2020 — 2024	$	137.5			$	3.6
We also sponsor a number of defined contribution plans. Contributions are determined under various formulas. Costs related to such plans amounted to $8.6 million, $8.4 million and $8.0 million for the years ended December 31, 2014, 2013, and 2012, respectively.

StockBased_Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	Stock-Based Compensation
	The 2011 Amended and Restated ACCO Brands Corporation Incentive Plan provides for stock based awards in the form of stock options, stock-settled appreciation rights ("SSARs"), restricted stock units ("RSUs") and performance stock units ("PSUs"), any of which may be granted alone or with other types of awards and dividend equivalents. We have one share-based compensation plan under which a total of 15,665,000 shares may be issued under awards to key employees and non-employee directors.
	The following table summarizes the impact of all stock-based compensation expense on our Consolidated Statements of Income for the years ended December 31, 2014, 2013 and 2012.
	(in millions of dollars)	2014				2013				2012
	Advertising, selling, general and administrative expense	$	15.7			$	16.4			$	9.2
	Income (loss) from continuing operations before income tax	(15.7		)		(16.4		)		(9.2		)
	Income tax expense (benefit)	(5.7		)		(5.9		)		(3.3		)
	Net income (loss)	$	(10.0	)		$	(10.5	)		$	(5.9	)
	There was no capitalization of stock based compensation expense.
	Stock-based compensation expense by award type for the years ended December 31, 2014, 2013 and 2012 was as follows:
	(in millions of dollars)	2014				2013				2012
	Stock option compensation expense	$	3.7			$	3			$	1.8
	SSAR compensation expense	—				—				0.1
	RSU compensation expense	6.6				5.5				3.9
	PSU compensation expense	5.4				7.9				3.4
	Total stock-based compensation expense	$	15.7			$	16.4			$	9.2
	Stock Option and SSAR Awards
	The exercise price of each stock option and SSAR equals or exceeds the fair market price of our stock on the date of grant. Options/SSARs can generally be exercised over a maximum term of up to seven years. Stock options/SSARs outstanding as of December 31, 2014 generally vest ratably over three years. During 2014, 2013 and 2012, we granted only option awards. The fair value of each option grant is estimated on the date of grant using the Black-Scholes option-pricing model using the weighted average assumptions as outlined in the following table:
		Year Ended December 31,
		2014					2013					2012
	Weighted average expected lives	4.5			years		4.5			years		4.5		years
	Weighted average risk-free interest rate	1.33			%		0.75			%		0.75		%
	Weighted average expected volatility	52.2			%		55.3			%		55.7		%
	Expected dividend yield	0			%		0			%		0		%
	Weighted average grant date fair value	$	2.69				$	3.43				$	5.41
	Prior to 2012 we utilized historical volatility for a pool of peer companies for a period of time that is comparable to the expected life of the option/SSAR to determine volatility assumptions for stock-based compensation. Beginning in 2012 volatility was calculated using a combination of peer companies (50%) and ACCO Brands' historic volatility (50%). In 2013, volatility was calculated using a combination of peer companies (25%) and ACCO Brands' historic volatility (75%). In 2014, volatility was calculated using ACCO Brands' historic volatility (100%). The weighted average expected option/SSAR term reflects the application of the simplified method, which defines the life as the average of the contractual term of the option/SSAR and the weighted average vesting period for all option tranches. The risk-free interest rate for the expected term of the option is based on the U.S. Treasury yield curve in effect at the time of grant. Forfeitures are estimated at the time of grant in order to calculate the amount of share-based payment awards ultimately expected to vest. The forfeiture rate is based on historical experience.
	A summary of the changes in stock options/SSARs outstanding under our stock compensation plans during the year ended December 31, 2014 are presented below:
		Number			Weighted				Weighted  Average		Aggregate
		Outstanding			Average				Remaining		Intrinsic
					Exercise				Contractual Term		Value
					Price
	Outstanding at December 31, 2013	4,806,475			$	8.3
	Granted	1,630,631			$	6.14
	Exercised	(593,731	)		$	1.35
	Lapsed	(869,989	)		$	19.18
	Outstanding at December 31, 2014	4,973,386			$	7.02			4.2 years		$	13	million
	Options/SSARs vested or expected to vest	4,852,670			$	7.03			4.2 years		$	12.7	million
	Exercisable shares at December 31, 2014	2,427,221			$	7.03			2.6 years		$	7.3	million
	We received cash of $0.3 million and $0.2 million from the exercise of stock options for the years ended December 31, 2014 and 2012, respectively. The aggregate intrinsic value of options exercised during the years ended December 31, 2014 and 2012, was not significant. No options were exercised in the year ended December 31, 2013.
	The aggregate intrinsic value of SSARs exercised during the years ended December 31, 2014, 2013 and 2012 totaled $3.6 million, $0.7 million and $2.5 million, respectively.
	The fair value of options and SSARs vested during the years ended December 31, 2014, 2013 and 2012 was $3.2 million, $1.9 million and $1.0 million, respectively. As of December 31, 2014, we had unrecognized compensation expense related to stock options of $4.5 million, which will be recognized over a weighted-average period of 1.7 years.
	Stock Unit Awards
	RSUs vest over a pre-determined period of time, generally three to four years from the date of grant. Stock-based compensation expense for the years ended December 31, 2014, 2013 and 2012 includes $0.8 million, $0.9 million and $0.9 million, respectively, of expense related to RSUs granted to non-employee directors, which became fully vested on the grant date. PSUs also vest over a pre-determined period of time, minimally three years, but are further subject to the achievement of certain business performance criteria in future periods. Based upon the level of achieved performance, the number of shares actually awarded can vary from 0% to 150% of the original grant.
	There were 2,430,683 RSUs outstanding at December 31, 2014. All outstanding RSUs as of December 31, 2014 vest within four years of their date of grant. Also outstanding at December 31, 2014 were 2,837,162 PSUs. All outstanding PSUs as of December 31, 2014 vest at the end of their respective performance periods subject to percentage achieved of the performance targets associated with such awards. Upon vesting, all of the remaining PSU awards will be converted into the right to receive one share of common stock of the Company for each unit that vests. The cost of these awards is determined using the fair value of the shares on the date of grant, and compensation expense is generally recognized over the period during which the employees provide the requisite service to the Company. We generally recognize compensation expense for our PSU awards ratably over the performance period based on management’s judgment of the likelihood that performance measures will be attained. We generally recognize compensation expense for our RSU awards ratably over the service period.
	A summary of the changes in the RSUs outstanding under our equity compensation plans during 2014 are presented below:
		Stock			Weighted
		Units			Average
					Grant
					Date Fair
					Value
	Outstanding at December 31, 2013	2,021,123			$	8.95
	Granted	881,554			$	6.12
	Vested and distributed	(321,697	)		$	8.45
	Vested and deferred distributed	(43,428	)		$	8.29
	Forfeited	(106,869	)		$	8.61
	Outstanding at December 31, 2014	2,430,683			$	8.02
	Vested and deferred at December 31, 2014(1)	175,504			$	7.98
	-1	Included in outstanding at December 31, 2014. Vested and deferred RSUs are primarily related to deferred compensation for non-employee directors.
	For the years ended December 31, 2013 and 2012 we granted 791,349 and 671,941 shares of RSUs, respectively. The weighted-average grant date fair value of our RSUs was $6.12, $7.14, and $10.98 for the years ended December 31, 2014, 2013 and 2012, respectively. The fair value of stock unit awards that vested during the years ended December 31, 2014, 2013 and 2012 was $3.2 million, $1.0 million and $5.9 million, respectively. As of December 31, 2014, we have unrecognized compensation expense related to RSUs of $4.8 million. The unrecognized compensation expense related to RSUs will be recognized over a weighted-average period of 1.7 years.
	A summary of the changes in the PSUs outstanding under our equity compensation plans during 2014 are presented below:
		Stock			Weighted
		Units			Average
					Grant
					Date Fair
		Value
Outstanding at December 31, 2013	2,294,792			$	7.94
Granted	1,316,867			$	6.14
Vested	(496,926	)		$	8.91
Forfeited and cancelled	(136,411	)		$	7.04
Other - decrease due to performance of PSU's	(141,160	)		$	6.39
Outstanding at December 31, 2014	2,837,162			$	7.37
For the years ended December 31, 2013 and 2012 we granted 1,174,465 and 864,838 shares of PSUs, respectively. For the years ended December 31, 2014, 2013 and 2012 we paid out 496,926, 419,205 and 3,119 shares of PSUs, respectively. The weighted-average grant date fair value of our PSUs was $6.14, $7.59, and $8.53 for the years ended December 31, 2014, 2013 and 2012, respectively. The fair value of PSUs that vested during the years ended December 31, 2014, and 2013 was $4.4 million, and $3.0 million, respectively. The fair value of PSUs that vested during the year ended December 31, 2012 were immaterial. As of December 31, 2014, we have unrecognized compensation expense related to PSUs of $7.0 million. The unrecognized compensation expense related to PSUs will be recognized over a weighted-average period of 1.6 years.
We will satisfy the requirement for delivering the common shares for stock-based plans by issuing new shares.

Inventories

Inventories	12 Months Ended
	Dec. 31, 2014
Inventory Disclosure [Abstract]
Inventories	Inventories
	Inventories are stated at the lower of cost or market value. The components of inventories were as follows:
		December 31,
	(in millions of dollars)	2014		2013
	Raw materials	$	36.7	$	36.1
	Work in process	2		2.4
	Finished goods	191.2		216.2
	Total inventories	$	229.9	$	254.7

Property_Plant_and_Equipment

Property, Plant and Equipment	12 Months Ended
	Dec. 31, 2014
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	Property, Plant and Equipment, Net
	The components of net property, plant and equipment were as follows:
		December 31,
	(in millions of dollars)	2014			2013
	Land and improvements	$	21.5		$	23.3
	Buildings and improvements to leaseholds	129			133.3
	Machinery and equipment	374.2			352.4
	Construction in progress	23			39.5
		547.7			548.5
	Less: accumulated depreciation	(312.2		)	(295.2		)
	Property, plant and equipment, net(1)	$	235.5		$	253.3
	-1	Net property, plant and equipment as of December 31, 2014 and 2013 contained $37.0 million and $32.6 million of computer software assets, which are classified within machinery and equipment and construction in progress. Amortization of software costs was $7.4 million, $6.7 million and $8.4 million for the years ended December 31, 2014, 2013 and 2012, respectively.

Goodwill_and_Identifiable_Inta

Goodwill and Identifiable Intangibles	12 Months Ended
	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Identifiable Intangibles	Goodwill and Identifiable Intangible Assets
	Goodwill
	Changes in the net carrying amount of goodwill by segment were as follows:
		(in millions of dollars)	ACCO				ACCO				Computer			Total
			Brands				Brands				Products
			North America				International				Group
		Balance at December 31, 2012	$	396.3			$	186.3			$	6.8		$	589.4
		Mead C&OP acquisition	1.4				0.5				—			1.9
		Translation	(4.6		)		(18.4		)		—			(23.0		)
		Balance at December 31, 2013	393.1				168.4				6.8			568.3
		Translation	(5.5		)		(17.9		)		—			(23.4		)
		Balance at December 31, 2014	$	387.6			$	150.5			$	6.8		$	544.9
		Goodwill	$	518.5			$	234.7			$	6.8		$	760
		Accumulated impairment losses	(130.9		)		(84.2		)		—			(215.1		)
		Balance at December 31, 2014	$	387.6			$	150.5			$	6.8		$	544.9
	The authoritative guidance on goodwill and other intangible assets requires that goodwill be tested for impairment at a reporting unit level. We have determined that our reporting units are ACCO Brands North America, ACCO Brands International and Computer Products Group segments. We test goodwill for impairment at least annually and whenever events or circumstances make it more likely than not that an impairment may have occurred. We performed this annual assessment in the second quarter of 2014 and concluded that no impairment existed. For the North America reporting unit, we determined that its fair value exceeded its carrying amount by 13%. Key financial assumptions utilized to determine the fair value of the North America reporting unit included annual sales growth rates in the range of (1.4)% to 0.2% and a 9.0% discount rate. For the International reporting unit, we determined that its fair value exceeded its carrying amount by 52%. Key financial assumptions utilized to determine the fair value of the International reporting unit included annual sales growth rates in the range of 3.2% to 4.4% and a 10.5% discount rate. For the Computer Products Group reporting unit we determined that its fair value exceeded its carrying amount by 33%. Key financial assumptions utilized to determine the fair value of the Computer Products Group reporting unit included annual sales growth rates in the range of (3.5)% to 2.5% and a 10.0% discount rate.
	A considerable amount of management judgment and assumptions are required in performing the impairment tests, principally in determining the fair value of each reporting unit and the indefinite lived intangible assets. While we believe our judgments and assumptions are reasonable, different assumptions could change the estimated fair values and, therefore, impairment charges could be required. Significant negative industry or economic trends, disruptions to our business, loss of significant customers, inability to effectively integrate acquired businesses, unexpected significant changes or planned changes in the use of the assets or in entity structure and divestitures may adversely impact the assumptions used in the valuations and ultimately result in future impairment charges.
	Identifiable Intangibles
	We test indefinite-lived intangibles for impairment at least annually and on an interim basis if an event or circumstance indicates that it is more likely than not that an impairment loss has been incurred. We performed this annual assessment in the second quarter of 2014 and concluded that no impairment exists. However, due to the recent acquisition of Mead C&OP, the fair values of certain indefinite-lived trade names are not substantially above their carrying values.
	The gross carrying value and accumulated amortization by class of identifiable intangible assets as of December 31, 2014 and 2013 were as follows:
		31-Dec-14											December 31, 2013
	(in millions of dollars)	Gross				Accumulated				Net			Gross				Accumulated				Net
		Carrying				Amortization				Book			Carrying				Amortization				Book
		Amounts								Value			Amounts								Value
	Indefinite-lived intangible assets:
	Trade names	$	499.4			$	(44.5	)	(1)	$	454.9		$	510.5			$	(44.5	)	(1)	$	466
	Amortizable intangible assets:
	Trade names	127.7				(55.5		)		72.2			131.3				(47.5		)		83.8
	Customer and contractual relationships	100.4				(57.2		)		43.2			102.7				(46.4		)		56.3
	Patents/proprietary technology	10.2				(9.1		)		1.1			10.3				(9.4		)		0.9
	Subtotal	238.3				(121.8		)		116.5			244.3				(103.3		)		141
	Total identifiable intangibles	$	737.7			$	(166.3	)		$	571.4		$	754.8			$	(147.8	)		$	607
	-1	Accumulated amortization prior to the adoption of authoritative guidance on goodwill and other intangible assets, at which time further amortization ceased.
	The Company’s intangible amortization was $22.2 million, $24.7 million and $19.9 million for the years ended December 31, 2014, 2013 and 2012, respectively.
	Estimated amortization expense for amortizable intangible assets for the next five years is as follows:
	(in millions of dollars)	2015				2016				2017			2018				2019
	Estimated amortization expense	$	19.8			$	17.4			$	14.2		$	12			$	9.9
	Actual amounts of amortization expense may differ from estimated amounts due to changes in foreign currency exchange rates, additional intangible asset acquisitions, impairment of intangible assets, accelerated amortization of intangible assets and other events.

Restructuring

Restructuring	12 Months Ended
	Dec. 31, 2014
Restructuring and Related Activities [Abstract]
Restructuring	Restructuring
	During the fourth quarter of 2014, we committed to certain restructuring actions which further enhance our ongoing efforts to centralize, control and streamline our global and regional operational, supply chain and administrative functions. These plans were primarily associated with our North American school, office and computer products workforce. The associated actions will be substantially completed during the first half of 2015.
	During the fourth quarter of 2013, in light of current economic and industry conditions and in anticipation of an uncertain demand environment as well as the expected impact of industry consolidation in 2014, we committed to restructuring actions that were primarily focused on streamlining our North American school, office and computer products workforce, impacting all operational, supply chain and administrative functions. These efforts were substantially completed in 2014.
	Also in 2013, we committed to incremental cost savings plans intended to improve the efficiency and effectiveness of our businesses. These plans relate to cost-reduction initiatives within our North America and International segments, and were primarily associated with post-merger integration activities of the North American operations following the Merger and changes in the European business model and manufacturing footprint. The most significant of these plans was finalized during the second quarter of 2013, and related to the closure of our Brampton, Canada distribution and manufacturing facility and relocation of its activities to other facilities within the Company.
	In 2012, we initiated cost savings plans related to the consolidation and integration of our then recently acquired Mead C&OP business. The most significant of these plans related to our dated goods business and included closure of a manufacturing and distribution facility in East Texas, Pennsylvania and relocation of its activities to other facilities within the Company, which was completed during the second quarter of 2013. We also committed to certain cost savings plans that were expected to improve the efficiency and effectiveness of our U.S. and European businesses, which were independent of any plans related to our acquisition of Mead C&OP.
	For the years ended December 31, 2014, 2013 and 2012, we recorded restructuring charges of $5.5 million, $30.1 million and $24.3 million, respectively.
	A summary of the activity in the restructuring accounts and a reconciliation of the liability for the year ended December 31, 2014 was as follows:
	(in millions of dollars)	Balance at December 31, 2013		Provision			Cash			Non-cash			Balance at December 31, 2014
							Expenditures			Items/
										Currency Change
	Employee termination costs	$	19.1	$	4.3		$	(15.3	)	$	(0.3	)	$	7.8
	Termination of lease agreements	1.4		0.5			(1.5		)	0.2			0.6
	Asset impairments/net loss on disposal of assets resulting from restructuring activities	—		0.6			—			(0.6		)	—
	Other	—		0.1			(0.1		)	—			—
	Total restructuring liability	$	20.5	$	5.5		$	(16.9	)	$	(0.7	)	$	8.4
	Management expects the $7.8 million employee termination costs balance to be substantially paid within the next 12 months. Cash payments associated with lease termination costs of $0.6 million are also expected to be paid within the next 12 months.
	The Company's East Texas, Pennsylvania manufacturing and distribution facility was sold during the second quarter of 2014 and generated net cash proceeds of $3.2 million. An immaterial loss was recognized on the sale.
	A summary of the activity in the restructuring accounts and a reconciliation of the liability for the year ended December 31, 2013 was as follows:
	(in millions of dollars)	Balance at December 31, 2012		Provision			Cash			Non-cash			Balance at December 31, 2013
							Expenditures			Items/
										Currency Change
	Employee termination costs	$	15.2	26.4			(22.5		)	—			$	19.1
	Termination of lease agreements	0.2		1.9			(0.7		)	—			1.4
	Asset impairments/net loss on disposal of assets resulting from restructuring activities	—		1.2			0.5			(1.7		)	—
	Other	—		0.6			(0.6		)	—			—
	Total restructuring liability	$	15.4	$	30.1		$	(23.3	)	$	(1.7	)	$	20.5
	Not included in the restructuring table above is a $2.5 million net gain on the sale of the Company's Ireland distribution facility. The sale, which occurred during the second quarter of 2013, generated net cash proceeds of $3.8 million. The gain on sale was recognized in the Consolidated Statements of Income in SG&A.
	A summary of the activity in the restructuring accounts and a reconciliation of the liability for the year ended December 31, 2012 was as follows:
	(in millions of dollars)	Balance at December 31, 2011		Provision/Income			Cash			Non-cash			Balance at December 31, 2012
							Expenditures			Items/
										Currency Change
	Employee termination costs	0.3		24			(9.2		)	0.1			$	15.2
	Termination of lease agreements	0.7		(0.1		)	(0.4		)	—			0.2
	Asset impairments/net loss on disposal of assets resulting from restructuring activities	0.2		0.3			(0.3		)	(0.2		)	—
	Other	—		0.1			(0.1		)	—			—
	Total restructuring liability	$	1.2	$	24.3		$	(10.0	)	$	(0.1	)	$	15.4
	Not included in the restructuring table above is a $0.1 million net gain on the sale of a manufacturing facility and certain assets in the U.K. The sale, which occurred during the second quarter of 2012, generated net cash proceeds of $2.7 million. The gain on sale was recognized in the Consolidated Statements of Income in SG&A.

Income_Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes
	The components of income (loss) before income taxes from continuing operations were as follows:
	(in millions of dollars)	2014			2013			2012
	Domestic operations	$	43.5		$	1.8		$	(94.9	)
	Foreign operations	93.5			89.9			90.5
	Total	$	137		$	91.7		$	(4.4	)
	The reconciliation of income taxes computed at the U.S. federal statutory income tax rate of 35% to our effective income tax rate for continuing operations was as follows:
	(in millions of dollars)	2014			2013			2012
	Income tax at U.S. statutory rate of 35%	$	47.9		$	32.1		$	(1.5	)
	State, local and other tax, net of federal benefit	2.1			(1.4		)	(0.6		)
	U.S. effect of foreign dividends and earnings	7.4			7.5			23.7
	Unrealized foreign currency loss on intercompany debt	(3.0		)	(3.5		)	(7.7		)
	Foreign income taxed at a lower effective rate	(8.6		)	(6.4		)	(7.2		)
	Expiration of tax credits	11.7			—			—
	Decrease in valuation allowance	(11.5		)	(11.6		)	(145.1		)
	U.S. effect of capital gain	—			—			11
	Correction of deferred tax error	—			(3.1		)	0.8
	Change in prior year tax estimates and other	(0.6		)	0.8			5.2
	Income taxes as reported	$	45.4		$	14.4		$	(121.4	)
	Effective tax rate	33.1		%	15.7		%	NM
	For 2014, we recorded an income tax expense from continuing operations of $45.4 million on income before taxes of $137.0 million. The effective rate for 2014 of 33.1% is less than the U.S. statutory income tax rate primarily due to earnings from foreign jurisdictions, which are taxed at a lower rate. In 2014, the Foreign Tax Credit Carryover from 2005 in the amount of $11.7 million expired; the valuation allowance on the carryover was also removed. These items netted together did not affect income tax expense.
	For 2013, we recorded an income tax expense from continuing operations of $14.4 million on income before taxes of $91.7 million. Included in the results for 2013 is an out-of-period adjustment of $3.1 million made to correct an error related to the estimate of the tax benefit for certain equity compensation grants exercised during 2012. The Company determined that the impact of the error was not significant to the current or prior period, and accordingly, a restatement of the prior period tax expense was not deemed to be necessary. The low effective rate for 2013 of 15.7% is primarily due to the net tax benefit from the release of foreign valuation allowances of $11.6 million and earnings from foreign jurisdictions which are taxed at a lower rate.
	We continually review the need for establishing or releasing valuation allowances on our deferred tax attributes. In 2014, the company had a net tax expense from the release and generation of valuation allowances in U.S. state jurisdictions and certain foreign jurisdictions in the amount of $0.2 million. In 2013, the company had a net tax benefit from the release and generation of valuation allowances in certain foreign jurisdictions in the amount of $11.6 million due to there being sufficient evidence in the form of future taxable income in those jurisdictions. Following the Merger in the second quarter of 2012, the Company analyzed its need for maintaining valuation reserves against the expected U.S. future tax benefits. Based on that analysis the Company determined that as of June 30, 2012 there existed sufficient evidence in the form of future taxable income from the combined operations to release $126.1 million of the valuation allowance that had been previously recorded against the U.S. deferred income tax assets. Also in 2012, valuation allowances in the amount of $19.0 million were released in certain foreign jurisdictions. The resulting U.S. deferred tax assets are comprised principally of net operating loss carryforwards that are expected to be fully realized within the expiration period and other temporary differences.
	For 2012, we recorded an income tax benefit from continuing operations of $121.4 million on a loss before taxes of $4.4 million. The tax benefit for 2012 was primarily due to the $145.1 million release of valuation allowances.
	The effective tax rates for discontinued operations were 35.0% and 25.6% in 2013 and 2012, respectively.
	The U.S. federal statute of limitations remains open for the year 2011 and forward. Foreign and U.S. state jurisdictions have statutes of limitations generally ranging from 2 to 5 years. Years still open to examination by foreign tax authorities in major jurisdictions include Australia (2010 forward), Brazil (2009 forward), Canada (2007 forward) and the U.K. (2011 forward). We are currently under examination in various foreign jurisdictions.
	The components of the income tax expense (benefit) from continuing operations were as follows:
	(in millions of dollars)	2014			2013			2012
	Current expense
	Federal and other	$	1.6		$	0.8		$	6
	Foreign	23.2			25.3			27.1
	Total current income tax expense	24.8			26.1			33.1
	Deferred expense (benefit)
	Federal and other	15.4			(2.8		)	(129.5		)
	Foreign	5.2			(8.9		)	(25.0		)
	Total deferred income tax expense (benefit)	20.6			(11.7		)	(154.5		)
	Total income tax expense (benefit)	$	45.4		$	14.4		$	(121.4	)
	The components of deferred tax assets (liabilities) were as follows:
	(in millions of dollars)	2014			2013(1)
	Deferred tax assets
	Compensation and benefits	$	20.4		$	23.8
	Pension	32			19.1
	Inventory	7.1			2.6
	Other reserves	19.8			20.3
	Accounts receivable	7.6			7.4
	Foreign tax credit carryforwards	11.9			20.5
	Net operating loss carryforwards	87.5			114.6
	Unrealized foreign currency loss on intercompany debt	3.2			0.1
	Other	8.8			6.9
	Gross deferred income tax assets	198.3			215.3
	Valuation allowance	(23.9		)	(33.0		)
	Net deferred tax assets	174.4			182.3
	Deferred tax liabilities
	Depreciation	(19.1		)	(21.1		)
	Identifiable intangibles	(256.6		)	(259.5		)
	Gross deferred tax liabilities	(275.7		)	(280.6		)
	Net deferred tax liabilities	$	(101.3	)	$	(98.3	)
	(1) Certain adjustments to the classifications of deferred tax balances at December 31, 2013 were made to conform to current year classifications. The adjustments do not impact the total net deferred tax liability.
	Deferred income taxes are not provided on certain undistributed earnings of foreign subsidiaries that are expected to be permanently reinvested in those companies, which aggregate to approximately $565 million and $549 million as of December 31, 2014 and at 2013, respectively. If these amounts were distributed to the U.S., in the form of a dividend or otherwise, we would be subject to additional U.S. income taxes. Determination of the amount of unrecognized deferred income tax liabilities on these earnings is not practicable.
	As of December 31, 2014, $257.5 million of net operating loss carryforwards are available to reduce future taxable income of domestic and international companies. These loss carryforwards expire in the years 2015 through 2031 or have an unlimited carryover period.
	Interest and penalties related to unrecognized tax benefits are recognized within "Income tax expense (benefit)" in the Consolidated Statements of Income. As of December 31, 2014, we have accrued a cumulative amount of $7.0 million for interest and penalties on unrecognized tax benefits.
	A reconciliation of the beginning and ending amount of unrecognized tax benefits were as follows:
	(in millions of dollars)	2014			2013			2012
	Balance at beginning of year	$	52.1		$	56.3		$	5.5
Additions for tax positions of prior years	3.5			2.4			2
Reductions for tax positions of prior years	(4.2		)	—			(1.5		)
Settlements	—			(0.1		)	—
Mead C&OP acquisition	—			—			50.3
Foreign exchange changes	(5.5		)	(6.5		)	—
Balance at end of year	$	45.9		$	52.1		$	56.3
As of December 31, 2014 the amount of unrecognized tax benefits decreased to $45.9 million, of which $44.2 million would affect our effective tax rate, if recognized. We expect the amount of unrecognized tax benefits to change within the next twelve months, but these changes are not expected to have a significant impact on our results of operations or financial position. None of the positions included in the unrecognized tax benefit relate to tax positions for which the ultimate deductibility is highly certain, but for which there is uncertainty about such deductibility.
Income Tax Assessment
In connection with our May 1, 2012 acquisition of Mead C&OP we assumed all of the tax liabilities for the acquired foreign operations including Tilibra Produtos de Papelaria Ltda. ("Tilibra"). In December of 2012, the Federal Revenue Department of the Ministry of Finance of Brazil ("FRD") issued a tax assessment (the "Brazilian Tax Assessment") against Tilibra, which challenged the tax deduction of goodwill from Tilibra's taxable income for the year 2007. A second assessment challenging the deduction of goodwill from Tilibra's taxable income for the years 2008, 2009 and 2010 was issued by FRD in October 2013.
Tilibra is disputing both of the tax assessments through established administrative procedures. We believe we have meritorious defenses and intend to vigorously contest these matters; however, there can be no assurances that we will ultimately prevail. We are in the early stages of the process to challenge the FRD's tax assessments, and the ultimate outcome will not be determined until the Brazilian tax appeal process is complete, which is expected to take a number of years. In addition, Tilibra's 2011-2012 tax years remain open and subject to audit, and there can be no assurances that we will not receive additional tax assessments regarding the goodwill for one or both of those years. With respect to the years 2008 to 2012 we have accrued R102.7 million ($38.7 million based on December 31, 2014 exchange rates) of tax, penalties and interest. If the FRD's initial position is ultimately sustained, the amount assessed would materially and adversely affect our cash flow in the year of settlement.
Because there is no settled legal precedent on which to base a definitive opinion as to whether we will ultimately prevail, we consider the outcome of this dispute to be uncertain. Since it is not more likely than not that we will prevail, in the fourth quarter of 2012, we recorded a reserve in the amount of $44.5 million (at December 31, 2012 exchange rates) in consideration of this contingency, of which $43.3 million was recorded as an adjustment to the purchase price and which included the 2008-2012 tax years plus interest and penalties through December 2012. In addition, we will continue to accrue interest related to this contingency until such time as the outcome is known or until evidence is presented that we are more likely than not to prevail. During 2014, 2013 and 2012, we accrued additional interest as a charge to current tax expense of $3.2 million, $1.8 million and $1.2 million, respectively.

Earnings_Per_Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2014
Earnings Per Share [Abstract]
Earnings Per Share	Earnings per Share
	Total outstanding shares as of December 31, 2014 and 2013 were 111.9 million and 113.7 million, respectively. On May 1, 2012 we issued 57.1 million shares of common stock related to the Merger. In 2014, we repurchased and retired 2.8 million shares of common stock, in the third and fourth quarters. The calculation of basic earnings per common share is based on the weighted average number of common shares outstanding in the year, or period, over which they were outstanding. Our calculation of diluted earnings per common share assumes that any common shares outstanding were increased by shares that would be issued upon exercise of those stock units for which the average market price for the period exceeds the exercise price; less, the shares that could have been purchased by us with the related proceeds, including compensation expense measured but not yet recognized, net of tax.
	(in millions)	2014	2013	2012
	Weighted-average number of common shares outstanding — basic	113.7	113.5	94.1
	Stock options	0.1	—	0.1
	Stock-settled stock appreciation rights	0.6	0.9	0.9
	Restricted stock units	1.9	1.3	1
	Adjusted weighted-average shares and assumed conversions — diluted	116.3	115.7	96.1
	Awards of shares representing approximately 4.3 million, 4.9 million and 5.4 million as of December 31, 2014, 2013 and 2012, respectively, of potentially dilutive shares of common stock were outstanding and are not included in the computation of dilutive earnings per share as their effect would have been anti-dilutive because their exercise prices were higher than the average market price during the period.

Derivative_Financial_Instrumen

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments
	We are exposed to various market risks, including changes in foreign currency exchange rates and interest rate changes. We enter into financial instruments to manage and reduce the impact of these risks, not for trading or speculative purposes. The counterparties to these financial instruments are major financial institutions. We continually monitor our foreign currency exposures in order to maximize the overall effectiveness of our foreign currency hedge positions. Principal currencies hedged include the U.S. dollar, Euro, Australian dollar, Canadian dollar, British pound and Japanese yen. We are subject to credit risk, which relates to the ability of counterparties to meet their contractual payment obligations or the potential non-performance by counterparties to financial instrument contracts. Management continues to monitor the status of our counterparties and will take action, as appropriate, to further manage our counterparty credit risk. There are no credit contingency features in our derivative financial instruments.
	When hedge accounting is applicable, the date in which we enter into a derivative, the derivative is designated as a hedge of the identified exposure. We measure the effectiveness of our hedging relationships both at hedge inception and on an ongoing basis.
	Forward Currency Contracts
	We enter into forward foreign currency contracts to reduce the effect of fluctuating foreign currencies, primarily on foreign denominated inventory purchases and intercompany loans. The majority of the Company’s exposure to local currency movements is in Europe, Brazil, Canada, Australia, Mexico and Japan.
	Forward currency contracts are used to hedge foreign denominated inventory purchases for Europe, Canada, Australia, and Japan and are designated as cash flow hedges. Unrealized gains and losses on these contracts for inventory purchases are deferred in other comprehensive income (loss) until the contracts are settled and the underlying hedged transactions are recognized, at which time the deferred gains or losses will be reported in the "Cost of products sold" line in the Consolidated Statements of Income. As of December 31, 2014 and 2013, the Company had cash flow designated foreign exchange contracts outstanding with a U.S. dollar equivalent notional value of $68.4 million and $88.7 million, respectively.
	Forward currency contracts used to hedge foreign denominated intercompany loans are not designated as hedging instruments. Gains and losses on these derivative instruments are recognized within "Other expense, net" in the Consolidated Statements of Income and are largely offset by the changes in the fair value of the hedged item. The periods of the forward foreign exchange contracts correspond to the periods of the hedged transactions, and do not extend beyond 2015. As of December 31, 2014 and 2013, we have undesignated foreign exchange contracts outstanding with a U.S. dollar equivalent notional value of $55.8 million and $55.5 million, respectively.
	The following table summarizes the fair value of our derivative financial instruments as of December 31, 2014 and 2013:
		Fair Value of Derivative Instruments
		Derivative Assets										Derivative Liabilities
	(in millions of dollars)	Balance Sheet		December 31, 2014				December 31, 2013				Balance Sheet		December 31, 2014				December 31, 2013
		Location										Location
	Derivatives designated as hedging instruments:
	Foreign exchange contracts	Other current assets		$	4.6			$	1.4			Other current liabilities		$	0.1			$	0.8
	Derivatives not designated as hedging instruments:
	Foreign exchange contracts	Other current assets		0.1				0.4				Other current liabilities		0.4				0.1
	Total derivatives			$	4.7			$	1.8					$	0.5			$	0.9
	The following tables summarizes the pre-tax effect of the Company’s derivative financial instruments on the Consolidated Statements of Income for the years ended December 31, 2014, 2013 and 2012:
		The Effect of Derivative Instruments in Cash Flow Hedging Relationships on the Consolidated Statements of Income for the Years Ended December 31,
		Amount of Gain (Loss) Recognized in OCI (Effective Portion)												Location of (Gain) Loss Reclassified from OCI to Income		Amount of (Gain) Loss
																Reclassified from AOCI to Income (Effective Portion)
	(in millions of dollars)	2014				2013				2012						2014				2013			2012
	Cash flow hedges:
	Foreign exchange contracts	$	6.9			$	3.7			$	(0.2	)		Cost of products sold		$	(3.5	)		$	(3.4	)	$	(1.9	)
		The Effect of Derivatives Not Designated as Hedging Instruments on the Consolidated Statements of Income
		Location of (Gain) Loss Recognized in		Amount of (Gain) Loss
		Income on Derivatives		Recognized in Income year ended December 31,
	(in millions of dollars)			2014				2013				2012
	Foreign exchange contracts	Other expense, net		$	1.3			$	(0.6	)		$	2.3

Fair_Value_Of_Financial_Instru

Fair Value Of Financial Instruments	12 Months Ended
	Dec. 31, 2014
Fair Value Disclosures [Abstract]
Fair Value Of Financial Instruments	Fair Value of Financial Instruments
	In establishing a fair value, there is a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The basis of the fair value measurement is categorized in three levels, in order of priority, as described below:
	Level 1	Unadjusted quoted prices in active markets for identical assets or liabilities
	Level 2	Unadjusted quoted prices in active markets for similar assets or liabilities, or
		Unadjusted quoted prices for identical or similar assets or liabilities in markets that are not active, or
		Inputs other than quoted prices that are observable for the asset or liability
	Level 3	Unobservable inputs for the asset or liability
	We utilize the best available information in measuring fair value. Financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement.
	We have determined that our financial assets and liabilities described in "Note 13. Derivative Financial Instruments" are Level 2 in the fair value hierarchy. The following table sets forth our financial assets and liabilities that were accounted for at fair value on a recurring basis as of December 31, 2014 and 2013:
	(in millions of dollars)	December 31, 2014		December 31, 2013
	Assets:
	Forward currency contracts	$	4.7	$	1.8
	Liabilities:
	Forward currency contracts	$	0.5	$	0.9
	Our forward currency contracts are included in "Other current assets" or "Other current liabilities" and mature within 12 months. The forward foreign currency exchange contracts are primarily valued based on the foreign currency spot and forward rates quoted by the banks or foreign currency dealers. As such, these derivative instruments are classified within Level 2.
	The fair values of cash and cash equivalents, notes payable to banks, accounts receivable and accounts payable approximate carrying amounts due principally to their short maturities. The carrying amount of total debt was $800.7 million and $920.9 million and the estimated fair value of total debt was $831.9 million and $912.2 million as of December 31, 2014 and 2013, respectively. The fair values are determined from quoted market prices, where available, and from investment bankers using current interest rates considering credit ratings and the remaining terms of maturity.

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income (Loss)	12 Months Ended
	Dec. 31, 2014
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss)
	Comprehensive income is defined as net income (loss) and other changes in stockholders’ equity from transactions and other events from sources other than stockholders. The components of, and changes in, accumulated other comprehensive income (loss) were as follows:
	(in millions of dollars)	Derivative								Unrecognized			Accumulated
		Financial				Foreign				Pension and Other			Other
		Instruments				Currency				Post-retirement			Comprehensive
						Adjustments				Benefit Costs			Income (Loss)
	Balance at December 31, 2012	$	0.1			$	(28.0	)		$	(128.2	)	$	(156.1	)
	Other comprehensive income (loss) before reclassifications, net of tax	2.6				(61.6		)		24.4			(34.6		)
	Amounts reclassified from accumulated other comprehensive income (loss), net of tax	(2.4		)		—				7.5			5.1
	Balance at December 31, 2013	0.3				(89.6		)		(96.3		)	(185.6		)
	Other comprehensive income (loss) before reclassifications, net of tax	4.9				(76.4		)		(37.1		)	(108.6		)
	Amounts reclassified from accumulated other comprehensive income (loss), net of tax	(2.5		)		—				4.1			1.6
	Balance at December 31, 2014	$	2.7			$	(166.0	)		$	(129.3	)	$	(292.6	)
	The reclassifications out of accumulated other comprehensive income (loss) for the year ended December 31, 2014 were as follows:
			Year Ended December 31,
	(in millions of dollars)		2014				2013
	Details about Accumulated Other Comprehensive Income Components		Amount Reclassified from Accumulated Other Comprehensive Income								Location on Income Statement
	Gain on cash flow hedges:
	Foreign exchange contracts		$	(3.5	)		$	(3.4	)		Cost of products sold
	Total before tax		(3.5		)		(3.4		)
	Tax benefit		1				1				Income tax expense (benefit)
	Net of tax		$	(2.5	)		$	(2.4	)
	Defined benefit plan items:
	Amortization of actuarial loss		$	6			$	11.4			-1
	Amortization of prior service cost		0.3				0.1				-1
	Total before tax		6.3				11.5
	Tax expense		(2.2		)		$	(4.0	)		Income tax expense (benefit)
	Net of tax		$	4.1			$	7.5
	Total reclassifications for the period, net of tax		$	1.6			$	5.1
	-1	This accumulated other comprehensive income component is included in the computation of net periodic benefit cost (income)for pension and post-retirement plans (See "Note 5. Pension and Other Retiree Benefits" for additional details).

Information_on_Business_Segmen

Information on Business Segments	12 Months Ended
	Dec. 31, 2014
Segment Reporting [Abstract]
Information on Business Segments	Information on Business Segments
	ACCO Brands is organized into three business segments: ACCO Brands North America, ACCO Brands International and Computer Products Group. Our three business segments are described below.
	ACCO Brands North America and ACCO Brands International
	ACCO Brands North America and ACCO Brands International manufacture, source and sell traditional office products, school supplies and calendar products. ACCO Brands North America comprises the U.S. and Canada, and ACCO Brands International comprises the rest of the world, primarily Northern Europe, Australia, Brazil and Mexico.
	Our office, school and calendar product lines use name brands such as: AT-A-GLANCE®, Day-Timer®, Five Star®, GBC®, Hilroy®, Marbig, Mead®, NOBO, Quartet®, Rexel, Swingline®, Tilibra®, Wilson Jones® and many others. Products and brands are not confined to one channel or product category and are sold based on end-user preference in each geographic location.
	The majority of our office products, such as stapling, binding and laminating equipment and related consumable supplies, shredders and whiteboards, are used by businesses. Most of these end-users purchase their products from our customers, which include traditional office resellers, wholesalers and other retailers, including on-line retailers. We also supply some of our products directly to large commercial and industrial end-users, and provide business machine maintenance and certain repair services. We also supply private label products within the office products sector.
	Our school products include notebooks, folders, decorative calendars, and stationery products. We distribute our school products primarily through mass merchandisers, and other retailers, such as grocery, drug and office superstores as well as on-line retailers. We also supply private label products within the school products sector.
	Our calendar products are sold throughout all channels where we sell office or school products, as well as directly to consumers both on-line and through direct mail.
	The customer base to which we sell our products is primarily made up of large global and regional resellers of our products including traditional office supply resellers, wholesalers and other retailers, including on-line retailers. Mass merchandisers and retail channels primarily sell to individual consumers but also to small businesses. We also sell to commercial contract dealers, wholesalers, distributors and independent dealers who primarily serve business end-users. Over half of our product sales by our customers are to business end-users, who generally seek premium products that have added value or ease-of-use features and a reputation for reliability, performance and professional appearance. Some of our binding and laminating equipment products are sold directly to high-volume end-users and commercial reprographic centers. We also sell calendar and computer products directly to consumers.
	Computer Products Group
	Our Computer Products Group designs, sources, distributes, markets and sells accessories for laptop and desktop computers and tablets. These accessories primarily include security products, input devices such as mice, laptop computer carrying cases, hubs, docking stations, power adapters, tablet accessories and charging racks and ergonomic devices. We sell these products mostly under the Kensington®, Microsaver® and ClickSafe® brand names, with the majority of revenue coming from the U.S. and Northern Europe. Our computer products are manufactured by third-party suppliers, principally in Asia, and distributed from our regional facilities. Our computer products are sold primarily to consumer electronics retailers, information technology value-added resellers, original equipment manufacturers, office products retailers, as well as directly to consumers on-line.
	Net sales by business segment for the years ended December 31, 2014, 2013 and 2012 were as follows:
	(in millions of dollars)	2014			2013			2012
	ACCO Brands North America	$	1,006.00		$	1,041.40		$	1,028.20
	ACCO Brands International	546.9			566.6			551.2
	Computer Products Group	136.3			157.1			179.1
	Net sales	$	1,689.20		$	1,765.10		$	1,758.50
	Operating income by business segment for the years ended December 31, 2014, 2013 and 2012 were as follows(a):
	(in millions of dollars)	2014			2013			2012
	ACCO Brands North America	$	140.7		$	98.2		$	86.2
	ACCO Brands International	62.9			66.5			62
	Computer Products Group	8.2			13.7			35.9
	Segment operating income	211.8			178.4			184.1
	Corporate	(38.2		)	(32.6		)	(44.8		)
	Operating income	173.6			145.8			139.3
	Interest expense	49.5			59			91.3
	Interest income	(5.6		)	(4.3		)	(2.0		)
	Equity in earnings of joint ventures	(8.1		)	(8.2		)	(6.9		)
	Other expense, net	0.8			7.6			61.3
	Income (loss) from continuing operations before income tax	$	137		$	91.7		$	(4.4	)
	(a)	Operating income as presented in the segment table above is defined as i) net sales; ii) less cost of products sold; iii) less advertising, selling, general and administrative expenses; iv) less amortization of intangibles; and v) less restructuring charges.
	The following table presents the measure of segment assets used by the Company’s chief operating decision maker.
		December 31,
	(in millions of dollars)	2014			2013
	ACCO Brands North America(b)	$	433.7		$	465.4
	ACCO Brands International(b)	429.7			464.1
	Computer Products Group(b)	62.4			88.1
	Total segment assets	925.8			1,017.60
	Unallocated assets	1,299.20			1,364.30
	Corporate(b)	1.4			1
	Total assets	$	2,226.40		$	2,382.90
	(b)	Represents total assets, excluding: goodwill and identifiable intangibles resulting from business acquisitions, intercompany balances, cash, deferred taxes, prepaid pension assets, prepaid debt issuance costs and joint ventures accounted for on an equity basis.
	As a supplement to the presentation of segment assets presented above, the table below presents segment assets, including the allocation of identifiable intangible assets and goodwill resulting from business combinations.
		December 31,
	(in millions of dollars)	2014			2013
	ACCO Brands North America(c)	$	1,272.40		$	1,332.00
	ACCO Brands International(c)	692.7			758.4
	Computer Products Group(c)	77			102.4
	Total segment assets	2,042.10			2,192.80
	Unallocated assets	182.9			189.1
	Corporate(c)	1.4			1
	Total assets	$	2,226.40		$	2,382.90
	(c)	Represents total assets, excluding: intercompany balances, cash, deferred taxes, prepaid pension assets, prepaid debt issuance costs and joint ventures accounted for on an equity basis.
	Property, plant and equipment, net by geographic region were as follows:
		December 31,
	(in millions of dollars)	2014			2013
	U.S.	$	122		$	134.4
	Brazil	49.3			54.7
	U.K.	34.1			30.5
	Australia	12			13.7
	Other countries	18.1			20
	Property, plant and equipment, net	$	235.5		$	253.3
	Net sales by geographic region for the years ended December 31, 2014, 2013 and 2012 were as follows(d):
	(in millions of dollars)	2014			2013			2012
U.S.	$	921		$	955.5		$	959.2
Brazil	154			157.2			118.9
Canada	150.6			159.7			160.8
Netherlands	130.2			130.2			45.9
Australia	108.5			119.8			133.4
U.K.	89.1			101.3			98
Mexico	58.8			58.9			59.2
Other countries	77			82.5			183.1
Net sales	$	1,689.20		$	1,765.10		$	1,758.50
(d)	Net sales are attributed to geographic areas based on the location of the selling company.
Top Customers
Net sales to our five largest customers totaled $706.0 million, $680.5 million and $716.2 million in the years ended December 31, 2014, 2013 and 2012, respectively. Net sales to Staples, our largest customer, were $224.1 million (13%), $229.5 million (13%) and $236.3 million (13%) in the years ended December 31, 2014, 2013 and 2012, respectively. Net sales to Office Depot, our second largest customer, were $190.9 million (11%) for the year ended December 31, 2014. Sales to no other customer exceeded 10% of net sales for any of the last three years.
A significant percentage of our sales are to customers engaged in the office products resale industry. Concentration of credit risk with respect to trade accounts receivable is partially mitigated because a large number of geographically diverse customers make up each operating company's domestic and international customer base, thus spreading the credit risk. As of December 31, 2014 and 2013, our top five trade account receivables totaled $144.2 million and $194.0 million, respectively.

Joint_Venture_Investments

Joint Venture Investments	12 Months Ended
	Dec. 31, 2014
Equity Method Investments and Joint Ventures [Abstract]
Joint Venture Investments	Joint Venture Investment
	Summarized below is aggregated financial information for the Company’s joint venture, which is accounted for under the equity method. Accordingly, we record our proportionate share of earnings or losses on the line entitled "Equity in earnings of joint ventures" in the Consolidated Statements of Income. Our share of the net assets of the joint venture is included within "Other non-current assets" in the Consolidated Balance Sheets.
		Year Ended December 31,
	(in millions of dollars)	2014		2013		2012
	Net sales	$	121.4	$	105.4	$	116.6
	Gross profit	48.2		44.8		47.9
	Operating income	23.6		23		24.7
	Net income	16.4		16.4		17.3
		December 31,
	(in millions of dollars)	2014		2013
	Current assets	$	83.4	$	71.8
	Non-current assets	47.3		32.5
	Current liabilities	40.7		32.1
	Non-current liabilities	22		4.9

Commitments_and_Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies
	Pending Litigation
	In connection with our May 1, 2012 acquisition of Mead C&OP we assumed all of the tax liabilities for the acquired foreign operations including Tilibra Produtos de Papelaria Ltda. ("Tilibra"). See "Note 11. Income Taxes - Income Tax Assessment" for details on tax assessments issued by the FRD against Tilibra, which challenged the tax deduction of goodwill from Tilibra's taxable income for the years 2007 through 2010.
	There are various other claims, lawsuits and pending actions against us incidental to our operations. It is the opinion of management that the ultimate resolution of these matters will not have a material adverse effect on our consolidated financial position, results of operations or cash flows. However, we can make no assurances that we will ultimately be successful in our defense of any of these matters.
	Lease Commitments
	Future minimum rental payments for all non-cancelable operating leases (reduced by minor amounts from subleases) as of December 31, 2014 were as follows:
	(in millions of dollars)
	2015	$	23
	2016	20
	2017	16.3
	2018	14
	2019	12.9
	Thereafter	35
	Total minimum rental payments	$	121.2
	Less minimum rentals to be received under non-cancelable subleases	5.3
		$	115.9
	Total rental expense reported in our Consolidated Statements of Income for all non-cancelable operating leases (reduced by minor amounts for subleases) amounted to $23.1 million, $25.3 million and $22.3 million for the years ended December 31, 2014, 2013 and 2012, respectively.
	Unconditional Purchase Commitments
	Future minimum payments under unconditional purchase commitments, primarily for inventory purchase commitments as of December 31, 2014 were as follows:
	(in millions of dollars)
	2015	$	74
	2016	10.7
	2017	10.5
	2018	2.4
	2019	—
	Thereafter	—
	Total unconditional purchase commitments	$	97.6
	Environmental
	We are subject to federal, state and local laws and regulations concerning the discharge of materials into the environment and the handling, disposal and clean-up of waste materials and otherwise relating to the protection of the environment. It is not possible to quantify with certainty the potential impact of actions regarding environmental matters, particularly remediation and other compliance efforts that we may undertake in the future. In the opinion of our management, compliance with the present environmental protection laws, before taking into account estimated recoveries from third parties, will not have a material adverse effect upon our capital expenditures, financial condition or results of operations.

Discontinued_Operations

Discontinued Operations	12 Months Ended
	Dec. 31, 2014
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	Discontinued Operations
	Included in discontinued operations are residual costs of our commercial print finishing business, which was sold in 2009. In association with ongoing legal disputes related to this business, we recorded expenses of $0.2 million and $2.0 million, during 2013 and 2012, respectively.
	The operating results and financial position of discontinued operations were as follows:
	(in millions, except per share data)	2014		2013			2012
	Operating Results:
	Loss on sale before income taxes	—		(0.3		)	(2.1		)
	Income tax benefit	—		(0.1		)	(0.5		)
	Loss from discontinued operations	$	—	$	(0.2	)	$	(1.6	)
	Per share:
	Basic loss from discontinued operations	$	—	$	—		$	(0.02	)
	Diluted loss from discontinued operations	$	—	$	—		$	(0.02	)
	Litigation-related accruals of $1.2 million for discontinued operations, which were included in the line "Other current liabilities" as of December 31, 2013 have been settled in 2014.

Quarterly_Financial_Informatio

Quarterly Financial Information (Unaudited)	12 Months Ended
	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Information (Unaudited)	Quarterly Financial Information (Unaudited)
	The following is an analysis of certain items in the Consolidated Statements of Income by quarter for 2014 and 2013:
	(in millions of dollars, except per share data)	1st Quarter			2nd Quarter		3rd Quarter		4th Quarter
	2014
	Net sales(1)	$	329.4		$	427.7	$	472.2	$	459.9
	Gross profit	88.5			131.2		153.3		156.9
	Operating income (loss)	(0.6		)	43.9		61.8		68.5
	Income (loss) from continuing operations	(7.8		)	21.3		34.2		43.9
	Loss from discontinued operations, net of income taxes	—			—		—		—
	Net income (loss)	$	(7.8	)	$	21.3	$	34.2	$	43.9
	Basic income (loss) per share:
	Income (loss) from continuing operations(2)	$	(0.07	)	$	0.19	$	0.3	$	0.39
	Loss from discontinued operations(2)	$	—		$	—	$	—	$	—
	Net income (loss)(2)	$	(0.07	)	$	0.19	$	0.3	$	0.39
	Diluted income (loss) per share:
	Income (loss) from continuing operations(2)	$	(0.07	)	$	0.18	$	0.29	$	0.38
	Loss from discontinued operations(2)	$	—		$	—	$	—	$	—
	Net income (loss)(2)	$	(0.07	)	$	0.18	$	0.29	$	0.38
	2013
	Net sales(1)	$	352		$	440.2	$	469.2	$	503.7
	Gross profit	97.2			138.3		142.3		170.1
	Operating income (loss)	(9.2		)	37.9		50.3		66.8
	Income (loss) from continuing operations	(8.9		)	9.5		26.4		50.3
	Loss from discontinued operations, net of income taxes	(0.1		)	—		—		(0.1		)
	Net income (loss)	$	(9.0	)	$	9.5	$	26.4	$	50.2
	Basic income (loss) per share:
	Income (loss) from continuing operations(2)	$	(0.08	)	$	0.08	$	0.23	$	0.44
	Loss from discontinued operations(2)	$	—		$	—	$	—	$	—
	Net income (loss)(2)	$	(0.08	)	$	0.08	$	0.23	$	0.44
	Diluted income (loss) per share:
	Income (loss) from continuing operations(2)	$	(0.08	)	$	0.08	$	0.23	$	0.43
	Loss from discontinued operations(2)	$	—		$	—	$	—	$	—
	Net income (loss)(2)	$	(0.08	)	$	0.08	$	0.23	$	0.43
	-1	Historically, our business has experienced higher sales in the third and fourth quarters of the calendar year. Two principal factors contribute to this seasonality: (1) the office products industry, its customers and ACCO Brands specifically are major suppliers of products related to the "back-to-school" season, which occurs principally from June through September for our North American business and from November through February for our Australian and Brazilian businesses; and (2) several products we sell lend themselves to calendar year-end purchase timing, including AT-A-GLANCE® and Day-Timer® planners, paper organization and storage products (including bindery) and Kensington computer accessories, which have higher sales in the fourth quarter driven by traditionally strong fourth-quarter sales of personal computers and tablets.
	-2	The sum of the quarterly earnings per share amounts may not equal the total for the year due to the effects of rounding and dilution as a result of issuing common shares and repurchasing of common shares during the year.

Condensed_Consolidating_Financ

Condensed Consolidating Financial Information	12 Months Ended
	Dec. 31, 2014
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Condensed Consolidating Financial Information	Condensed Consolidated Financial Information
	Certain of the Company’s 100% owned domestic subsidiaries are required to jointly and severally, fully and unconditionally guarantee the 6.75% Senior Unsecured Notes that are due in the year 2020. Rather than filing separate financial statements for each guarantor subsidiary with the Securities and Exchange Commission, the Company has elected to present the following condensed consolidating financial statements, which detail the results of operations for the years ended December 31, 2014, 2013 and 2012, cash flows for the years ended December 31, 2014, 2013 and 2012 and financial position as of December 31, 2014 and 2013 of the Company and its guarantor and non-guarantor subsidiaries (in each case carrying investments under the equity method), and the eliminations necessary to arrive at the reported amounts included in the condensed consolidated financial statements of the Company.
	Condensed Consolidating Balance Sheets
		December 31, 2014
	(in millions of dollars)	Parent			Guarantors			Non-Guarantors			Eliminations			Consolidated
	Assets
	Current assets:
	Cash and cash equivalents	$	9.7		$	0.1		$	43.4		$	—		$	53.2
	Accounts receivable, net	—			156.1			264.4			—			420.5
	Inventories	—			129.9			100			—			229.9
	Receivables from affiliates	4.8			302.7			68			(375.5		)	—
	Deferred income taxes	27.2			—			12.2			—			39.4
	Other current assets	1.4			15.1			19.3			—			35.8
	Total current assets	43.1			603.9			507.3			(375.5		)	778.8
	Property, plant and equipment, net	4.2			117.8			113.5			—			235.5
	Deferred income taxes	0.9			—			30.8			—			31.7
	Goodwill	—			330.9			214			—			544.9
	Identifiable intangibles, net	57.5			397.9			116			—			571.4
	Other non-current assets	15.2			1			47.9			—			64.1
	Investment in, long term receivable from affiliates	1,680.00			890.8			441			(3,011.8		)	—
	Total assets	$	1,800.90		$	2,342.30		$	1,470.50		$	(3,387.3	)	$	2,226.40
	Liabilities and Stockholders’ Equity
	Current liabilities:
	Notes payable	$	—		$	—		$	0.8		—			$	0.8
	Current portion of long-term debt	0.7			0.1			—			—			0.8
	Accounts payable	—			84.8			74.3			—			159.1
	Accrued compensation	3.3			20.1			13.2			—			36.6
	Accrued customer programs liabilities	—			60.1			51.7			—			111.8
	Accrued interest	6.5			—			—			—			6.5
	Other current liabilities	1.9			31			46.9			—			79.8
	Payables to affiliates	5.6			214.1			240.5			(460.2		)	—
	Total current liabilities	18			410.2			427.4			(460.2		)	395.4
	Long-term debt	799			—			—			—			799
	Long-term notes payable to affiliates	178.2			26.7			31.2			(236.1		)	—
	Deferred income taxes	120			—			52.2			—			172.2
	Pension and post-retirement benefit obligations	1.5			52.3			46.7			—			100.5
	Other non-current liabilities	3.2			19.9			55.2			—			78.3
	Total liabilities	1,119.90			509.1			612.7			(696.3		)	1,545.40
	Stockholders’ equity:
	Common stock	1.1			448			247			(695.0		)	1.1
	Treasury stock	(5.9		)	—			—			—			(5.9		)
	Paid-in capital	2,031.50			1,551.10			743			(2,294.1		)	2,031.50
	Accumulated other comprehensive loss	(292.6		)	(65.2		)	(183.0		)	248.2			(292.6		)
	(Accumulated deficit) retained earnings	(1,053.1		)	(100.7		)	50.8			49.9			(1,053.1		)
	Total stockholders’ equity	681			1,833.20			857.8			(2,691.0		)	681
	Total liabilities and stockholders’ equity	$	1,800.90		$	2,342.30		$	1,470.50		$	(3,387.3	)	$	2,226.40
	Condensed Consolidating Balance Sheets
		December 31, 2013
	(in millions of dollars)	Parent			Guarantors			Non-Guarantors			Eliminations			Consolidated
	Assets
	Current assets:
	Cash and cash equivalents	$	7		$	1		$	45.5		$	—		$	53.5
	Accounts receivable, net	—			177.3			294.6			—			471.9
	Inventories	—			124.8			129.9			—			254.7
	Receivables from affiliates	8.2			101.5			65			(174.7		)	—
	Deferred income taxes	20.9			—			12.6			—			33.5
	Other current assets	0.6			8.8			18.7			—			28.1
	Total current assets	36.7			413.4			566.3			(174.7		)	841.7
	Property, plant and equipment, net	4.1			130.3			118.9			—			253.3
	Deferred income taxes	—			—			37.3			—			37.3
	Goodwill	—			330.9			237.4			—			568.3
	Identifiable intangibles, net	57.6			415.4			134			—			607
	Other non-current assets	20			6.2			49.1			—			75.3
	Investment in, long term receivable from affiliates	1,818.20			868.4			441			(3,127.6		)	—
Total assets	$	1,936.60		$	2,164.60		$	1,584.00		$	(3,302.3	)	$	2,382.90
Liabilities and Stockholders’ Equity
Current liabilities:
Current portion of long-term debt	$	—		$	0.1		$	—		$	—		$	0.1
Accounts payable	—			81.4			96.5			—			177.9
Accrued compensation	4.6			12.3			15.1			—			32
Accrued customer programs liabilities	—			65.5			58.1			—			123.6
Accrued interest	7			—			—			—			7
Other current liabilities	3			39.1			62.4			—			104.5
Payables to affiliates	9.5			206.4			244			(459.9		)	—
Total current liabilities	24.1			404.8			476.1			(459.9		)	445.1
Long-term debt	920.7			0.1			—			—			920.8
Long-term notes payable to affiliates	178.3			26.7			35.2			(240.2		)	—
Deferred income taxes	109.2			—			59.9			—			169.1
Pension and post-retirement benefit obligations	1.5			24.2			36			—			61.7
Other non-current liabilities	0.5			22			61.4			—			83.9
Total liabilities	1,234.30			477.8			668.6			(700.1		)	1,680.60
Stockholders’ equity:
Common stock	1.1			448.1			267.4			(715.5		)	1.1
Treasury stock	(3.5		)	—			—			—			(3.5		)
Paid-in capital	2,035.00			1,551.20			743			(2,294.2		)	2,035.00
Accumulated other comprehensive loss	(185.6		)	(45.6		)	(99.7		)	145.3			(185.6		)
(Accumulated deficit) retained earnings	(1,144.7		)	(266.9		)	4.7			262.2			(1,144.7		)
Total stockholders’ equity	702.3			1,686.80			915.4			(2,602.2		)	702.3
Total liabilities and stockholders’ equity	$	1,936.60		$	2,164.60		$	1,584.00		$	(3,302.3	)	$	2,382.90
Condensed Consolidating Statement of Comprehensive Income
	Year Ended December 31, 2014
(in millions of dollars)	Parent			Guarantors			Non-			Eliminations			Consolidated
							Guarantors
Net sales	$	—		$	969.2		$	772		$	(52.0	)	$	1,689.20
Cost of products sold	—			673.4			537.9			(52.0		)	1,159.30
Gross profit	—			295.8			234.1			—			529.9
Advertising, selling, general and administrative expenses	45.4			157.1			126.1			—			328.6
Amortization of intangibles	0.1			17.7			4.4			—			22.2
Restructuring charges	—			4.6			0.9			—			5.5
Operating (loss) income	(45.5		)	116.4			102.7			—			173.6
(Income) expense from affiliates	(1.5		)	(20.7		)	22.2			—			—
Interest expense	49.9			—			(0.4		)	—			49.5
Interest income	—			(0.1		)	(5.5		)	—			(5.6		)
Equity in earnings of joint ventures	—			—			(8.1		)	—			(8.1		)
Other expense (income), net	0.4			(0.7		)	1.1			—			0.8
Income (loss) from continuing operations before income taxes and earnings of wholly owned subsidiaries	(94.3		)	137.9			93.4			—			137
Income tax expense	18.2			—			27.2			—			45.4
(Loss) income from continuing operations	(112.5		)	137.9			66.2			—			91.6
Loss from discontinued operations, net of income taxes	—			—			—			—			—
Income (loss) before earnings of wholly owned subsidiaries	(112.5		)	137.9			66.2			—			91.6
Earnings of wholly owned subsidiaries	204.1			62.7			—			(266.8		)	—
Net income	$	91.6		$	200.6		$	66.2		$	(266.8	)	$	91.6
Comprehensive (loss) income	$	(15.4	)	$	181		$	(17.1	)	$	(163.9	)	$	(15.4	)
Condensed Consolidating Statement of Comprehensive Income
	Year Ended December 31, 2013
(in millions of dollars)	Parent			Guarantors			Non-			Eliminations			Consolidated
							Guarantors
Net sales	$	—		$	971.2		$	814		$	(20.1	)	$	1,765.10
Cost of products sold	—			669.8			567.5			(20.1		)	1,217.20
Gross profit	—			301.4			246.5			—			547.9
Advertising, selling, general and administrative expenses	40.6			183.5			123.2			—			347.3
Amortization of intangibles	0.1			19.7			4.9			—			24.7
Restructuring charges	0.5			14.3			15.3			—			30.1
Operating income (loss)	(41.2		)	83.9			103.1			—			145.8
Expense (income) from affiliates	(1.5		)	(21.7		)	23.2			—			—
Interest expense	58.6			—			0.4			—			59
Interest income	—			(0.1		)	(4.2		)	—			(4.3		)
Equity in earnings of joint ventures	—			—			(8.2		)	—			(8.2		)
Other expense, net	4.8			0.8			2			—			7.6
Income (loss) from continuing operations before income taxes and earnings of wholly owned subsidiaries	(103.1		)	104.9			89.9			—			91.7
Income tax expense (benefit)	(1.5		)	—			15.9			—			14.4
Income (loss) from continuing operations	(101.6		)	104.9			74			—			77.3
Loss from discontinued operations, net of income taxes	—			(0.2		)	—			—			(0.2		)
Income (loss) before earnings of wholly owned subsidiaries	(101.6		)	104.7			74			—			77.1
Earnings of wholly owned subsidiaries	178.7			72.6			—			(251.3		)	—
Net income	$	77.1		$	177.3		$	74		$	(251.3	)	$	77.1
Comprehensive income	$	47.6		$	200.6		$	26.5		$	(227.1	)	$	47.6
Condensed Consolidating Statement of Comprehensive Income
	Year Ended December 31, 2012
(in millions of dollars)	Parent			Guarantors			Non-			Eliminations			Consolidated
							Guarantors
Net sales	$	—		$	976.5		$	803.4		$	(21.4	)	$	1,758.50
Cost of products sold	—			684.2			558.6			(21.4		)	1,221.40
Gross profit	—			292.3			244.8			—			537.1
Advertising, selling, general and administrative expenses	46.6			176.4			130.6			—			353.6
Amortization of intangibles	0.1			15.3			4.5			—			19.9
Restructuring charges	—			20.2			4.1			—			24.3
Operating income (loss)	(46.7		)	80.4			105.6			—			139.3
Expense (income) from affiliates	(1.3		)	(24.6		)	25.9			—			—
Interest expense	61.5			28.3			1.5			—			91.3
Interest income	(0.1		)	(0.1		)	(1.8		)	—			(2.0		)
Equity in (earnings) losses of joint ventures	—			1.9			(8.8		)	—			(6.9		)
Other expense (income), net	59.7			3.3			(1.7		)	—			61.3
(Loss) income from continuing operations before income taxes and earnings of wholly owned subsidiaries	(166.5		)	71.6			90.5			—			(4.4		)
Income tax benefit	(121.1		)	(0.2		)	(0.1		)	—			(121.4		)
Income (loss) from continuing operations	(45.4		)	71.8			90.6			—			117
(Loss) income from discontinued operations, net of income taxes	0.5			(1.4		)	(0.7		)	—			(1.6		)
Income (loss) before earnings of wholly owned subsidiaries	(44.9		)	70.4			89.9			—			115.4
Earnings of wholly owned subsidiaries	160.3			79			—			(239.3		)	—
Net income	$	115.4		$	149.4		$	89.9		$	(239.3	)	$	115.4
Comprehensive income	$	90.3		$	146.3		$	67.5		$	(213.8	)	$	90.3
Condensed Consolidating Statement of Cash Flows
	Year Ended December 31, 2014
(in millions of dollars)	Parent			Guarantors			Non-Guarantors			Consolidated
Net cash provided (used) by operating activities	$	(77.9	)	$	182.3		$	67.3		$	171.7
Investing activities:
Additions to property, plant and equipment	(0.2		)	(10.6		)	(18.8		)	(29.6		)
Payments for (proceeds from) interest in affiliates	—			20.5			(20.5		)	—
Proceeds from the disposition of assets	—			3.6			0.2			3.8
Net cash (used) provided by investing activities	(0.2		)	13.5			(39.1		)	(25.8		)
Financing activities:
Intercompany financing	188.3			(181.3		)	(7.0		)	—
Net dividends	35.4			(15.3		)	(20.1		)	—
Repayments of long-term debt	(121.0		)	(0.1		)	—			(121.1		)
Borrowings of notes payable, net	—			—			1			1
Payments for debt issuance costs	(0.3		)	—			—			(0.3		)
Repurchases of common stock	(19.4		)	—			—			(19.4		)
Payments related to tax withholding for share-based compensation	(2.5		)	—			—			(2.5		)
Proceeds from the exercise of stock options	0.3			—			—			0.3
Net cash (used) provided by financing activities	80.8			(196.7		)	(26.1		)	(142.0		)
Effect of foreign exchange rate changes on cash and cash equivalents	—			—			(4.2		)	(4.2		)
Net (decrease) increase in cash and cash equivalents	2.7			(0.9		)	(2.1		)	(0.3		)
Cash and cash equivalents:
Beginning of the period	7			1			45.5			53.5
End of the period	$	9.7		$	0.1		$	43.4		$	53.2
Condensed Consolidating Statement of Cash Flows
	Year Ended December 31, 2013
(in millions of dollars)	Parent			Guarantors			Non-Guarantors			Consolidated
Net cash provided (used) by operating activities	$	(81.7	)	$	186.5		$	89.7		$	194.5
Investing activities:
Additions to property, plant and equipment	—			(21.2		)	(15.4		)	(36.6		)
Payments for (proceeds from) interest in affiliates	—			55.6			(55.6		)	—
Payments related to the sale of discontinued operations	—			(1.5		)	—			(1.5		)
Proceeds from the disposition of assets	—			—			6.1			6.1
Cost of acquisition, net of cash acquired	—			(1.3		)	—			(1.3		)
Net cash (used) provided by investing activities	—			31.6			(64.9		)	(33.3		)
Financing activities:
Intercompany financing	143.8			(168.2		)	24.4			—
Net dividends	65.7			(45.9		)	(19.8		)	—
Proceeds from long-term borrowings	530			—			—			530
Repayments of long-term debt	(658.1		)	—			(21.4		)	(679.5		)
(Repayments) borrowings of notes payable, net	0.5			—			(1.2		)	(0.7		)
Payments for debt issuance costs	(4.3		)	—			—			(4.3		)
Payments related to tax withholding for share-based compensation	(1.0		)	—			—			(1.0		)
Net cash (used) provided by financing activities	76.6			(214.1		)	(18.0		)	(155.5		)
Effect of foreign exchange rate changes on cash and cash equivalents	—			—			(2.2		)	(2.2		)
Net increase (decrease) in cash and cash equivalents	(5.1		)	4			4.6			3.5
Cash and cash equivalents:
Beginning of the period	12.1			(3.0		)	40.9			50
End of the period	$	7		$	1		$	45.5		$	53.5
Condensed Consolidating Statement of Cash Flows
	Year Ended December 31,2012
(in millions of dollars)	Parent			Guarantors			Non-Guarantors			Consolidated
Net cash (used) provided by operating activities:	$	(156.0	)	$	137.5		$	11		$	(7.5	)
Investing activities:
Additions to property, plant and equipment	—			(22.4		)	(7.9		)	(30.3		)
Proceeds (payments) related to the sale of discontinued operations	—			2.1			(0.6		)	1.5
Proceeds from the disposition of assets	—			—			3.1			3.1
Cost of acquisitions, net of cash acquired	(429.5		)	—			32			(397.5		)
Net cash (used) provided by investing activities	(429.5		)	(20.3		)	26.6			(423.2		)
Financing activities:
Intercompany financing	775.6			(777.4		)	1.8			—
Net dividends	53.3			27.3			(80.6		)	—
Proceeds from long-term borrowings	545			690			35			1,270.00
Repayments of long-term debt	(816.2		)	(42.8		)	(13.0		)	(872.0		)
Borrowings of short-term debt, net	—			—			1.2			1.2
Payments for debt issuance costs	(21.5		)	(16.1		)	(0.9		)	(38.5		)
Payments related to tax withholding for share-based compensation	(0.8		)	—			—			(0.8		)
Proceeds from the exercise of stock options	0.2			—			—			0.2
Net cash provided (used) by financing activities	535.6			(119.0		)	(56.5		)	360.1
Effect of foreign exchange rate changes on cash	—			—			(0.6		)	(0.6		)
Net decrease in cash and cash equivalents	(49.9		)	(1.8		)	(19.5		)	(71.2		)
Cash and cash equivalents:
Beginning of the period	62			(1.2		)	60.4			121.2
End of the period	$	12.1		$	(3.0	)	$	40.9		$	50

Valuation_and_Qualifying_Accou

Valuation and Qualifying Accounts and Reserves	12 Months Ended
	Dec. 31, 2014
Valuation and Qualifying Accounts [Abstract]
Valuation and Qualifying Accounts and Reserves	Allowances for Doubtful Accounts
	Changes in the allowances for doubtful accounts were as follows:
		Year Ended December 31,
	(in millions of dollars)	2014			2013			2012
	Balance at beginning of year	$	6.1		$	6.5		$	5.1
	Additions charged to expense	1			1.5			2.2
	Deductions - write offs	(1.3		)	(1.6		)	(3.0		)
	Mead C&OP acquisition	—			—			2.1
	Foreign exchange changes	(0.3		)	(0.3		)	0.1
	Balance at end of year	$	5.5		$	6.1		$	6.5
	Allowances for Sales Returns and Discounts
	Changes in the allowances for sales returns and discounts were as follows:
		Year Ended December 31,
	(in millions of dollars)	2014			2013			2012
	Balance at beginning of year	$	12.9		$	10.6		$	7.7
	Additions charged to expense	37.4			41.3			41
	Deductions - returns	(38.4		)	(39.1		)	(41.6		)
	Mead C&OP acquisition	—			—			2.8
	Foreign exchange changes	0.1			0.1			0.7
	Balance at end of year	$	12		$	12.9		$	10.6
	Allowances for Cash Discounts
	Changes in the allowances for cash discounts were as follows:
		Year Ended December 31,
	(in millions of dollars)	2014			2013			2012
	Balance at beginning of year	$	2.2		$	2.2		$	1.1
	Additions charged to expense	15.5			16			16.4
	Deductions - discounts taken	(15.6		)	(16.2		)	(16.0		)
	Mead C&OP acquisition	—			—			0.6
	Foreign exchange changes	(0.1		)	0.2			0.1
	Balance at end of year	$	2		$	2.2		$	2.2
	Warranty Reserves
	Changes in the reserve for warranty claims were as follows:
		Year Ended December 31,
	(in millions of dollars)	2014			2013			2012
	Balance at beginning of year	$	2.2		$	2.8		$	2.7
	Provision for warranties issued	2			2			3.3
	Deductions - settlements made (in cash or in kind)	(2.4		)	(2.6		)	(3.2		)
	Balance at end of year	$	1.8		$	2.2		$	2.8
	Income Tax Valuation Allowance
	Changes in the deferred tax valuation allowances were as follows:
		Year Ended December 31,
	(in millions of dollars)	2014			2013			2012
	Balance at beginning of year	$	33		$	55.4		$	204.3
	Charges (credits) to expense	0.2			(11.6		)	(145.1		)
	Credited to other accounts	(8.7		)	(10.5		)	(4.3		)
	Foreign exchange changes	(0.6		)	(0.3		)	0.5
	Balance at end of year	$	23.9		$	33		$	55.4

Significant_Accounting_Policie1

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
Use of Estimates	Use of Estimates
	The preparation of financial statements in conformity with accounting principles generally accepted in the U.S ("GAAP") requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates.
Cash and Cash Equivalents	Cash and Cash Equivalents
	Highly liquid investments with an original maturity of three months or less are included in cash and cash equivalents.
Allowances for Doubtful Accounts, Discounts and Returns	Allowances for Doubtful Accounts, Discounts and Returns
	Trade receivables are recorded at the stated amount, less allowances for discounts, doubtful accounts and returns. The allowance for doubtful accounts represents estimated uncollectible receivables associated with potential customer defaults on contractual obligations, usually due to customers’ potential insolvency. The allowance includes amounts for certain customers where a risk of default has been specifically identified. In addition, the allowance includes a provision for customer defaults on a general formula basis when it is determined the risk of some default is probable and estimable, but cannot yet be associated with specific customers. The assessment of the likelihood of customer defaults is based on various factors, including the length of time the receivables are past due, historical experience and existing economic conditions.
	The allowance for sales returns represents estimated uncollectible receivables associated with the potential return of products previously sold to customers, and is recorded at the time that the sales are recognized. The allowance includes a general provision for product returns based on historical trends. In addition, the allowance includes a reserve for currently authorized customer returns that are considered to be abnormal in comparison to the historical basis.
Inventories	Inventories
	Inventories are priced at the lower of cost (principally first-in, first-out with minor amounts at average) or market. A reserve is established to adjust the cost of inventory to its net realizable value. Inventory reserves are recorded for obsolete or slow-moving inventory based on assumptions about future demand and marketability of products, the impact of new product introductions and specific identification of items, such as product discontinuance or engineering/material changes. These estimates could vary significantly, either favorably or unfavorably, from actual requirements if future economic conditions, customer inventory levels or competitive conditions differ from expectations.
Property, Plant and Equipment	Property, Plant and Equipment
	Property, plant and equipment are carried at cost. Depreciation is provided, principally on a straight-line basis, over the estimated useful lives of the assets. Gains or losses resulting from dispositions are included in operating income. Betterments and renewals, which improve and extend the life of an asset are capitalized; maintenance and repair costs are expensed. Purchased computer software is capitalized and amortized over the software’s useful life. The following table shows estimated useful lives of property, plant and equipment:
	Buildings	40 to 50 years
	Leasehold improvements	Lesser of lease term or the life of the asset
	Machinery, equipment and furniture	3 to 10 years
	Computer software	5 to 7 years
Long-Lived Assets	Long-Lived Assets
	We test long-lived assets for impairment whenever events or changes in circumstances indicate that the assets’ carrying amount may not be recoverable from its undiscounted cash flow. When such events occur, we compare the sum of the undiscounted cash flow expected to result from the use and eventual disposition of the asset or asset group to the carrying amount of a long-lived asset or asset group. The cash flows are based on our best estimate at the time of future cash flow, derived from the most recent business projections. If this comparison indicates that there is an impairment, the amount of the impairment is typically calculated using discounted expected future cash flow. The discount rate applied to these cash flows is based on our weighted average cost of capital, computed by selecting market rates at the valuation dates for debt and equity that are reflective of the risks associated with an investment in our industry as estimated by using comparable publicly traded companies.
Intangible Assets	Intangible Assets
	Intangible assets are comprised primarily of indefinite-lived and amortizable intangible assets acquired and arising from the application of purchase accounting. Indefinite-lived intangible assets are not amortized, but are evaluated annually to determine whether the indefinite useful life is appropriate. In addition, amortizable intangible assets other than goodwill are amortized over their useful lives. Certain of our trade names have been assigned an indefinite life as we currently anticipate that these trade names will contribute cash flows to ACCO Brands indefinitely.
	We review indefinite-lived intangibles for impairment annually, normally in the second quarter, and whenever market or business events indicate there may be a potential adverse impact on a particular intangible. We consider the implications of both external factors (e.g., market growth, pricing, competition, and technology) and internal factors (e.g., product costs, margins, support expenses, and capital investment) and their potential impact on cash flows for each business in both the near and long term, as well as their impact on any identifiable intangible asset associated with the business. Based on recent business results, consideration of significant external and internal factors, and the resulting business projections, indefinite-lived intangible assets are reviewed to determine whether they are likely to remain indefinite-lived, or whether a finite life is more appropriate. In addition, based on events in the period and future expectations, management considers whether the potential for impairment exists. Finite lived intangibles are amortized over 10, 15, 23 or 30 years.
	During 2013, we adopted ASU No. 2012-02, Intangibles-Goodwill and Other (Topic 350): Testing Indefinite-Lived Intangible Assets for Impairment. ASU No. 2012-02 permits entities to first assess qualitative factors to determine if it is more likely than not that the fair value of a indefinite-lived intangible unit is less than its carrying amount as a basis for determining whether further impairment testing of indefinite-lived intangible assets is necessary.
	We performed our annual assessment in the second quarter of 2014 and concluded that no impairment exists. However, due to the recent acquisition of Mead C&OP, the fair values of certain indefinite-lived trade names are not substantially above their carrying values.
Goodwill	Goodwill
	Goodwill has been recorded on our balance sheet and represents the excess of the cost of the acquisitions when compared to the fair value of the net assets acquired. The authoritative guidance on goodwill and other intangible assets requires that goodwill be tested for impairment at a reporting unit level. We have determined that our reporting units are ACCO Brands North America, ACCO Brands International and Computer Products Group segments. We test goodwill for impairment annually and whenever events or circumstances make it more likely than not that an impairment may have occurred. During 2012, we adopted ASU No. 2011-08, Intangibles - Goodwill and Other (Topic 350): Testing Goodwill for Impairment. ASU No. 2011-08 permits entities to first assess qualitative factors to determine if it is more likely than not that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test included in GAAP. Entities are not required to calculate the fair value of a reporting unit unless they determine that it is more likely than not that the fair value is less than the carrying amount. We performed our annual assessment in the second quarter of 2014 and concluded that no impairment exists. We performed our assessment using the two-step fair value quantitative impairment test in ASC 350 to our reporting units in 2014 due to the Merger and the decline in sales. When applying a fair-value-based test, if it is determined to be required, the fair value of a reporting unit is compared to its carrying value. If the fair value of a reporting unit exceeds the carrying value of the net assets assigned to a reporting unit, goodwill is considered not impaired and no further testing is required. If the carrying value of the net assets assigned to a reporting unit exceeds the fair value of a reporting unit, the second step of the impairment test is performed in order to determine the implied fair value of a reporting unit’s goodwill. Determining the implied fair value of goodwill requires valuation of a reporting unit’s tangible and intangible assets and liabilities in a manner similar to the allocation of purchase price in a business combination. If the carrying value of a reporting unit’s goodwill exceeds its implied fair value, goodwill is deemed impaired and is written down to the extent of the difference.
Employee Benefit Plans	Employee Benefit Plans
	We provide a range of benefits to our employees and retired employees, including pension, post-retirement, post-employment and health care benefits. We record annual amounts relating to these plans based on calculations, which include various actuarial assumptions, including discount rates, assumed rates of return on plan assets, compensation increases, turnover rates and health care cost trend rates. We review our actuarial assumptions on an annual basis and make modifications to the assumptions based on current rates and trends when it is deemed appropriate to do so. The effect of the modifications are generally recorded and amortized over future periods.
Income Taxes	Income Taxes
	Deferred tax liabilities or assets are established for temporary differences between financial and tax reporting bases and are subsequently adjusted to reflect changes in tax rates expected to be in effect when the temporary differences reverse. A valuation allowance is recorded to reduce deferred tax assets to an amount that is more likely than not to be realized. Facts and circumstances may change and cause us to revise the conclusions on our ability to realize certain net operating losses and other deferred tax attributes.
	The amount of income taxes that we pay is subject to ongoing audits by federal, state and foreign tax authorities. Our estimate of the potential outcome of any uncertain tax position is subject to management’s assessment of relevant risks, facts and circumstances existing at that time. We believe that we have adequately provided for reasonably foreseeable outcomes related to these matters. However, our future results may include favorable or unfavorable adjustments to our estimated tax liabilities in the period the assessments are revised or resolved.
Revenue Recognition	Revenue Recognition
	We recognize revenue from product sales when earned, net of applicable provisions for discounts, returns and allowances. We consider revenue to be realized or realizable and earned when all of the following criteria are met: title and risk of loss have passed to the customer, persuasive evidence of an arrangement exists, delivery has occurred, the price is fixed or determinable and collectability is reasonably assured. We also provide for our estimate of potential uncollectible receivables at the time of revenue recognition.
Cost of Products Sold	Cost of Products Sold
	Cost of products sold includes all manufacturing, product sourcing and distribution costs, including depreciation related to assets used in the manufacturing, procurement and distribution process, allocation of certain information technology costs supporting those processes, inbound and outbound freight, shipping and handling costs, purchasing costs associated with materials and packaging used in the production processes.
Advertising, Selling, General and Administrative Expenses	Advertising, Selling, General and Administrative Expenses
	Advertising, selling, general and administrative expenses ("SG&A") include advertising, marketing, selling (including commissions), research and development, customer service, depreciation related to assets outside the manufacturing and distribution processes and all other general and administrative expenses outside the manufacturing and distribution functions (e.g., finance, human resources, information technology, corporate expenses, etc.).
Advertising Costs	Advertising Costs
	Advertising costs amounted to $130.8 million, $131.0 million and $125.7 million for the years ended December 31, 2014, 2013 and 2012, respectively and are principally expensed as incurred.
Customer Program Costs	Customer Program Costs
	Customer program costs include, but are not limited to, sales rebates which are generally tied to achievement of certain sales volume levels, in-store promotional allowances, shared media and customer catalog allowances and other cooperative advertising arrangements, and freight allowance programs. We generally recognize customer program costs as a deduction to gross sales at the time that the associated revenue is recognized. Certain customer incentives that do not directly relate to future revenues are expensed when initiated.
	In addition, accrued customer program liabilities principally include, but are not limited to, sales volume rebates, promotional allowances, shared media and customer catalog allowances and other cooperative advertising arrangements, and freight allowances as discussed above.
Shipping and Handling	Shipping and Handling
	We reflect all amounts billed to customers for shipping and handling in net sales and the costs incurred from shipping and handling product (including costs to ship and move product from the seller’s place of business to the buyer’s place of business, as well as costs to store, move and prepare products for shipment) in cost of products sold.
Warranty Reserves	Warranty Reserves
	We offer our customers various warranty terms based on the type of product that is sold. Estimated future obligations related to products sold under these warranty terms are provided by charges to cost of products sold in the period in which the related revenue is recognized.
Research and Development	Research and Development
	Research and development expenses, which amounted to $20.2 million, $22.5 million and $20.8 million for the years ended December 31, 2014, 2013 and 2012, respectively, are classified as general and administrative expenses and are charged to expense as incurred.
Stock-Based Compensation	Stock-Based Compensation
	Our primary types of share-based compensation consist of stock options, restricted stock unit awards, and performance stock unit awards. Stock-based compensation cost is measured at the grant date, based on the fair value of the award, and is recognized as expense over the requisite service period. Where awards are made with non-substantive vesting periods (for example, where a portion of the award vests upon retirement eligibility), we estimate and recognize expense based on the period from the grant date to the date on which the employee is retirement eligible.
Foreign Currency Translation	Foreign Currency Translation
	Foreign currency balance sheet accounts are translated into U.S. dollars at the rates of exchange at the balance sheet date. Income and expenses are translated at the average rates of exchange in effect during the period. The related translation adjustments are made directly to a separate component of accumulated other comprehensive income (loss) in stockholders’ equity. Some transactions are made in currencies different from an entity’s functional currency. Gains and losses on these foreign currency transactions are included in income as they occur.
Derivatives Financial Instruments	Derivative Financial Instruments
	We recognize all derivatives as either assets or liabilities on the balance sheet and measures those instruments at fair value. If the derivative is designated as a fair value hedge and is effective, the changes in the fair value of the derivative and of the hedged item attributable to the hedged risk are recognized in earnings in the same period. If the derivative is designated as a cash flow hedge, the effective portions of changes in the fair value of the derivative are recorded in other comprehensive income (loss) and are recognized in the income statement when the hedged item affects earnings. Ineffective portions of changes in the fair value of cash flow hedges are recognized in earnings.
	Certain forecasted transactions, assets and liabilities are exposed to foreign currency risk. We continually monitor our foreign currency exposures in order to maximize the overall effectiveness of our foreign currency hedge positions. Principal currencies hedged include the U.S. dollar, Euro, Australian dollar, Canadian dollar and British pound.
Recent Accounting Pronouncements	Recent Accounting Pronouncements
	There were no new accounting pronouncements that the Company adopted in 2014 that had a material impact on the Company’s consolidated financial statements.
	In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers ("ASU 2014-09"). The standard provides companies with a single model for use in accounting for revenue arising from contracts with customers and supersedes current revenue recognition guidance, including industry-specific revenue guidance. The core principle of the model is to recognize revenue when control of the goods or services transfers to the customer, as opposed to recognizing revenue when the risks and rewards transfer to the customer under the existing revenue guidance. ASU 2014-09 is effective for annual reporting periods beginning after December 15, 2016. Early adoption is not permitted. The guidance permits companies to either apply the requirements retrospectively to all prior periods presented, or apply the requirements in the year of adoption, through a cumulative adjustment. The Company is in the process of evaluating the impact of adoption of ASU 2014-09 on its consolidated financial statements.

Significant_Accounting_Policie2

Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
Property, Plant and Equipment	The following table shows estimated useful lives of property, plant and equipment:
	Buildings		40 to 50 years
	Leasehold improvements		Lesser of lease term or the life of the asset
	Machinery, equipment and furniture		3 to 10 years
	Computer software		5 to 7 years
	The components of net property, plant and equipment were as follows:
		December 31,
	(in millions of dollars)	2014			2013
	Land and improvements	$	21.5		$	23.3
	Buildings and improvements to leaseholds	129			133.3
	Machinery and equipment	374.2			352.4
	Construction in progress	23			39.5
		547.7			548.5
	Less: accumulated depreciation	(312.2		)	(295.2		)
	Property, plant and equipment, net(1)	$	235.5		$	253.3

Acquisitions_Tables

Acquisitions (Tables)	12 Months Ended
	Dec. 31, 2014
Business Combinations [Abstract]
Calculation of Consideration Given for Mead C&OP Acquisition	The calculation of consideration given for Mead C&OP was finalized during the fourth quarter of 2012 and is described in the following table:
	(in millions, except per share price)	At May 1, 2012
	Calculated consideration for Mead C&OP:
	Outstanding shares of ACCO Brands common stock(1)	56
	Multiplier needed to calculate shares to be issued(2)	1.02020202
	Number of shares issued to MWV shareholders	57.1
	Closing price per share of ACCO Brands common stock(3)	$	10.55
	Value of common shares issued	$	602.3
	Plus:
	Dividend paid to MWV	460
	Less:
	Working capital adjustment(4)	(30.5		)
	Consideration given for Mead C&OP	$	1,031.80
	-1	Represents the number of shares of the Company's common stock as of May 1, 2012.
	-2	Represents MWV shareholders' negotiated ownership percentage in ACCO Brands of 50.5% divided by the 49.5% that was owned by ACCO Brands shareholders upon completion of the Merger.
	-3	Represents the closing price per share of the Company's stock as of April 30, 2012.
	-4	Represents the difference between the target net working capital and the closing net working capital as of April 30, 2012.
Purchase Price Allocation to the Fair Value of the Assets Acquired and Liabilities Assumed	The following table presents the allocation of the purchase price to the fair values of the assets acquired and liabilities assumed at the date of acquisition:
	(in millions of dollars)	At May 1, 2012
	Calculation of Goodwill:
	Consideration given for Mead C&OP	$	1,031.80
	Cash acquired	(32.0		)
	Net purchase price	$	999.8
	Plus fair value of liabilities assumed:
	Accounts payable and accrued liabilities	103.9
	Current and non-current deferred tax liabilities	209.6
	Other non-current liabilities	72.9
	Fair value of liabilities assumed	$	386.4
	Less fair value of assets acquired:
	Accounts receivable	73.3
	Inventory	143.5
	Property, plant and equipment	136.6
	Identifiable intangibles	543.2
	Other assets	24.3
	Fair value of assets acquired	$	920.9
	Goodwill	$	465.3

Longterm_Debt_and_Shortterm_Bo1

Long-term Debt and Short-term Borrowings (Tables)	12 Months Ended
	Dec. 31, 2014
Debt Disclosure [Abstract]
Notes Payable and Long-Term Debt	Notes payable and long-term debt, listed in order of their security interests, consisted of the following as of December 31, 2014 and 2013:
	(in millions of dollars)	2014				2013
	U.S. Dollar Senior Secured Term Loan A, due May 2018 (floating interest rate of 2.24% at December 31, 2014 and 2.49% at December 31, 2013)	$	299			$	420
	Senior Unsecured Notes, due April 2020 (fixed interest rate of 6.75%)	500				500
	Other borrowings	1.7				0.9
	Total debt	800.7				920.9
	Less: current portion	(1.7		)		(0.1		)
	Total long-term debt	$	799			$	920.8
Schedule of Credit Spread Based on Consolidated Leverage Ratio	The credit spread applied to outstanding Eurodollar loans and Base Rate loans is based on our Leverage Ratio as calculated in the most recently submitted compliance certificate. The credit spreads are as follows:
	Consolidated		Eurodollar Credit Spread		Base Rate Credit Spread
	Leverage Ratio
	> 4.00 to 1.00		2.50%		1.50%
	≤ 4.00 to 1.00 and > 3.50 to 1.00		2.25%		1.25%
	≤ 3.50 to 1.00 and > 2.50 to 1.00		2.00%		1.00%
	≤ 2.50 to 1.00		1.75%		0.75%
Schedule of Financial Covenant Ratio Levels	Under the 2013 Restated Credit Agreement, the Company is required to meet certain financial tests, including a maximum Leverage Ratio as determined by reference to the following ratios:
	Period		Maximum Consolidated Leverage Ratio(1)
	July 1, 2014 through June 30, 2015		4.00:1.00
	July 1, 2015 through June 30, 2017		3.75:1.00
	July 1, 2017 and thereafter		3.50:1.00
	-1	The Leverage Ratio is computed by dividing the Company's net funded indebtedness by the cumulative four-quarter-trailing EBITDA, which excludes transaction costs, restructuring and other charges up to certain limits as well as other adjustments defined in the 2013 Restated Credit Agreement.

Pension_and_Other_Retiree_Bene1

Pension and Other Retiree Benefits (Tables)	12 Months Ended
	Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Schedule of Amounts Recognized in Balance Sheet Net Funded Status	The following table sets forth our defined benefit pension and post-retirement plans funded status and the amounts recognized in our Consolidated Balance Sheets:
		Pension Benefits																Post-retirement
		U.S.								International
	(in millions of dollars)	2014				2013				2014				2013				2014				2013
	Change in projected benefit obligation (PBO)
	Projected benefit obligation at beginning of year	$	177.4			$	191.7			$	371.4			$	361			$	13.3			$	16
	Service cost	2.1				2				0.8				1.6				0.2				0.2
	Interest cost	8.6				7.9				15.7				14.7				0.5				0.6
	Actuarial loss (gain)	34.2				(19.0		)		48.3				1.9				(0.3		)		(2.8		)
	Participants’ contributions	—				—				0.2				0.3				0.1				0.1
	Benefits paid	(9.4		)		(8.9		)		(16.6		)		(13.9		)		(0.8		)		(0.7		)
	Curtailment gain	—				—				—				(1.0		)		—				—
	Plan amendments	—				3.7				(0.2		)		—				(0.4		)		—
	Foreign exchange rate changes	—				—				(27.8		)		6.8				(0.4		)		(0.1		)
	Projected benefit obligation at end of year	212.9				177.4				391.8				371.4				12.2				13.3
	Change in plan assets
	Fair value of plan assets at beginning of year	156.3				135.4				342.8				311.9				—				—
	Actual return on plan assets	10.8				21.7				43.8				32.2				—				—
	Employer contributions	6.2				8.1				5.5				6				0.7				0.6
	Participants’ contributions	—				—				0.2				0.3				0.1				0.1
	Benefits paid	(9.4		)		(8.9		)		(16.6		)		(13.9		)		(0.8		)		(0.7		)
	Foreign exchange rate changes	—				—				(24.5		)		6.3				—				—
	Fair value of plan assets at end of year	163.9				156.3				351.2				342.8				—				—
	Funded status (Fair value of plan assets less PBO)	$	(49.0	)		$	(21.1	)		$	(40.6	)		$	(28.6	)		$	(12.2	)		$	(13.3	)
	Amounts recognized in the Consolidated Balance Sheets consist of:
	Other non-current assets	$	—			$	—			$	—			$	0.3			$	—			$	—
	Other current liabilities	—				—				0.5				0.6				0.8				1
	Pension and post-retirement benefit obligations(1)	49				21.1				40.1				28.3				11.4				12.3
	Components of accumulated other comprehensive income, net of tax:
	Unrecognized actuarial loss (gain)	51.9				33.3				78.1				63.6				(1.1		)		(2.9		)
	Unrecognized prior service cost (credit)	2.4				2.7				(0.4		)		(0.3		)		(1.5		)		(0.1		)
	-1	Pension and post-retirement obligations of $100.5 million as of December 31, 2014, increased from $61.7 million as of December 31, 2013, due to lower discount rates compared to prior year assumptions and the adoption of new mortality tables for the U.S. and Canadian plans.
Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized over Next Fiscal Year	Of the amounts included within accumulated other comprehensive income (loss), we expect to recognize the following pre-tax amounts as components of net periodic benefit cost (income) for the year ended December 31, 2015:
		Pension Benefits								Post-retirement
	(in millions of dollars)	U.S.				International
	Actuarial loss (gain)	$	2.1			$	2.5			$	(0.2	)
	Prior service cost (credit)	0.4				—				(0.2		)
		$	2.5			$	2.5			$	(0.4	)
Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets	The following table sets out information for pension plans with an accumulated benefit obligation in excess of plan assets:
		U.S.								International
	(in millions of dollars)	2014				2013				2014				2013
	Projected benefit obligation	$	212.9			$	177.4			$	371			$	331.2
	Accumulated benefit obligation	209.1				173				360.9				321.7
	Fair value of plan assets	163.9				156.3				331.1				302.8
Components of Net Periodic Benefit Cost for Pension and Post-Retirement Plans	The components of net periodic benefit cost (income) for pension and post-retirement plans for the years ended December 31, 2014, 2013, and 2012, respectively, were as follows:
		Pension Benefits																							Post-retirement
		U.S.												International
	(in millions of dollars)	2014				2013				2012				2014				2013				2012			2014			2013			2012
	Service cost	$	2.1			$	2			$	1.2			$	0.8			$	1.6			$	2.1		$	0.2		$	0.2		$	0.2
	Interest cost	8.6				7.9				8.4				15.7				14.7				14.3			0.5			0.6			0.6
	Expected return on plan assets	(12.0		)		(10.4		)		(10.4		)		(22.8		)		(20.6		)		(16.2		)	—			—			—
	Amortization of net loss (gain)	5.1				9.6				6.2				1.9				2.4				2.2			(1.1		)	(0.6		)	(1.6		)
	Amortization of prior service cost (credit)	0.4				0.1				—				—				—				0.4			—			—			—
	Curtailment gain	—				—				—				—				(1.0		)		—			—			—			—
	Settlement loss (gain)	—				—				0.7				—				—				—			(0.1		)	—			—
	Net periodic benefit cost (income)	$	4.2			$	9.2			$	6.1			$	(4.4	)		$	(2.9	)		$	2.8		$	(0.5	)	$	0.2		$	(0.8	)
Schedule of Defined Benefit Plan Amounts Recognized in Other Comprehensive Income (Loss)	Other changes in plan assets and benefit obligations that were recognized in other comprehensive income (loss) during the years ended December 31, 2014, 2013, and 2012 were as follows:
		Pension Benefits																							Post-retirement
		U.S.												International
	(in millions of dollars)	2014				2013				2012				2014				2013				2012			2014			2013			2012
	Current year actuarial loss (gain)	$	35.4			$	(30.2	)		$	9.6			$	27.3			$	(10.0	)		$	11.4		$	(0.3	)	$	(2.8	)	$	0.1
	Amortization of actuarial (loss) gain	(5.1		)		(9.6		)		(6.2		)		(1.9		)		(2.4		)		(2.2		)	1.1			0.6			1.6
	Current year prior service cost (credit)	—				3.7				0.8				(0.2		)		—				(0.3		)	(0.3		)	—			—
	Amortization of prior service cost	(0.4		)		(0.1		)		—				—				—				(0.4		)	—			—			—
	Foreign exchange rate changes	—				—				—				(6.8		)		2.1				4.1			0.1			—			(0.1		)
	Total recognized in other comprehensive income (loss)	$	29.9			$	(36.2	)		$	4.2			$	18.4			$	(10.3	)		$	12.6		$	0.6		$	(2.2	)	$	1.6
	Total recognized in net periodic benefit cost (credit) and other comprehensive income (loss)	$	34.1			$	(27.0	)		$	10.3			$	14			$	(13.2	)		$	15.4		$	0.1		$	(2.0	)	$	0.8
Schedule of Assumptions Used	The weighted average assumptions used to determine benefit obligations for the years ended December 31, 2014, 2013, and 2012 were as follows:
		Pension Benefits																		Post-retirement
		U.S.									International
		2014			2013			2012			2014			2013			2012			2014			2013		2012
	Discount rate	4.2	%		5	%		4.2	%		3.4	%		4.3	%		4.3	%		3.7	%		4.4	%	4	%
	Rate of compensation increase	N/A			N/A			N/A			3	%		3.3	%		4	%		—			—		—
	The weighted average assumptions used to determine net periodic benefit cost (income) for the years ended December 31, 2014, 2013, and 2012 were as follows:
		Pension Benefits																		Post-retirement
		U.S.									International
		2014			2013			2012			2014			2013			2012			2014			2013		2012
	Discount rate	5	%		4.2	%		5	%		4.3	%		4.3	%		4.7	%		4.4	%		4	%	4.5	%
	Expected long-term rate of return	8.2	%		8.2	%		8.2	%		6.8	%		6.8	%		6.2	%		—			—		—
	Rate of compensation increase	N/A			N/A			N/A			3.3	%		4	%		3.6	%		—			—		—
	The weighted average health care cost trend rates used to determine post-retirement benefit obligations and net periodic benefit cost as of December 31, 2014, 2013, and 2012 were as follows:
		Post-retirement Benefits
		2014			2013			2012
	Health care cost trend rate assumed for next year	8	%		8	%		7	%
	Rate that the cost trend rate is assumed to decline (the ultimate trend rate)	5	%		5	%		5	%
	Year that the rate reaches the ultimate trend rate	2023			2020			2020
Schedule of Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates	Assumed health care cost trend rates may have a significant effect on the amounts reported for the health care plans. A one-percentage-point change in assumed health care cost trend rates would have the following effects:
		1-Percentage-				1-Percentage-
	(in millions of dollars)	Point Increase				Point Decrease
	Increase (decrease) on total of service and interest cost	$	0.2			$	(0.1	)
	Increase (decrease) on post-retirement benefit obligation	1.3				(1.1		)
Schedule of Allocation of Plan Assets	Our pension plan weighted average asset allocations as of December 31, 2014 and 2013 were as follows:
			2014						2013
			U.S.			International			U.S.			International
	Asset category
	Equity securities		62	%		45	%		62	%		48	%
	Fixed income		31			38			31			36
	Real estate		—			3			—			3
	Other(1)		7			14			7			13
	Total		100	%		100	%		100	%		100	%
	-1	Insurance contracts, multi-strategy hedge funds and cash and cash equivalents for certain of our plans.
Schedule of Expected Benefit Payments	The following table presents estimated future benefit payments to participants for the next ten fiscal years:
		Pension				Post-retirement
	(in millions of dollars)	Benefits				Benefits
	2015	$	23.7			$	0.8
	2016	$	24.3			$	0.8
	2017	$	25			$	0.8
	2018	$	25.9			$	0.8
	2019	$	26.4			$	0.8
	Years 2020 — 2024	$	137.5			$	3.6
U.S.
Defined Benefit Plan Disclosure [Line Items]
Schedule of Allocation of Plan Assets	U.S. Pension Plan Assets
	The fair value measurements of our U.S. pension plan assets by asset category as of December 31, 2014 were as follows:
	(in millions of dollars)	Quoted Prices				Significant				Significant				Fair Value
		in Active				Other				Unobservable				as of
		Markets for				Observable				Inputs				December 31,
		Identical				Inputs				(Level 3)				2014
		Assets				(Level 2)
		(Level 1)
	Common stocks	$	8.3			$	—			$	—			$	8.3
	Mutual funds	93.2				—				—				93.2
	Common collective trust funds	—				8.9				—				8.9
	Government debt securities	—				2.2				—				2.2
	Corporate debt securities	—				16.7				—				16.7
	Asset-backed securities	—				9.8				—				9.8
	Multi-strategy hedge funds	—				9.5				—				9.5
	Government mortgage-backed securities	—				8				—				8
	Collateralized mortgage obligations, mortgage backed securities, and other	—				7.3				—				7.3
	Total	$	101.5			$	62.4			$	—			$	163.9
	The fair value measurements of our U.S. pension plan assets by asset category as of December 31, 2013 were as follows:
	(in millions of dollars)	Quoted Prices				Significant				Significant				Fair Value
		in Active				Other				Unobservable				as of
		Markets for				Observable				Inputs				December 31,
		Identical				Inputs				(Level 3)				2013
		Assets				(Level 2)
		(Level 1)
	Common stocks	$	9.4			$	—			$	—			$	9.4
	Mutual funds	87.8				—				—				87.8
	Common collective trust funds	—				7.5				—				7.5
	Government debt securities	—				6.2				—				6.2
	Corporate debt securities	—				14.9				—				14.9
	Asset-backed securities	—				9.7				—				9.7
	Multi-strategy hedge funds	—				7.8				—				7.8
	Government mortgage-backed securities	—				7.5				—				7.5
	Collateralized mortgage obligations, mortgage backed securities, and other	—				5.5				—				5.5
	Total	$	97.2			$	59.1			$	—			$	156.3
International
Defined Benefit Plan Disclosure [Line Items]
Schedule of Allocation of Plan Assets	International Pension Plans Assets
	The fair value measurements of our international pension plans assets by asset category as of December 31, 2014 were as follows:
	(in millions of dollars)	Quoted Prices				Significant				Significant				Fair Value
		in Active				Other				Unobservable				as of
		Markets for				Observable				Inputs				December 31,
		Identical				Inputs				(Level 3)				2014
		Assets				(Level 2)
		(Level 1)
	Cash and cash equivalents	$	6.1			$	—			$	—			$	6.1
	Equity securities	156.7				—				—				156.7
	Corporate debt securities	—				118.6				—				118.6
	Multi-strategy hedge funds	—				25.1				—				25.1
	Insurance contracts	—				18.4				—				18.4
	Other debt securities	—				12.1				—				12.1
	Real estate	—				9.7				0.9				10.6
	Government debt securities	—				3.6				—				3.6
	Total	$	162.8			$	187.5			$	0.9			$	351.2
	The fair value measurements of our international pension plans assets by asset category as of December 31, 2013 were as follows:
	(in millions of dollars)	Quoted Prices				Significant				Significant				Fair Value
		in Active				Other				Unobservable				as of
		Markets for				Observable				Inputs				December 31,
		Identical				Inputs				(Level 3)				2013
		Assets				(Level 2)
		(Level 1)
	Cash and cash equivalents	$	2.2			$	—			$	—			$	2.2
	Equity securities	167.7				—				—				167.7
	Corporate debt securities	—				110				—				110
	Multi-strategy hedge funds	—				25.9				—				25.9
	Insurance contracts	—				13.6				—				13.6
	Other debt securities	—				10.6				—				10.6
	Real estate	—				9				1				10
	Government debt securities	—				2.8				—				2.8
	Total	$	169.9			$	171.9			$	1			$	342.8

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs	The following table summarizes the impact of all stock-based compensation expense on our Consolidated Statements of Income for the years ended December 31, 2014, 2013 and 2012.
	(in millions of dollars)	2014				2013				2012
	Advertising, selling, general and administrative expense	$	15.7			$	16.4			$	9.2
	Income (loss) from continuing operations before income tax	(15.7		)		(16.4		)		(9.2		)
	Income tax expense (benefit)	(5.7		)		(5.9		)		(3.3		)
	Net income (loss)	$	(10.0	)		$	(10.5	)		$	(5.9	)
Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan	Stock-based compensation expense by award type for the years ended December 31, 2014, 2013 and 2012 was as follows:
	(in millions of dollars)	2014				2013				2012
	Stock option compensation expense	$	3.7			$	3			$	1.8
	SSAR compensation expense	—				—				0.1
	RSU compensation expense	6.6				5.5				3.9
	PSU compensation expense	5.4				7.9				3.4
	Total stock-based compensation expense	$	15.7			$	16.4			$	9.2
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions	The fair value of each option grant is estimated on the date of grant using the Black-Scholes option-pricing model using the weighted average assumptions as outlined in the following table:
		Year Ended December 31,
		2014					2013					2012
	Weighted average expected lives	4.5			years		4.5			years		4.5		years
	Weighted average risk-free interest rate	1.33			%		0.75			%		0.75		%
	Weighted average expected volatility	52.2			%		55.3			%		55.7		%
	Expected dividend yield	0			%		0			%		0		%
	Weighted average grant date fair value	$	2.69				$	3.43				$	5.41
Summary of changes in stock options SSARs	A summary of the changes in stock options/SSARs outstanding under our stock compensation plans during the year ended December 31, 2014 are presented below:
		Number			Weighted				Weighted  Average		Aggregate
		Outstanding			Average				Remaining		Intrinsic
					Exercise				Contractual Term		Value
					Price
	Outstanding at December 31, 2013	4,806,475			$	8.3
	Granted	1,630,631			$	6.14
	Exercised	(593,731	)		$	1.35
	Lapsed	(869,989	)		$	19.18
	Outstanding at December 31, 2014	4,973,386			$	7.02			4.2 years		$	13	million
	Options/SSARs vested or expected to vest	4,852,670			$	7.03			4.2 years		$	12.7	million
	Exercisable shares at December 31, 2014	2,427,221			$	7.03			2.6 years		$	7.3	million
Summary of Changes in RSUs Outstanding	A summary of the changes in the RSUs outstanding under our equity compensation plans during 2014 are presented below:
		Stock			Weighted
		Units			Average
					Grant
					Date Fair
					Value
	Outstanding at December 31, 2013	2,021,123			$	8.95
	Granted	881,554			$	6.12
	Vested and distributed	(321,697	)		$	8.45
	Vested and deferred distributed	(43,428	)		$	8.29
	Forfeited	(106,869	)		$	8.61
	Outstanding at December 31, 2014	2,430,683			$	8.02
	Vested and deferred at December 31, 2014(1)	175,504			$	7.98
	-1	Included in outstanding at December 31, 2014. Vested and deferred RSUs are primarily related to deferred compensation for non-employee directors.
Summary of Changes in PSUs Outstanding	A summary of the changes in the PSUs outstanding under our equity compensation plans during 2014 are presented below:
		Stock			Weighted
		Units			Average
					Grant
					Date Fair
					Value
	Outstanding at December 31, 2013	2,294,792			$	7.94
	Granted	1,316,867			$	6.14
	Vested	(496,926	)		$	8.91
	Forfeited and cancelled	(136,411	)		$	7.04
	Other - decrease due to performance of PSU's	(141,160	)		$	6.39
	Outstanding at December 31, 2014	2,837,162			$	7.37

Inventories_Tables

Inventories (Tables)	12 Months Ended
	Dec. 31, 2014
Inventory Disclosure [Abstract]
Components of Inventory	Inventories are stated at the lower of cost or market value. The components of inventories were as follows:
		December 31,
	(in millions of dollars)	2014		2013
	Raw materials	$	36.7	$	36.1
	Work in process	2		2.4
	Finished goods	191.2		216.2
	Total inventories	$	229.9	$	254.7

Property_Plant_and_Equipment_T

Property, Plant and Equipment (Tables)	12 Months Ended
	Dec. 31, 2014
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	The following table shows estimated useful lives of property, plant and equipment:
	Buildings		40 to 50 years
	Leasehold improvements		Lesser of lease term or the life of the asset
	Machinery, equipment and furniture		3 to 10 years
	Computer software		5 to 7 years
	The components of net property, plant and equipment were as follows:
		December 31,
	(in millions of dollars)	2014			2013
	Land and improvements	$	21.5		$	23.3
	Buildings and improvements to leaseholds	129			133.3
	Machinery and equipment	374.2			352.4
	Construction in progress	23			39.5
		547.7			548.5
	Less: accumulated depreciation	(312.2		)	(295.2		)
	Property, plant and equipment, net(1)	$	235.5		$	253.3

Goodwill_and_Identifiable_Inta1

Goodwill and Identifiable Intangibles (Tables)	12 Months Ended
	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Changes in Net Carrying Amount of Goodwill by Segment	Changes in the net carrying amount of goodwill by segment were as follows:
		(in millions of dollars)	ACCO				ACCO				Computer			Total
			Brands				Brands				Products
			North America				International				Group
		Balance at December 31, 2012	$	396.3			$	186.3			$	6.8		$	589.4
		Mead C&OP acquisition	1.4				0.5				—			1.9
		Translation	(4.6		)		(18.4		)		—			(23.0		)
		Balance at December 31, 2013	393.1				168.4				6.8			568.3
		Translation	(5.5		)		(17.9		)		—			(23.4		)
		Balance at December 31, 2014	$	387.6			$	150.5			$	6.8		$	544.9
		Goodwill	$	518.5			$	234.7			$	6.8		$	760
		Accumulated impairment losses	(130.9		)		(84.2		)		—			(215.1		)
		Balance at December 31, 2014	$	387.6			$	150.5			$	6.8		$	544.9
Gross Carrying Value and Accumulated Amortization by Class of Identifiable Intangible Assets	The gross carrying value and accumulated amortization by class of identifiable intangible assets as of December 31, 2014 and 2013 were as follows:
		31-Dec-14											December 31, 2013
	(in millions of dollars)	Gross				Accumulated				Net			Gross				Accumulated				Net
		Carrying				Amortization				Book			Carrying				Amortization				Book
		Amounts								Value			Amounts								Value
	Indefinite-lived intangible assets:
	Trade names	$	499.4			$	(44.5	)	(1)	$	454.9		$	510.5			$	(44.5	)	(1)	$	466
	Amortizable intangible assets:
	Trade names	127.7				(55.5		)		72.2			131.3				(47.5		)		83.8
	Customer and contractual relationships	100.4				(57.2		)		43.2			102.7				(46.4		)		56.3
	Patents/proprietary technology	10.2				(9.1		)		1.1			10.3				(9.4		)		0.9
	Subtotal	238.3				(121.8		)		116.5			244.3				(103.3		)		141
	Total identifiable intangibles	$	737.7			$	(166.3	)		$	571.4		$	754.8			$	(147.8	)		$	607
	-1	Accumulated amortization prior to the adoption of authoritative guidance on goodwill and other intangible assets, at which time further amortization ceased.
Estimated Amortization Expense for Future Periods	Estimated amortization expense for amortizable intangible assets for the next five years is as follows:
	(in millions of dollars)	2015				2016				2017			2018				2019
	Estimated amortization expense	$	19.8			$	17.4			$	14.2		$	12			$	9.9

Restructuring_Tables

Restructuring (Tables)	12 Months Ended
	Dec. 31, 2014
Restructuring and Related Activities [Abstract]
Summary of Activity in Restructuring Accounts	A summary of the activity in the restructuring accounts and a reconciliation of the liability for the year ended December 31, 2014 was as follows:
	(in millions of dollars)	Balance at December 31, 2013		Provision			Cash			Non-cash			Balance at December 31, 2014
							Expenditures			Items/
										Currency Change
	Employee termination costs	$	19.1	$	4.3		$	(15.3	)	$	(0.3	)	$	7.8
	Termination of lease agreements	1.4		0.5			(1.5		)	0.2			0.6
	Asset impairments/net loss on disposal of assets resulting from restructuring activities	—		0.6			—			(0.6		)	—
	Other	—		0.1			(0.1		)	—			—
	Total restructuring liability	$	20.5	$	5.5		$	(16.9	)	$	(0.7	)	$	8.4
	Management expects the $7.8 million employee termination costs balance to be substantially paid within the next 12 months. Cash payments associated with lease termination costs of $0.6 million are also expected to be paid within the next 12 months.
	The Company's East Texas, Pennsylvania manufacturing and distribution facility was sold during the second quarter of 2014 and generated net cash proceeds of $3.2 million. An immaterial loss was recognized on the sale.
	A summary of the activity in the restructuring accounts and a reconciliation of the liability for the year ended December 31, 2013 was as follows:
	(in millions of dollars)	Balance at December 31, 2012		Provision			Cash			Non-cash			Balance at December 31, 2013
							Expenditures			Items/
										Currency Change
	Employee termination costs	$	15.2	26.4			(22.5		)	—			$	19.1
	Termination of lease agreements	0.2		1.9			(0.7		)	—			1.4
	Asset impairments/net loss on disposal of assets resulting from restructuring activities	—		1.2			0.5			(1.7		)	—
	Other	—		0.6			(0.6		)	—			—
	Total restructuring liability	$	15.4	$	30.1		$	(23.3	)	$	(1.7	)	$	20.5
	Not included in the restructuring table above is a $2.5 million net gain on the sale of the Company's Ireland distribution facility. The sale, which occurred during the second quarter of 2013, generated net cash proceeds of $3.8 million. The gain on sale was recognized in the Consolidated Statements of Income in SG&A.
	A summary of the activity in the restructuring accounts and a reconciliation of the liability for the year ended December 31, 2012 was as follows:
	(in millions of dollars)	Balance at December 31, 2011		Provision/Income			Cash			Non-cash			Balance at December 31, 2012
							Expenditures			Items/
										Currency Change
	Employee termination costs	0.3		24			(9.2		)	0.1			$	15.2
	Termination of lease agreements	0.7		(0.1		)	(0.4		)	—			0.2
	Asset impairments/net loss on disposal of assets resulting from restructuring activities	0.2		0.3			(0.3		)	(0.2		)	—
	Other	—		0.1			(0.1		)	—			—
	Total restructuring liability	$	1.2	$	24.3		$	(10.0	)	$	(0.1	)	$	15.4
	Not included in the restructuring table above is a $0.1 million net gain on the sale of a manufacturing facility and certain assets in the U.K. The sale, which occurred during the second quarter of 2012, generated net cash proceeds of $2.7 million. The gain on sale was recognized in the Consolidated Statements of Income in SG&A.

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Schedule of Income before Income Tax, Domestic and Foreign	The components of income (loss) before income taxes from continuing operations were as follows:
	(in millions of dollars)	2014			2013			2012
	Domestic operations	$	43.5		$	1.8		$	(94.9	)
	Foreign operations	93.5			89.9			90.5
	Total	$	137		$	91.7		$	(4.4	)
Schedule of Effective Income Tax Rate Reconciliation	The reconciliation of income taxes computed at the U.S. federal statutory income tax rate of 35% to our effective income tax rate for continuing operations was as follows:
	(in millions of dollars)	2014			2013			2012
	Income tax at U.S. statutory rate of 35%	$	47.9		$	32.1		$	(1.5	)
	State, local and other tax, net of federal benefit	2.1			(1.4		)	(0.6		)
	U.S. effect of foreign dividends and earnings	7.4			7.5			23.7
	Unrealized foreign currency loss on intercompany debt	(3.0		)	(3.5		)	(7.7		)
	Foreign income taxed at a lower effective rate	(8.6		)	(6.4		)	(7.2		)
	Expiration of tax credits	11.7			—			—
	Decrease in valuation allowance	(11.5		)	(11.6		)	(145.1		)
	U.S. effect of capital gain	—			—			11
	Correction of deferred tax error	—			(3.1		)	0.8
	Change in prior year tax estimates and other	(0.6		)	0.8			5.2
	Income taxes as reported	$	45.4		$	14.4		$	(121.4	)
	Effective tax rate	33.1		%	15.7		%	NM
Schedule of Components of Income Tax Expense (Benefit)	The components of the income tax expense (benefit) from continuing operations were as follows:
	(in millions of dollars)	2014			2013			2012
	Current expense
	Federal and other	$	1.6		$	0.8		$	6
	Foreign	23.2			25.3			27.1
	Total current income tax expense	24.8			26.1			33.1
	Deferred expense (benefit)
	Federal and other	15.4			(2.8		)	(129.5		)
	Foreign	5.2			(8.9		)	(25.0		)
	Total deferred income tax expense (benefit)	20.6			(11.7		)	(154.5		)
	Total income tax expense (benefit)	$	45.4		$	14.4		$	(121.4	)
Schedule of Deferred Tax Assets and Liabilities	The components of deferred tax assets (liabilities) were as follows:
	(in millions of dollars)	2014			2013(1)
	Deferred tax assets
	Compensation and benefits	$	20.4		$	23.8
	Pension	32			19.1
	Inventory	7.1			2.6
	Other reserves	19.8			20.3
	Accounts receivable	7.6			7.4
	Foreign tax credit carryforwards	11.9			20.5
	Net operating loss carryforwards	87.5			114.6
	Unrealized foreign currency loss on intercompany debt	3.2			0.1
	Other	8.8			6.9
	Gross deferred income tax assets	198.3			215.3
	Valuation allowance	(23.9		)	(33.0		)
	Net deferred tax assets	174.4			182.3
	Deferred tax liabilities
	Depreciation	(19.1		)	(21.1		)
	Identifiable intangibles	(256.6		)	(259.5		)
	Gross deferred tax liabilities	(275.7		)	(280.6		)
	Net deferred tax liabilities	$	(101.3	)	$	(98.3	)
	(1) Certain adjustments to the classifications of deferred tax balances at December 31, 2013 were made to conform to current year classifications. The adjustments do not impact the total net deferred tax liability.
Schedule of Unrecognized Tax Benefits Roll Forward	A reconciliation of the beginning and ending amount of unrecognized tax benefits were as follows:
	(in millions of dollars)	2014			2013			2012
	Balance at beginning of year	$	52.1		$	56.3		$	5.5
	Additions for tax positions of prior years	3.5			2.4			2
	Reductions for tax positions of prior years	(4.2		)	—			(1.5		)
	Settlements	—			(0.1		)	—
	Mead C&OP acquisition	—			—			50.3
	Foreign exchange changes	(5.5		)	(6.5		)	—
	Balance at end of year	$	45.9		$	52.1		$	56.3

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2014
Earnings Per Share [Abstract]
Schedule of Weighted Average Number of Shares	Our calculation of diluted earnings per common share assumes that any common shares outstanding were increased by shares that would be issued upon exercise of those stock units for which the average market price for the period exceeds the exercise price; less, the shares that could have been purchased by us with the related proceeds, including compensation expense measured but not yet recognized, net of tax.
	(in millions)	2014	2013	2012
	Weighted-average number of common shares outstanding — basic	113.7	113.5	94.1
	Stock options	0.1	—	0.1
	Stock-settled stock appreciation rights	0.6	0.9	0.9
	Restricted stock units	1.9	1.3	1
	Adjusted weighted-average shares and assumed conversions — diluted	116.3	115.7	96.1

Derivative_Financial_Instrumen1

Derivative Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	The following table summarizes the fair value of our derivative financial instruments as of December 31, 2014 and 2013:
		Fair Value of Derivative Instruments
		Derivative Assets										Derivative Liabilities
	(in millions of dollars)	Balance Sheet		December 31, 2014				December 31, 2013				Balance Sheet		December 31, 2014				December 31, 2013
		Location										Location
	Derivatives designated as hedging instruments:
	Foreign exchange contracts	Other current assets		$	4.6			$	1.4			Other current liabilities		$	0.1			$	0.8
	Derivatives not designated as hedging instruments:
	Foreign exchange contracts	Other current assets		0.1				0.4				Other current liabilities		0.4				0.1
	Total derivatives			$	4.7			$	1.8					$	0.5			$	0.9
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance	The following tables summarizes the pre-tax effect of the Company’s derivative financial instruments on the Consolidated Statements of Income for the years ended December 31, 2014, 2013 and 2012:
		The Effect of Derivative Instruments in Cash Flow Hedging Relationships on the Consolidated Statements of Income for the Years Ended December 31,
		Amount of Gain (Loss) Recognized in OCI (Effective Portion)												Location of (Gain) Loss Reclassified from OCI to Income		Amount of (Gain) Loss
																Reclassified from AOCI to Income (Effective Portion)
	(in millions of dollars)	2014				2013				2012						2014				2013			2012
	Cash flow hedges:
	Foreign exchange contracts	$	6.9			$	3.7			$	(0.2	)		Cost of products sold		$	(3.5	)		$	(3.4	)	$	(1.9	)
		The Effect of Derivatives Not Designated as Hedging Instruments on the Consolidated Statements of Income
		Location of (Gain) Loss Recognized in		Amount of (Gain) Loss
		Income on Derivatives		Recognized in Income year ended December 31,
	(in millions of dollars)			2014				2013				2012
	Foreign exchange contracts	Other expense, net		$	1.3			$	(0.6	)		$	2.3

Fair_Value_Of_Financial_Instru1

Fair Value Of Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2014
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The following table sets forth our financial assets and liabilities that were accounted for at fair value on a recurring basis as of December 31, 2014 and 2013:
	(in millions of dollars)	December 31, 2014		December 31, 2013
	Assets:
	Forward currency contracts	$	4.7	$	1.8
	Liabilities:
	Forward currency contracts	$	0.5	$	0.9

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income (Loss) (Tables)	12 Months Ended
	Dec. 31, 2014
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)	The components of, and changes in, accumulated other comprehensive income (loss) were as follows:
	(in millions of dollars)	Derivative								Unrecognized			Accumulated
		Financial				Foreign				Pension and Other			Other
		Instruments				Currency				Post-retirement			Comprehensive
						Adjustments				Benefit Costs			Income (Loss)
	Balance at December 31, 2012	$	0.1			$	(28.0	)		$	(128.2	)	$	(156.1	)
	Other comprehensive income (loss) before reclassifications, net of tax	2.6				(61.6		)		24.4			(34.6		)
	Amounts reclassified from accumulated other comprehensive income (loss), net of tax	(2.4		)		—				7.5			5.1
	Balance at December 31, 2013	0.3				(89.6		)		(96.3		)	(185.6		)
	Other comprehensive income (loss) before reclassifications, net of tax	4.9				(76.4		)		(37.1		)	(108.6		)
	Amounts reclassified from accumulated other comprehensive income (loss), net of tax	(2.5		)		—				4.1			1.6
	Balance at December 31, 2014	$	2.7			$	(166.0	)		$	(129.3	)	$	(292.6	)
Schedule of Reclassifications Out of Accumulated Other Comprehensive Income (Loss)	The reclassifications out of accumulated other comprehensive income (loss) for the year ended December 31, 2014 were as follows:
			Year Ended December 31,
	(in millions of dollars)		2014				2013
	Details about Accumulated Other Comprehensive Income Components		Amount Reclassified from Accumulated Other Comprehensive Income								Location on Income Statement
	Gain on cash flow hedges:
	Foreign exchange contracts		$	(3.5	)		$	(3.4	)		Cost of products sold
	Total before tax		(3.5		)		(3.4		)
	Tax benefit		1				1				Income tax expense (benefit)
	Net of tax		$	(2.5	)		$	(2.4	)
	Defined benefit plan items:
	Amortization of actuarial loss		$	6			$	11.4			-1
	Amortization of prior service cost		0.3				0.1				-1
	Total before tax		6.3				11.5
	Tax expense		(2.2		)		$	(4.0	)		Income tax expense (benefit)
	Net of tax		$	4.1			$	7.5
	Total reclassifications for the period, net of tax		$	1.6			$	5.1
	-1	This accumulated other comprehensive income component is included in the computation of net periodic benefit cost (income)for pension and post-retirement plans (See "Note 5. Pension and Other Retiree Benefits" for additional details).

Information_on_Business_Segmen1

Information on Business Segments (Tables)	12 Months Ended
	Dec. 31, 2014
Segment Reporting [Abstract]
Schedule of Net Sales by Business Segment	Net sales by business segment for the years ended December 31, 2014, 2013 and 2012 were as follows:
	(in millions of dollars)	2014			2013			2012
	ACCO Brands North America	$	1,006.00		$	1,041.40		$	1,028.20
	ACCO Brands International	546.9			566.6			551.2
	Computer Products Group	136.3			157.1			179.1
	Net sales	$	1,689.20		$	1,765.10		$	1,758.50
Schedule of Operating Income by Business Segment	Operating income by business segment for the years ended December 31, 2014, 2013 and 2012 were as follows(a):
	(in millions of dollars)	2014			2013			2012
	ACCO Brands North America	$	140.7		$	98.2		$	86.2
	ACCO Brands International	62.9			66.5			62
	Computer Products Group	8.2			13.7			35.9
	Segment operating income	211.8			178.4			184.1
	Corporate	(38.2		)	(32.6		)	(44.8		)
	Operating income	173.6			145.8			139.3
	Interest expense	49.5			59			91.3
	Interest income	(5.6		)	(4.3		)	(2.0		)
	Equity in earnings of joint ventures	(8.1		)	(8.2		)	(6.9		)
	Other expense, net	0.8			7.6			61.3
	Income (loss) from continuing operations before income tax	$	137		$	91.7		$	(4.4	)
	(a)	Operating income as presented in the segment table above is defined as i) net sales; ii) less cost of products sold; iii) less advertising, selling, general and administrative expenses; iv) less amortization of intangibles; and v) less restructuring charges.
Reconciliation of Assets from Segment to Consolidated	The following table presents the measure of segment assets used by the Company’s chief operating decision maker.
		December 31,
	(in millions of dollars)	2014			2013
	ACCO Brands North America(b)	$	433.7		$	465.4
	ACCO Brands International(b)	429.7			464.1
	Computer Products Group(b)	62.4			88.1
	Total segment assets	925.8			1,017.60
	Unallocated assets	1,299.20			1,364.30
	Corporate(b)	1.4			1
	Total assets	$	2,226.40		$	2,382.90
	(b)	Represents total assets, excluding: goodwill and identifiable intangibles resulting from business acquisitions, intercompany balances, cash, deferred taxes, prepaid pension assets, prepaid debt issuance costs and joint ventures accounted for on an equity basis.
Schedule of Assets by Segment Including Allocation of Intangible Assets and Goodwill	As a supplement to the presentation of segment assets presented above, the table below presents segment assets, including the allocation of identifiable intangible assets and goodwill resulting from business combinations.
		December 31,
	(in millions of dollars)	2014			2013
	ACCO Brands North America(c)	$	1,272.40		$	1,332.00
	ACCO Brands International(c)	692.7			758.4
	Computer Products Group(c)	77			102.4
	Total segment assets	2,042.10			2,192.80
	Unallocated assets	182.9			189.1
	Corporate(c)	1.4			1
	Total assets	$	2,226.40		$	2,382.90
	(c)	Represents total assets, excluding: intercompany balances, cash, deferred taxes, prepaid pension assets, prepaid debt issuance costs and joint ventures accounted for on an equity basis.
Schedule of Property, Plant and Equipment, Net by Geographic Region	Property, plant and equipment, net by geographic region were as follows:
		December 31,
	(in millions of dollars)	2014			2013
	U.S.	$	122		$	134.4
	Brazil	49.3			54.7
	U.K.	34.1			30.5
	Australia	12			13.7
	Other countries	18.1			20
	Property, plant and equipment, net	$	235.5		$	253.3
Schedule of Net Sales by Geographic Region	Net sales by geographic region for the years ended December 31, 2014, 2013 and 2012 were as follows(d):
	(in millions of dollars)	2014			2013			2012
	U.S.	$	921		$	955.5		$	959.2
	Brazil	154			157.2			118.9
	Canada	150.6			159.7			160.8
	Netherlands	130.2			130.2			45.9
	Australia	108.5			119.8			133.4
	U.K.	89.1			101.3			98
	Mexico	58.8			58.9			59.2
	Other countries	77			82.5			183.1
	Net sales	$	1,689.20		$	1,765.10		$	1,758.50
	(d)	Net sales are attributed to geographic areas based on the location of the selling company.

Joint_Venture_Investments_Tabl

Joint Venture Investments (Tables)	12 Months Ended
	Dec. 31, 2014
Equity Method Investments and Joint Ventures [Abstract]
Schedule of Equity Method Investments	Summarized below is aggregated financial information for the Company’s joint venture, which is accounted for under the equity method. Accordingly, we record our proportionate share of earnings or losses on the line entitled "Equity in earnings of joint ventures" in the Consolidated Statements of Income. Our share of the net assets of the joint venture is included within "Other non-current assets" in the Consolidated Balance Sheets.
		Year Ended December 31,
	(in millions of dollars)	2014		2013		2012
	Net sales	$	121.4	$	105.4	$	116.6
	Gross profit	48.2		44.8		47.9
	Operating income	23.6		23		24.7
	Net income	16.4		16.4		17.3
		December 31,
	(in millions of dollars)	2014		2013
	Current assets	$	83.4	$	71.8
	Non-current assets	47.3		32.5
	Current liabilities	40.7		32.1
	Non-current liabilities	22		4.9

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
Future Minimum Rental Payments for All Non-Cancelable Operating Leases	Future minimum rental payments for all non-cancelable operating leases (reduced by minor amounts from subleases) as of December 31, 2014 were as follows:
	(in millions of dollars)
	2015	$	23
	2016	20
	2017	16.3
	2018	14
	2019	12.9
	Thereafter	35
	Total minimum rental payments	$	121.2
	Less minimum rentals to be received under non-cancelable subleases	5.3
		$	115.9
Future Minimum Payments Under Unconditional Purchase Commitments	Future minimum payments under unconditional purchase commitments, primarily for inventory purchase commitments as of December 31, 2014 were as follows:
	(in millions of dollars)
	2015	$	74
	2016	10.7
	2017	10.5
	2018	2.4
	2019	—
	Thereafter	—
	Total unconditional purchase commitments	$	97.6

Discontinued_Operations_Tables

Discontinued Operations (Tables)	12 Months Ended
	Dec. 31, 2014
Discontinued Operations and Disposal Groups [Abstract]
Schedule of Operating Results and Financial Position of Discontinued Operations	The operating results and financial position of discontinued operations were as follows:
	(in millions, except per share data)	2014		2013			2012
	Operating Results:
	Loss on sale before income taxes	—		(0.3		)	(2.1		)
	Income tax benefit	—		(0.1		)	(0.5		)
	Loss from discontinued operations	$	—	$	(0.2	)	$	(1.6	)
	Per share:
	Basic loss from discontinued operations	$	—	$	—		$	(0.02	)
	Diluted loss from discontinued operations	$	—	$	—		$	(0.02	)

Quarterly_Financial_Informatio1

Quarterly Financial Information (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Schedule of Quarterly Financial Information	The following is an analysis of certain items in the Consolidated Statements of Income by quarter for 2014 and 2013:
	(in millions of dollars, except per share data)	1st Quarter			2nd Quarter		3rd Quarter		4th Quarter
	2014
	Net sales(1)	$	329.4		$	427.7	$	472.2	$	459.9
	Gross profit	88.5			131.2		153.3		156.9
	Operating income (loss)	(0.6		)	43.9		61.8		68.5
	Income (loss) from continuing operations	(7.8		)	21.3		34.2		43.9
	Loss from discontinued operations, net of income taxes	—			—		—		—
	Net income (loss)	$	(7.8	)	$	21.3	$	34.2	$	43.9
	Basic income (loss) per share:
	Income (loss) from continuing operations(2)	$	(0.07	)	$	0.19	$	0.3	$	0.39
	Loss from discontinued operations(2)	$	—		$	—	$	—	$	—
	Net income (loss)(2)	$	(0.07	)	$	0.19	$	0.3	$	0.39
	Diluted income (loss) per share:
	Income (loss) from continuing operations(2)	$	(0.07	)	$	0.18	$	0.29	$	0.38
	Loss from discontinued operations(2)	$	—		$	—	$	—	$	—
	Net income (loss)(2)	$	(0.07	)	$	0.18	$	0.29	$	0.38
	2013
	Net sales(1)	$	352		$	440.2	$	469.2	$	503.7
	Gross profit	97.2			138.3		142.3		170.1
	Operating income (loss)	(9.2		)	37.9		50.3		66.8
	Income (loss) from continuing operations	(8.9		)	9.5		26.4		50.3
	Loss from discontinued operations, net of income taxes	(0.1		)	—		—		(0.1		)
	Net income (loss)	$	(9.0	)	$	9.5	$	26.4	$	50.2
	Basic income (loss) per share:
	Income (loss) from continuing operations(2)	$	(0.08	)	$	0.08	$	0.23	$	0.44
	Loss from discontinued operations(2)	$	—		$	—	$	—	$	—
	Net income (loss)(2)	$	(0.08	)	$	0.08	$	0.23	$	0.44
	Diluted income (loss) per share:
	Income (loss) from continuing operations(2)	$	(0.08	)	$	0.08	$	0.23	$	0.43
	Loss from discontinued operations(2)	$	—		$	—	$	—	$	—
	Net income (loss)(2)	$	(0.08	)	$	0.08	$	0.23	$	0.43
	-1	Historically, our business has experienced higher sales in the third and fourth quarters of the calendar year. Two principal factors contribute to this seasonality: (1) the office products industry, its customers and ACCO Brands specifically are major suppliers of products related to the "back-to-school" season, which occurs principally from June through September for our North American business and from November through February for our Australian and Brazilian businesses; and (2) several products we sell lend themselves to calendar year-end purchase timing, including AT-A-GLANCE® and Day-Timer® planners, paper organization and storage products (including bindery) and Kensington computer accessories, which have higher sales in the fourth quarter driven by traditionally strong fourth-quarter sales of personal computers and tablets.
	-2	The sum of the quarterly earnings per share amounts may not equal the total for the year due to the effects of rounding and dilution as a result of issuing common shares and repurchasing of common shares during the year.

Condensed_Consolidating_Financ1

Condensed Consolidating Financial Information (Tables)	12 Months Ended
	Dec. 31, 2014
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Condensed Consolidating Balance Sheets	Condensed Consolidating Balance Sheets
		December 31, 2014
	(in millions of dollars)	Parent			Guarantors			Non-Guarantors			Eliminations			Consolidated
	Assets
	Current assets:
	Cash and cash equivalents	$	9.7		$	0.1		$	43.4		$	—		$	53.2
	Accounts receivable, net	—			156.1			264.4			—			420.5
	Inventories	—			129.9			100			—			229.9
	Receivables from affiliates	4.8			302.7			68			(375.5		)	—
	Deferred income taxes	27.2			—			12.2			—			39.4
	Other current assets	1.4			15.1			19.3			—			35.8
	Total current assets	43.1			603.9			507.3			(375.5		)	778.8
	Property, plant and equipment, net	4.2			117.8			113.5			—			235.5
	Deferred income taxes	0.9			—			30.8			—			31.7
	Goodwill	—			330.9			214			—			544.9
	Identifiable intangibles, net	57.5			397.9			116			—			571.4
	Other non-current assets	15.2			1			47.9			—			64.1
	Investment in, long term receivable from affiliates	1,680.00			890.8			441			(3,011.8		)	—
	Total assets	$	1,800.90		$	2,342.30		$	1,470.50		$	(3,387.3	)	$	2,226.40
	Liabilities and Stockholders’ Equity
	Current liabilities:
	Notes payable	$	—		$	—		$	0.8		—			$	0.8
	Current portion of long-term debt	0.7			0.1			—			—			0.8
	Accounts payable	—			84.8			74.3			—			159.1
	Accrued compensation	3.3			20.1			13.2			—			36.6
	Accrued customer programs liabilities	—			60.1			51.7			—			111.8
	Accrued interest	6.5			—			—			—			6.5
	Other current liabilities	1.9			31			46.9			—			79.8
	Payables to affiliates	5.6			214.1			240.5			(460.2		)	—
	Total current liabilities	18			410.2			427.4			(460.2		)	395.4
	Long-term debt	799			—			—			—			799
	Long-term notes payable to affiliates	178.2			26.7			31.2			(236.1		)	—
	Deferred income taxes	120			—			52.2			—			172.2
	Pension and post-retirement benefit obligations	1.5			52.3			46.7			—			100.5
	Other non-current liabilities	3.2			19.9			55.2			—			78.3
	Total liabilities	1,119.90			509.1			612.7			(696.3		)	1,545.40
	Stockholders’ equity:
	Common stock	1.1			448			247			(695.0		)	1.1
	Treasury stock	(5.9		)	—			—			—			(5.9		)
	Paid-in capital	2,031.50			1,551.10			743			(2,294.1		)	2,031.50
	Accumulated other comprehensive loss	(292.6		)	(65.2		)	(183.0		)	248.2			(292.6		)
	(Accumulated deficit) retained earnings	(1,053.1		)	(100.7		)	50.8			49.9			(1,053.1		)
	Total stockholders’ equity	681			1,833.20			857.8			(2,691.0		)	681
	Total liabilities and stockholders’ equity	$	1,800.90		$	2,342.30		$	1,470.50		$	(3,387.3	)	$	2,226.40
	Condensed Consolidating Balance Sheets
		December 31, 2013
	(in millions of dollars)	Parent			Guarantors			Non-Guarantors			Eliminations			Consolidated
	Assets
	Current assets:
	Cash and cash equivalents	$	7		$	1		$	45.5		$	—		$	53.5
	Accounts receivable, net	—			177.3			294.6			—			471.9
	Inventories	—			124.8			129.9			—			254.7
	Receivables from affiliates	8.2			101.5			65			(174.7		)	—
	Deferred income taxes	20.9			—			12.6			—			33.5
	Other current assets	0.6			8.8			18.7			—			28.1
	Total current assets	36.7			413.4			566.3			(174.7		)	841.7
	Property, plant and equipment, net	4.1			130.3			118.9			—			253.3
	Deferred income taxes	—			—			37.3			—			37.3
	Goodwill	—			330.9			237.4			—			568.3
	Identifiable intangibles, net	57.6			415.4			134			—			607
	Other non-current assets	20			6.2			49.1			—			75.3
	Investment in, long term receivable from affiliates	1,818.20			868.4			441			(3,127.6		)	—
	Total assets	$	1,936.60		$	2,164.60		$	1,584.00		$	(3,302.3	)	$	2,382.90
	Liabilities and Stockholders’ Equity
Current liabilities:
Current portion of long-term debt	$	—		$	0.1		$	—		$	—		$	0.1
Accounts payable	—			81.4			96.5			—			177.9
Accrued compensation	4.6			12.3			15.1			—			32
Accrued customer programs liabilities	—			65.5			58.1			—			123.6
Accrued interest	7			—			—			—			7
Other current liabilities	3			39.1			62.4			—			104.5
Payables to affiliates	9.5			206.4			244			(459.9		)	—
Total current liabilities	24.1			404.8			476.1			(459.9		)	445.1
Long-term debt	920.7			0.1			—			—			920.8
Long-term notes payable to affiliates	178.3			26.7			35.2			(240.2		)	—
Deferred income taxes	109.2			—			59.9			—			169.1
Pension and post-retirement benefit obligations	1.5			24.2			36			—			61.7
Other non-current liabilities	0.5			22			61.4			—			83.9
Total liabilities	1,234.30			477.8			668.6			(700.1		)	1,680.60
Stockholders’ equity:
Common stock	1.1			448.1			267.4			(715.5		)	1.1
Treasury stock	(3.5		)	—			—			—			(3.5		)
Paid-in capital	2,035.00			1,551.20			743			(2,294.2		)	2,035.00
Accumulated other comprehensive loss	(185.6		)	(45.6		)	(99.7		)	145.3			(185.6		)
(Accumulated deficit) retained earnings	(1,144.7		)	(266.9		)	4.7			262.2			(1,144.7		)
Total stockholders’ equity	702.3			1,686.80			915.4			(2,602.2		)	702.3
Total liabilities and stockholders’ equity	$	1,936.60		$	2,164.60		$	1,584.00		$	(3,302.3	)	$	2,382.90
Condensed Consolidating Statement of Comprehensive Income	Condensed Consolidating Statement of Comprehensive Income
		Year Ended December 31, 2014
	(in millions of dollars)	Parent			Guarantors			Non-			Eliminations			Consolidated
								Guarantors
	Net sales	$	—		$	969.2		$	772		$	(52.0	)	$	1,689.20
	Cost of products sold	—			673.4			537.9			(52.0		)	1,159.30
	Gross profit	—			295.8			234.1			—			529.9
	Advertising, selling, general and administrative expenses	45.4			157.1			126.1			—			328.6
	Amortization of intangibles	0.1			17.7			4.4			—			22.2
	Restructuring charges	—			4.6			0.9			—			5.5
	Operating (loss) income	(45.5		)	116.4			102.7			—			173.6
	(Income) expense from affiliates	(1.5		)	(20.7		)	22.2			—			—
	Interest expense	49.9			—			(0.4		)	—			49.5
	Interest income	—			(0.1		)	(5.5		)	—			(5.6		)
	Equity in earnings of joint ventures	—			—			(8.1		)	—			(8.1		)
	Other expense (income), net	0.4			(0.7		)	1.1			—			0.8
	Income (loss) from continuing operations before income taxes and earnings of wholly owned subsidiaries	(94.3		)	137.9			93.4			—			137
	Income tax expense	18.2			—			27.2			—			45.4
	(Loss) income from continuing operations	(112.5		)	137.9			66.2			—			91.6
	Loss from discontinued operations, net of income taxes	—			—			—			—			—
	Income (loss) before earnings of wholly owned subsidiaries	(112.5		)	137.9			66.2			—			91.6
	Earnings of wholly owned subsidiaries	204.1			62.7			—			(266.8		)	—
	Net income	$	91.6		$	200.6		$	66.2		$	(266.8	)	$	91.6
	Comprehensive (loss) income	$	(15.4	)	$	181		$	(17.1	)	$	(163.9	)	$	(15.4	)
	Condensed Consolidating Statement of Comprehensive Income
		Year Ended December 31, 2013
	(in millions of dollars)	Parent			Guarantors			Non-			Eliminations			Consolidated
								Guarantors
	Net sales	$	—		$	971.2		$	814		$	(20.1	)	$	1,765.10
	Cost of products sold	—			669.8			567.5			(20.1		)	1,217.20
	Gross profit	—			301.4			246.5			—			547.9
	Advertising, selling, general and administrative expenses	40.6			183.5			123.2			—			347.3
	Amortization of intangibles	0.1			19.7			4.9			—			24.7
	Restructuring charges	0.5			14.3			15.3			—			30.1
	Operating income (loss)	(41.2		)	83.9			103.1			—			145.8
	Expense (income) from affiliates	(1.5		)	(21.7		)	23.2			—			—
	Interest expense	58.6			—			0.4			—			59
	Interest income	—			(0.1		)	(4.2		)	—			(4.3		)
	Equity in earnings of joint ventures	—			—			(8.2		)	—			(8.2		)
	Other expense, net	4.8			0.8			2			—			7.6
	Income (loss) from continuing operations before income taxes and earnings of wholly owned subsidiaries	(103.1		)	104.9			89.9			—			91.7
	Income tax expense (benefit)	(1.5		)	—			15.9			—			14.4
	Income (loss) from continuing operations	(101.6		)	104.9			74			—			77.3
	Loss from discontinued operations, net of income taxes	—			(0.2		)	—			—			(0.2		)
	Income (loss) before earnings of wholly owned subsidiaries	(101.6		)	104.7			74			—			77.1
	Earnings of wholly owned subsidiaries	178.7			72.6			—			(251.3		)	—
	Net income	$	77.1		$	177.3		$	74		$	(251.3	)	$	77.1
	Comprehensive income	$	47.6		$	200.6		$	26.5		$	(227.1	)	$	47.6
	Condensed Consolidating Statement of Comprehensive Income
		Year Ended December 31, 2012
	(in millions of dollars)	Parent			Guarantors			Non-			Eliminations			Consolidated
								Guarantors
	Net sales	$	—		$	976.5		$	803.4		$	(21.4	)	$	1,758.50
	Cost of products sold	—			684.2			558.6			(21.4		)	1,221.40
	Gross profit	—			292.3			244.8			—			537.1
	Advertising, selling, general and administrative expenses	46.6			176.4			130.6			—			353.6
	Amortization of intangibles	0.1			15.3			4.5			—			19.9
	Restructuring charges	—			20.2			4.1			—			24.3
	Operating income (loss)	(46.7		)	80.4			105.6			—			139.3
	Expense (income) from affiliates	(1.3		)	(24.6		)	25.9			—			—
	Interest expense	61.5			28.3			1.5			—			91.3
	Interest income	(0.1		)	(0.1		)	(1.8		)	—			(2.0		)
	Equity in (earnings) losses of joint ventures	—			1.9			(8.8		)	—			(6.9		)
	Other expense (income), net	59.7			3.3			(1.7		)	—			61.3
(Loss) income from continuing operations before income taxes and earnings of wholly owned subsidiaries	(166.5		)	71.6			90.5			—			(4.4		)
Income tax benefit	(121.1		)	(0.2		)	(0.1		)	—			(121.4		)
Income (loss) from continuing operations	(45.4		)	71.8			90.6			—			117
(Loss) income from discontinued operations, net of income taxes	0.5			(1.4		)	(0.7		)	—			(1.6		)
Income (loss) before earnings of wholly owned subsidiaries	(44.9		)	70.4			89.9			—			115.4
Earnings of wholly owned subsidiaries	160.3			79			—			(239.3		)	—
Net income	$	115.4		$	149.4		$	89.9		$	(239.3	)	$	115.4
Comprehensive income	$	90.3		$	146.3		$	67.5		$	(213.8	)	$	90.3
Condensed Consolidating Statement of Cash Flows	Condensed Consolidating Statement of Cash Flows
		Year Ended December 31, 2014
	(in millions of dollars)	Parent			Guarantors			Non-Guarantors			Consolidated
	Net cash provided (used) by operating activities	$	(77.9	)	$	182.3		$	67.3		$	171.7
	Investing activities:
	Additions to property, plant and equipment	(0.2		)	(10.6		)	(18.8		)	(29.6		)
	Payments for (proceeds from) interest in affiliates	—			20.5			(20.5		)	—
	Proceeds from the disposition of assets	—			3.6			0.2			3.8
	Net cash (used) provided by investing activities	(0.2		)	13.5			(39.1		)	(25.8		)
	Financing activities:
	Intercompany financing	188.3			(181.3		)	(7.0		)	—
	Net dividends	35.4			(15.3		)	(20.1		)	—
	Repayments of long-term debt	(121.0		)	(0.1		)	—			(121.1		)
	Borrowings of notes payable, net	—			—			1			1
	Payments for debt issuance costs	(0.3		)	—			—			(0.3		)
	Repurchases of common stock	(19.4		)	—			—			(19.4		)
	Payments related to tax withholding for share-based compensation	(2.5		)	—			—			(2.5		)
	Proceeds from the exercise of stock options	0.3			—			—			0.3
	Net cash (used) provided by financing activities	80.8			(196.7		)	(26.1		)	(142.0		)
	Effect of foreign exchange rate changes on cash and cash equivalents	—			—			(4.2		)	(4.2		)
	Net (decrease) increase in cash and cash equivalents	2.7			(0.9		)	(2.1		)	(0.3		)
	Cash and cash equivalents:
	Beginning of the period	7			1			45.5			53.5
	End of the period	$	9.7		$	0.1		$	43.4		$	53.2
	Condensed Consolidating Statement of Cash Flows
		Year Ended December 31, 2013
	(in millions of dollars)	Parent			Guarantors			Non-Guarantors			Consolidated
	Net cash provided (used) by operating activities	$	(81.7	)	$	186.5		$	89.7		$	194.5
	Investing activities:
	Additions to property, plant and equipment	—			(21.2		)	(15.4		)	(36.6		)
	Payments for (proceeds from) interest in affiliates	—			55.6			(55.6		)	—
	Payments related to the sale of discontinued operations	—			(1.5		)	—			(1.5		)
	Proceeds from the disposition of assets	—			—			6.1			6.1
	Cost of acquisition, net of cash acquired	—			(1.3		)	—			(1.3		)
	Net cash (used) provided by investing activities	—			31.6			(64.9		)	(33.3		)
	Financing activities:
	Intercompany financing	143.8			(168.2		)	24.4			—
	Net dividends	65.7			(45.9		)	(19.8		)	—
	Proceeds from long-term borrowings	530			—			—			530
	Repayments of long-term debt	(658.1		)	—			(21.4		)	(679.5		)
	(Repayments) borrowings of notes payable, net	0.5			—			(1.2		)	(0.7		)
	Payments for debt issuance costs	(4.3		)	—			—			(4.3		)
	Payments related to tax withholding for share-based compensation	(1.0		)	—			—			(1.0		)
	Net cash (used) provided by financing activities	76.6			(214.1		)	(18.0		)	(155.5		)
	Effect of foreign exchange rate changes on cash and cash equivalents	—			—			(2.2		)	(2.2		)
	Net increase (decrease) in cash and cash equivalents	(5.1		)	4			4.6			3.5
	Cash and cash equivalents:
	Beginning of the period	12.1			(3.0		)	40.9			50
	End of the period	$	7		$	1		$	45.5		$	53.5
	Condensed Consolidating Statement of Cash Flows
		Year Ended December 31,2012
	(in millions of dollars)	Parent			Guarantors			Non-Guarantors			Consolidated
	Net cash (used) provided by operating activities:	$	(156.0	)	$	137.5		$	11		$	(7.5	)
	Investing activities:
	Additions to property, plant and equipment	—			(22.4		)	(7.9		)	(30.3		)
	Proceeds (payments) related to the sale of discontinued operations	—			2.1			(0.6		)	1.5
	Proceeds from the disposition of assets	—			—			3.1			3.1
	Cost of acquisitions, net of cash acquired	(429.5		)	—			32			(397.5		)
	Net cash (used) provided by investing activities	(429.5		)	(20.3		)	26.6			(423.2		)
	Financing activities:
	Intercompany financing	775.6			(777.4		)	1.8			—
	Net dividends	53.3			27.3			(80.6		)	—
	Proceeds from long-term borrowings	545			690			35			1,270.00
	Repayments of long-term debt	(816.2		)	(42.8		)	(13.0		)	(872.0		)
Borrowings of short-term debt, net	—			—			1.2			1.2
Payments for debt issuance costs	(21.5		)	(16.1		)	(0.9		)	(38.5		)
Payments related to tax withholding for share-based compensation	(0.8		)	—			—			(0.8		)
Proceeds from the exercise of stock options	0.2			—			—			0.2
Net cash provided (used) by financing activities	535.6			(119.0		)	(56.5		)	360.1
Effect of foreign exchange rate changes on cash	—			—			(0.6		)	(0.6		)
Net decrease in cash and cash equivalents	(49.9		)	(1.8		)	(19.5		)	(71.2		)
Cash and cash equivalents:
Beginning of the period	62			(1.2		)	60.4			121.2
End of the period	$	12.1		$	(3.0	)	$	40.9		$	50

Basis_Of_Presentation_Basis_of

Basis Of Presentation Basis of Presentation (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Prior Period Reclassification Adjustment	$3.10	$3.70

Significant_Accounting_Policie3

Significant Accounting Policies (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Accounting Policies [Line Items]
Advertising Expense	$130.80	$131	$125.70
Research and Development Expense	$20.20	$22.50	$20.80
Buildings | Minimum
Accounting Policies [Line Items]
Property, plant and equipment, useful life	40 years
Buildings | Maximum
Accounting Policies [Line Items]
Property, plant and equipment, useful life	50 years
Machinery, equipment and furniture | Minimum
Accounting Policies [Line Items]
Property, plant and equipment, useful life	3 years
Machinery, equipment and furniture | Maximum
Accounting Policies [Line Items]
Property, plant and equipment, useful life	10 years
Software and Software Development Costs [Member] | Minimum
Accounting Policies [Line Items]
Property, plant and equipment, useful life	5 years
Software and Software Development Costs [Member] | Maximum
Accounting Policies [Line Items]
Property, plant and equipment, useful life	7 years
Amortizable Period, Option 1
Accounting Policies [Line Items]
Estimated average remaining useful life	10 years
Amortizable Period, Option 2
Accounting Policies [Line Items]
Estimated average remaining useful life	15 years
Amortizable Period, Option 3
Accounting Policies [Line Items]
Estimated average remaining useful life	23 years
Amortizable Period, Option 4
Accounting Policies [Line Items]
Estimated average remaining useful life	30 years

Acquisitions_Narrative_Details

Acquisitions (Narrative) (Details) (USD $)	0 Months Ended	12 Months Ended
In Millions, except Share data, unless otherwise specified	1-May-12	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Business Acquisition [Line Items]
Common stock, shares, outstanding	113,100,000	111,911,290	113,663,856
Value of common shares issued		$0	$0	$602.30
ACCO shareholder ownership percentage	49.50%
Acquisition related costs classified as Selling, General, and Administrative expenses				14.5
Mead C&OP
Business Acquisition [Line Items]
MWV ownership percentage of ACCO	50.50%
Value of common shares issued	602.3
Purchase price, net of cash acquired	999.8
Dividend paid to MWV	460
Common Stock | Mead C&OP
Business Acquisition [Line Items]
Number of shares issued to MWV shareholders	57,100,000

Acquisitions_Consideration_Giv

Acquisitions (Consideration Given for Acquisition of MEAD C&OP) (Details) (USD $)	0 Months Ended
In Millions, except Share data, unless otherwise specified	1-May-12	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Business Acquisition [Line Items]
Outstanding shares of ACCO Brands common stock	56,000,000	111,911,290	113,663,856	113,143,344	55,475,735
Multiplier needed to calculate shares to be issued	1.02020202
Closing price per share of ACCO Brands common stock	$10.55
Working capital adjustment	($30.50)
Consideration given for Mead C&OP	1,031.80
Mead C&OP
Business Acquisition [Line Items]
Dividend paid to MWV	460
Consideration given for Mead C&OP	$1,031.80

Acquisitions_Purchase_Price_Al

Acquisitions (Purchase Price Allocation) (Details) (USD $)	0 Months Ended
In Millions, unless otherwise specified	1-May-12	Dec. 31, 2014	Dec. 31, 2013
Business Acquisition [Line Items]
Consideration given for Mead C&OP	$1,031.80
Plus fair value of liabilities assumed:
Current and non-current deferred tax liabilities		101.3	98.3
Mead C&OP
Business Acquisition [Line Items]
Consideration given for Mead C&OP	1,031.80
Cash acquired	-32
Net purchase price	999.8
Plus fair value of liabilities assumed:
Accounts payable and accrued liabilities	103.9
Current and non-current deferred tax liabilities	209.6
Other non-current liabilities	72.9
Fair value of liabilities assumed	386.4
Less fair value of assets acquired:
Accounts receivable	73.3
Inventory	143.5
Property, plant and equipment	136.6
Identifiable intangible assets	543.2
Other assets	24.3
Fair value of assets acquired	920.9
Goodwill	$465.30

Longterm_Debt_and_Shortterm_Bo2

Long-term Debt and Short-term Borrowings (Notes Payable and Long-term Debt) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Debt Instrument [Line Items]
Total debt	$800.70	$920.90
Less: current portion	-1.7	-0.1
Total long-term debt	799	920.8
Senior Secured Notes | U.S. Dollar Senior Secured Term Loan A, due May 2018 (floating interest rate of 2.24% at December 31, 2014 and 2.49% at December 31, 2013)
Debt Instrument [Line Items]
Senior Secured Term Loan	299	420
Interest rate at period end	2.24%	2.49%
Senior Notes | Senior Unsecured Notes, due April 2020 (fixed interest rate of 6.75%)
Debt Instrument [Line Items]
Senior Unsecured Notes	500	500
Stated percentage	6.75%	6.75%
Other borrowings
Debt Instrument [Line Items]
Other borrowings	$1.70	$0.90

Longterm_Debt_and_Shortterm_Bo3

Long-term Debt and Short-term Borrowings Long-term Debt and Short-term Borrowings (Credit Spread) (Details) (2013 Restated Credit Agreement)	0 Months Ended	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2014
Eurodollar
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%	1.00%
Eurodollar | Greater than 4.00 to 1.00
Debt Instrument [Line Items]
Basis spread on variable rate		2.50%
Eurodollar | Less than or equal to 4.00 to 1.00 and greater than 3.50 to 1.00
Debt Instrument [Line Items]
Basis spread on variable rate		2.25%
Eurodollar | Less than or equal to 3.50 to 1.00 and greater than 2.5 to 1.00
Debt Instrument [Line Items]
Basis spread on variable rate		2.00%
Eurodollar | Less than or equal to 2.50 to 1.00
Debt Instrument [Line Items]
Basis spread on variable rate		1.75%
Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
Base Rate | Greater than 4.00 to 1.00
Debt Instrument [Line Items]
Basis spread on variable rate		1.50%
Base Rate | Less than or equal to 4.00 to 1.00 and greater than 3.50 to 1.00
Debt Instrument [Line Items]
Basis spread on variable rate		1.25%
Base Rate | Less than or equal to 3.50 to 1.00 and greater than 2.5 to 1.00
Debt Instrument [Line Items]
Basis spread on variable rate		1.00%
Base Rate | Less than or equal to 2.50 to 1.00
Debt Instrument [Line Items]
Basis spread on variable rate		0.75%

Longterm_Debt_and_Shortterm_Bo4

Long-term Debt and Short-term Borrowings (Financial Covenant Ratios) (Details) (2013 Restated Credit Agreement)	Dec. 31, 2014
Maximum | Effective Date through June 30, 2015
Debt Instrument [Line Items]
Consolidated Leverage Ratio	4	[1]
Maximum | July 1, 2015 through June 30, 2017
Debt Instrument [Line Items]
Consolidated Leverage Ratio	3.75	[1]
Maximum | July 1, 2017 and thereafter
Debt Instrument [Line Items]
Consolidated Leverage Ratio	3.5	[1]
Minimum
Debt Instrument [Line Items]
Consolidated Fixed Charge Coverage Ratio	1.25
[1]	(1)The Leverage Ratio is computed by dividing the Company's net funded indebtedness by the cumulative four-quarter-trailing EBITDA, which excludes transaction costs, restructuring and other charges up to certain limits as well as other adjustments defined in the 2013 Restated Credit Agreement.

Longterm_Debt_and_Shortterm_Bo5

Long-term Debt and Short-term Borrowings (Narrative) (Details) (USD $)	12 Months Ended			0 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2014	Sep. 30, 2013	Jun. 30, 2016	13-May-13
Debt Instrument [Line Items]
Repurchased face amount	$121,100,000	$679,500,000	$872,000,000
Write offs for original issue discount and debt origination costs		9,400,000
Refinancing fees		4,500,000
Debt Issuance costs capitalized		4,200,000
2013 Restated Credit Agreement
Debt Instrument [Line Items]
Credit agreement, face amount							780,000,000
Credit agreement, term	5 years
Required prepayment, percent of proceeds from asset sales and dispositions	100.00%
Required prepayment, proceeds from asset sales and disposition exceeding minimum amount	10,000,000
Required prepayment, percent of proceeds from property insurance or condemnation awards	100.00%
Required prepayment, proceeds from property insurance or condemnation awards exceeding minimum amount	10,000,000
Required prepayment, percent of proceeds from other non-permitted debt agreements	100.00%
2013 Restated Credit Agreement | Federal Funds
Debt Instrument [Line Items]
Basis spread on variable rate	0.50%
2013 Restated Credit Agreement | Eurodollar
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%			2.00%
Basis spread on variable rate, term	1 month
2013 Restated Credit Agreement | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate				1.00%
2013 Restated Credit Agreement | Minimum
Debt Instrument [Line Items]
Consolidated Fixed Charge Coverage Ratio	1.25			1.25
Secured Debt [Member] | USD Senior Secured Term Loan B May 2019
Debt Instrument [Line Items]
Repurchased aggregate principal amount							310,200,000
Secured Debt [Member] | USD Senior Secured Term Loan A May 2017
Debt Instrument [Line Items]
Repurchased aggregate principal amount							220,800,000
Senior Secured Notes | USD Senior Secured Term Loan A May 2018
Debt Instrument [Line Items]
Senior Secured Term Loan							530,000,000
Quarterly principal payment, based on annual percentage					5.00%
Senior Secured Notes | USD Senior Secured Term Loan A May 2018 | Forecast
Debt Instrument [Line Items]
Quarterly principal payment, based on annual percentage						12.50%
Senior Secured Notes | USD Senior Secured Revolving Credit Facility, due May 2018
Debt Instrument [Line Items]
Amount available for borrowings under Senior Secured Revolving Credit Facilities	238,300,000			238,300,000
Letters of credit outstanding, amount	11,700,000			11,700,000
Undrawn line of credit							250,000,000
Senior Secured Notes | USD Senior Secured Revolving Credit Facility, due May 2018 | Minimum
Debt Instrument [Line Items]
Revolving facility, unused capacity, commitment fee (percent)	0.25%			0.38%
Senior Secured Notes | USD Senior Secured Revolving Credit Facility, due May 2018 | Maximum
Debt Instrument [Line Items]
Revolving facility, unused capacity, commitment fee (percent)	0.50%
Senior Secured Notes | USD Senior Revolving Credit Facility May 2017
Debt Instrument [Line Items]
Undrawn line of credit							250,000,000
Senior Secured Notes | Canadian Dollar Senior Secured Term Loan A, due May 2017 (floating interest rate of 4.26% at December 31, 2012)
Debt Instrument [Line Items]
Repurchased face amount		$21,400,000

Pension_and_Other_Retiree_Bene2

Pension and Other Retiree Benefits (Pension Benefit Obligation and Funded Status) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Change in plan assets
Employer contributions	$12.40
Amounts recognized in the Consolidated Balance Sheets consist of:
Pension and post-retirement benefit obligations	100.5		61.7
U.S.
Change in projected benefit obligation (PBO)
Projected benefit obligation at beginning of year	177.4		191.7
Service cost	2.1		2		1.2
Interest cost	8.6		7.9		8.4
Actuarial loss (gain)	34.2		-19
Participants’ contributions	0		0
Benefits paid	-9.4		-8.9
Curtailment gain	0		0
Plan amendments	0		3.7
Foreign exchange rate changes	0		0
Projected benefit obligation at end of year	212.9		177.4		191.7
Change in plan assets
Fair value of plan assets at beginning of year	156.3		135.4
Actual return on plan assets	10.8		21.7
Employer contributions	6.2		8.1
Participants’ contributions	0		0
Benefits paid	-9.4		-8.9
Foreign exchange rate changes	0		0
Fair value of plan assets at end of year	163.9		156.3		135.4
Funded status (Fair value of plan assets less PBO)	-49		-21.1
Amounts recognized in the Consolidated Balance Sheets consist of:
Other non-current assets	0		0
Other current liabilities	0		0
Pension and post-retirement benefit obligations	49	[1]	21.1	[1]
Components of accumulated other comprehensive income, net of tax:
Unrecognized actuarial loss (gain)	51.9		33.3
Unrecognized prior service cost (credit)	2.4		2.7
International
Change in projected benefit obligation (PBO)
Projected benefit obligation at beginning of year	371.4		361
Service cost	0.8		1.6		2.1
Interest cost	15.7		14.7		14.3
Actuarial loss (gain)	48.3		1.9
Participants’ contributions	0.2		0.3
Benefits paid	-16.6		-13.9
Curtailment gain	0		-1
Plan amendments	-0.2		0
Foreign exchange rate changes	-27.8		6.8
Projected benefit obligation at end of year	391.8		371.4		361
Change in plan assets
Fair value of plan assets at beginning of year	342.8		311.9
Actual return on plan assets	43.8		32.2
Employer contributions	5.5		6
Participants’ contributions	0.2		0.3
Benefits paid	-16.6		-13.9
Foreign exchange rate changes	-24.5		6.3
Fair value of plan assets at end of year	351.2		342.8		311.9
Funded status (Fair value of plan assets less PBO)	-40.6		-28.6
Amounts recognized in the Consolidated Balance Sheets consist of:
Other non-current assets	0		0.3
Other current liabilities	0.5		0.6
Pension and post-retirement benefit obligations	40.1	[1]	28.3	[1]
Components of accumulated other comprehensive income, net of tax:
Unrecognized actuarial loss (gain)	78.1		63.6
Unrecognized prior service cost (credit)	-0.4		-0.3
Post-retirement
Change in projected benefit obligation (PBO)
Projected benefit obligation at beginning of year	13.3		16
Service cost	0.2		0.2		0.2
Interest cost	0.5		0.6		0.6
Actuarial loss (gain)	-0.3		-2.8
Participants’ contributions	0.1		0.1
Benefits paid	-0.8		-0.7
Curtailment gain	0		0
Plan amendments	-0.4		0
Foreign exchange rate changes	-0.4		-0.1
Projected benefit obligation at end of year	12.2		13.3		16
Change in plan assets
Fair value of plan assets at beginning of year	0		0
Actual return on plan assets	0		0
Employer contributions	0.7		0.6
Participants’ contributions	0.1		0.1
Benefits paid	-0.8		-0.7
Foreign exchange rate changes	0		0
Fair value of plan assets at end of year	0		0		0
Funded status (Fair value of plan assets less PBO)	-12.2		-13.3
Amounts recognized in the Consolidated Balance Sheets consist of:
Other non-current assets	0		0
Other current liabilities	0.8		1
Pension and post-retirement benefit obligations	11.4	[1]	12.3	[1]
Components of accumulated other comprehensive income, net of tax:
Unrecognized actuarial loss (gain)	-1.1		-2.9
Unrecognized prior service cost (credit)	($1.50)		($0.10)
[1]	Pension and post-retirement obligations of $100.5 million as of December 31, 2014, increased from $61.7 million as of December 31, 2013, due to lower discount rates compared to prior year assumptions and the adoption of new mortality tables for the U.S. and Canadian plans.

Pension_and_Other_Retiree_Bene3

Pension and Other Retiree Benefits (Amounts in Accumulated Other Comprehensive Income) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014
U.S.
Defined Benefit Plan Disclosure [Line Items]
Actuarial loss (gain)	$2.10
Prior service cost (credit)	0.4
Total amounts included in accumulated other comprehensive income expected to be recognized	2.5
International
Defined Benefit Plan Disclosure [Line Items]
Actuarial loss (gain)	2.5
Prior service cost (credit)	0
Total amounts included in accumulated other comprehensive income expected to be recognized	2.5
Post-retirement
Defined Benefit Plan Disclosure [Line Items]
Actuarial loss (gain)	-0.2
Prior service cost (credit)	-0.2
Total amounts included in accumulated other comprehensive income expected to be recognized	($0.40)

Pension_and_Other_Retiree_Bene4

Pension and Other Retiree Benefits (Accumulated Benefit Obligations in Excess of Plan Assets) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
U.S.
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	$212.90	$177.40
Accumulated benefit obligation	209.1	173
Fair value of plan assets	163.9	156.3
International
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	371	331.2
Accumulated benefit obligation	360.9	321.7
Fair value of plan assets	$331.10	$302.80

Pension_and_Other_Retiree_Bene5

Pension and Other Retiree Benefits (Net Periodic Benefit Expense) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
U.S.
Defined Benefit Plan Disclosure [Line Items]
Service cost	$2.10	$2	$1.20
Interest cost	8.6	7.9	8.4
Expected return on plan assets	-12	-10.4	-10.4
Amortization of net loss (gain)	5.1	9.6	6.2
Amortization of prior service cost (credit)	0.4	0.1	0
Curtailment gain	0	0	0
Settlement loss (gain)	0	0	0.7
Net periodic benefit cost (income)	4.2	9.2	6.1
International
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.8	1.6	2.1
Interest cost	15.7	14.7	14.3
Expected return on plan assets	-22.8	-20.6	-16.2
Amortization of net loss (gain)	1.9	2.4	2.2
Amortization of prior service cost (credit)	0	0	0.4
Curtailment gain	0	-1	0
Settlement loss (gain)	0	0	0
Net periodic benefit cost (income)	-4.4	-2.9	2.8
Post-retirement
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.2	0.2	0.2
Interest cost	0.5	0.6	0.6
Expected return on plan assets	0	0	0
Amortization of net loss (gain)	-1.1	-0.6	-1.6
Amortization of prior service cost (credit)	0	0	0
Curtailment gain	0	0	0
Settlement loss (gain)	-0.1	0	0
Net periodic benefit cost (income)	-0.5	0.2	-0.8
Supplemental Retirement Plan
Defined Benefit Plan Disclosure [Line Items]
Settlement	$0.70

Pension_and_Other_Retiree_Bene6

Pension and Other Retiree Benefits (Other Changes Recognized in Other Comprehensive Income) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Current year actuarial loss (gain)	$60.20	($39.30)	$21.10
Amortization of actuarial (loss) gain	-6	-11.4	-7.2
Amortization of prior service cost included in net income	-0.3	-0.1	0
U.S.
Defined Benefit Plan Disclosure [Line Items]
Current year actuarial loss (gain)	35.4	-30.2	9.6
Amortization of actuarial (loss) gain	-5.1	-9.6	-6.2
Current year prior service cost (credit)	0	3.7	0.8
Amortization of prior service cost included in net income	-0.4	-0.1	0
Foreign exchange rate changes	0	0	0
Total recognized in other comprehensive income (loss)	29.9	-36.2	4.2
Total recognized in net periodic benefit cost (credit) and other comprehensive income (loss)	34.1	-27	10.3
International
Defined Benefit Plan Disclosure [Line Items]
Current year actuarial loss (gain)	27.3	-10	11.4
Amortization of actuarial (loss) gain	-1.9	-2.4	-2.2
Current year prior service cost (credit)	-0.2	0	-0.3
Amortization of prior service cost included in net income	0	0	-0.4
Foreign exchange rate changes	-6.8	2.1	4.1
Total recognized in other comprehensive income (loss)	18.4	-10.3	12.6
Total recognized in net periodic benefit cost (credit) and other comprehensive income (loss)	14	-13.2	15.4
Post-retirement
Defined Benefit Plan Disclosure [Line Items]
Current year actuarial loss (gain)	-0.3	-2.8	0.1
Amortization of actuarial (loss) gain	1.1	0.6	1.6
Current year prior service cost (credit)	-0.3	0	0
Amortization of prior service cost included in net income	0	0	0
Foreign exchange rate changes	0.1	0	-0.1
Total recognized in other comprehensive income (loss)	0.6	-2.2	1.6
Total recognized in net periodic benefit cost (credit) and other comprehensive income (loss)	$0.10	($2)	$0.80

Pension_and_Other_Retiree_Bene7

Pension and Other Retiree Benefits (Weighted Average Assumptions Used in Calculating Benefit Obligation) (Details)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
U.S.
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.20%	5.00%	4.20%
International
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.40%	4.30%	4.30%
Rate of compensation increase	3.00%	3.30%	4.00%
Post-retirement
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.70%	4.40%	4.00%
Rate of compensation increase	0.00%	0.00%	0.00%

Pension_and_Other_Retiree_Bene8

Pension and Other Retiree Benefits (Weighted Average Assumptions Used In Calculating Net Periodic Benefit Cost) (Details)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
U.S.
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.00%	4.20%	5.00%
Expected long-term rate of return	8.20%	8.20%	8.20%
International
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.30%	4.30%	4.70%
Expected long-term rate of return	6.80%	6.80%	6.20%
Rate of compensation increase	3.30%	4.00%	3.60%
Post-retirement
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.40%	4.00%	4.50%
Expected long-term rate of return	0.00%	0.00%	0.00%
Rate of compensation increase	0.00%	0.00%	0.00%

Pension_and_Other_Retiree_Bene9

Pension and Other Retiree Benefits (Assumed Health Care Cost Trend Rates) (Details) (Post-retirement)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Post-retirement
Defined Benefit Plan Disclosure [Line Items]
Health care cost trend rate assumed for next year	8.00%	8.00%	7.00%
Rate that the cost trend rate is assumed to decline (the ultimate trend rate)	5.00%	5.00%	5.00%
Year that the rate reaches the ultimate trend rate	2023	2020	2020

Recovered_Sheet1

Pension and Other Retiree Benefits (Effect of One Percent Change in Assumed Health Care Rate) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]
Effect of one percentage point increase on total of service and interest cost	$0.20
Effect of one percentage point decrease on total of service and interest cost	-0.1
Effect of one percentage point increase on post-retirement benefit obligation	1.3
Effect of one percentage point decrease on post-retirement benefit obligation	($1.10)

Recovered_Sheet2

Pension and Other Retiree Benefits (Weighted Average Asset Allocation) (Details)	Dec. 31, 2014		Dec. 31, 2013
U.S.
Defined Benefit Plan Disclosure [Line Items]
Weighted average asset allocations	100.00%		100.00%
U.S. | Equity securities
Defined Benefit Plan Disclosure [Line Items]
Weighted average asset allocations	62.00%		62.00%
U.S. | Fixed income
Defined Benefit Plan Disclosure [Line Items]
Weighted average asset allocations	31.00%		31.00%
U.S. | Real estate
Defined Benefit Plan Disclosure [Line Items]
Weighted average asset allocations	0.00%		0.00%
U.S. | Other
Defined Benefit Plan Disclosure [Line Items]
Weighted average asset allocations	7.00%	[1]	7.00%	[1]
International
Defined Benefit Plan Disclosure [Line Items]
Weighted average asset allocations	100.00%		100.00%
International | Equity securities
Defined Benefit Plan Disclosure [Line Items]
Weighted average asset allocations	45.00%		48.00%
International | Fixed income
Defined Benefit Plan Disclosure [Line Items]
Weighted average asset allocations	38.00%		36.00%
International | Real estate
Defined Benefit Plan Disclosure [Line Items]
Weighted average asset allocations	3.00%		3.00%
International | Other
Defined Benefit Plan Disclosure [Line Items]
Weighted average asset allocations	14.00%	[1]	13.00%	[1]
[1]	Insurance contracts, multi-strategy hedge funds and cash and cash equivalents for certain of our plans.

Recovered_Sheet3

Pension and Other Retiree Benefits (Fair Value of Plan Assets) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
U.S.
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$163.90	$156.30	$135.40
U.S. | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	101.5	97.2
U.S. | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	62.4	59.1
U.S. | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. | Common stocks
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	8.3	9.4
U.S. | Common stocks | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	8.3	9.4
U.S. | Common stocks | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. | Common stocks | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. | Mutual funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	93.2	87.8
U.S. | Mutual funds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	93.2	87.8
U.S. | Mutual funds | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. | Mutual funds | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. | Common collective trust funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	8.9	7.5
U.S. | Common collective trust funds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. | Common collective trust funds | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	8.9	7.5
U.S. | Common collective trust funds | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. | Government debt securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2.2	6.2
U.S. | Government debt securities | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. | Government debt securities | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2.2	6.2
U.S. | Government debt securities | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. | Corporate debt securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	16.7	14.9
U.S. | Corporate debt securities | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. | Corporate debt securities | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	16.7	14.9
U.S. | Corporate debt securities | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. | Asset-backed securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	9.8	9.7
U.S. | Asset-backed securities | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. | Asset-backed securities | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	9.8	9.7
U.S. | Asset-backed securities | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. | Multi-strategy hedge funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	9.5	7.8
U.S. | Multi-strategy hedge funds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. | Multi-strategy hedge funds | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	9.5	7.8
U.S. | Multi-strategy hedge funds | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. | Government mortgage-backed securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	8	7.5
U.S. | Government mortgage-backed securities | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. | Government mortgage-backed securities | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	8	7.5
U.S. | Government mortgage-backed securities | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. | Collateralized mortgage obligations, mortgage backed securities, and other
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	7.3	5.5
U.S. | Collateralized mortgage obligations, mortgage backed securities, and other | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. | Collateralized mortgage obligations, mortgage backed securities, and other | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	7.3	5.5
U.S. | Collateralized mortgage obligations, mortgage backed securities, and other | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	351.2	342.8	311.9
International | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	162.8	169.9
International | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	187.5	171.9
International | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.9	1
International | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	6.1	2.2
International | Cash and cash equivalents | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	6.1	2.2
International | Cash and cash equivalents | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
International | Cash and cash equivalents | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
International | Mutual funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	156.7	167.7
International | Mutual funds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	156.7	167.7
International | Mutual funds | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
International | Mutual funds | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
International | Foreign corporate debt securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	118.6	110
International | Foreign corporate debt securities | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
International | Foreign corporate debt securities | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	118.6	110
International | Foreign corporate debt securities | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
International | Multi-strategy hedge funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	25.1	25.9
International | Multi-strategy hedge funds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
International | Multi-strategy hedge funds | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	25.1	25.9
International | Multi-strategy hedge funds | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
International | Insurance contracts
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	18.4	13.6
International | Insurance contracts | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
International | Insurance contracts | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	18.4	13.6
International | Insurance contracts | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
International | Other debt securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	12.1	10.6
International | Other debt securities | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
International | Other debt securities | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	12.1	10.6
International | Other debt securities | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
International | Real estate
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	10.6	10
International | Real estate | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
International | Real estate | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	9.7	9
International | Real estate | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.9	1
International | Foreign government debt securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3.6	2.8
International | Foreign government debt securities | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
International | Foreign government debt securities | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3.6	2.8
International | Foreign government debt securities | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$0	$0

Recovered_Sheet4

Pension and Other Retiree Benefits (Estimated Future Benefit Payments) (Details) (USD $)	Dec. 31, 2014
In Millions, unless otherwise specified
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
2015	$23.70
2016	24.3
2017	25
2018	25.9
2019	26.4
Years 2020 — 2024	137.5
Post-retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
2015	0.8
2016	0.8
2017	0.8
2018	0.8
2019	0.8
Years 2020 — 2024	$3.60

Recovered_Sheet5

Pension and Other Retiree Benefits (Narrative) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Pension and post-retirement benefit obligations	$100.50		$61.70
Accumulated benefit obligation	590		533.5
Employer contributions	12.4
Expected contributions to defined benefit plans for 2015	8.1
Costs related to defined contribution plans	8.6		8.4		8
U.S.
Defined Benefit Plan Disclosure [Line Items]
Pension and post-retirement benefit obligations	49	[1]	21.1	[1]
Employer contributions	6.2		8.1
U.S. | Equity securities
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations	65.00%
U.S. | Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations	20.00%
U.S. | Alternate assets
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations	15.00%
International
Defined Benefit Plan Disclosure [Line Items]
Pension and post-retirement benefit obligations	40.1	[1]	28.3	[1]
Employer contributions	$5.50		$6
Minimum
Defined Benefit Plan Disclosure [Line Items]
Payment of retirement benefits, commencement age for participants	60
Maximum
Defined Benefit Plan Disclosure [Line Items]
Payment of retirement benefits, commencement age for participants	65
[1]	Pension and post-retirement obligations of $100.5 million as of December 31, 2014, increased from $61.7 million as of December 31, 2013, due to lower discount rates compared to prior year assumptions and the adoption of new mortality tables for the U.S. and Canadian plans.

StockBased_Compensation_ShareB

Stock-Based Compensation (Share-Based Compensation Expense by Line Item) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	($15.70)	($16.40)	($9.20)
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense	-5.7	-5.9	-3.3
Allocated Share-based Compensation Expense, Net of Tax	-10	-10.5	-5.9
Advertising, selling, general and administrative expense
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	($15.70)	($16.40)	($9.20)

Recovered_Sheet6

Stock-Based Compensation (Share-based Compensation Expense) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$15.70	$16.40	$9.20
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	3.7	3	1.8
SSAR compensation expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	0	0	0.1
RSU compensation expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	6.6	5.5	3.9
PSU compensation expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$5.40	$7.90	$3.40

StockBased_Compensation_Unreco

Stock-Based Compensation (Unrecognized Compensation Expense) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Compensation Expense	$4.50
Weighted average years expense to be recognized over	1 year 8 months 27 days
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Compensation Expense	4.8
Weighted average years expense to be recognized over	1 year 8 months 6 days
PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Compensation Expense	$7
Weighted average years expense to be recognized over	1 year 7 months 14 days

StockBased_Compensation_Weight

Stock-Based Compensation (Weighted Average Assumptions) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Weighted average expected lives	4 years 6 months	4 years 6 months	4 years 6 months
Weighted average risk-free interest rate	1.33%	0.75%	0.75%
Weighted average expected volatility	52.20%	55.30%	55.70%
Expected dividend yield	0.00%	0.00%	0.00%
Weighted average grant date fair value	$2.69	$3.43	$5.41

StockBased_Compensation_Stock_

Stock-Based Compensation (Stock Option and SSARs Activity) (Details) (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2014
Stock Options and SSARs
Number Outstanding [Roll Forward]
Outstanding at December 31, 2013	4,806,475
Exercised	-593,731
Lapsed	-869,989
Outstanding at December 31, 2014	4,973,386
Weighted Average Exercise Price [Roll Forward]
Outstanding at December 31, 2013	$8.30
Exercised	$1.35
Lapsed	$19.18
Outstanding at December 31, 2014	$7.02
Outstanding at December 31, 2014, Weighted Average Remaining Contractual Term	4 years 2 months 21 days
Outstanding at December 31, 2014, Aggregate Intrinsic Value	$13
Options/SSARs vested or expected to vest, Number Outstanding	4,852,670
Options/SSARs vested or expected to vest, Weighted Average Exercise Price	$7.03
Options/SSARs vested or expected to vest, Weighted Average Remaining Contractual Term	4 years 2 months 26 days
Options/SSARs vested or expected to vest, Aggregate Intrinsic Value	12.7
Exercisable shares at December 31, 2014	2,427,221
Exercisable shares at December 31, 2014, Weighted Average Exercise Price	$7.03
Exercisable shares at December 31, 2014, Weighted Average Contractual Term	2 years 7 months 21 days
Exercisable shares at December 31, 2014, Aggregate Intrinsic Value	$7.30
Stock Options
Number Outstanding [Roll Forward]
Granted	1,630,631
Weighted Average Exercise Price [Roll Forward]
Granted	$6.14

StockBased_Compensation_Stock_1

Stock-Based Compensation (Stock Units Rollforward) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013	Dec. 31, 2012
PSUs
Stock Units [Roll Forward]
Outstanding at December 31, 2013	2,294,792
Granted	1,316,867		1,174,465	864,838
Vested and distributed	-496,926		-419,205	-3,119
Forfeited	-136,411
Other - decrease due to performance of PSU's	-141,160
Outstanding at December 31, 2014	2,837,162		2,294,792
Weighted Average Grant Date Fair Value [Roll Forward]
Outstanding at December 31, 2013, Weighted Average Grant Date Fair Value	$7.94
Granted, Weighted Average Grant Date Fair Value	$6.14		$7.59	$8.53
Vested and Distributed, Weighted Average Grant Date Fair Value	$8.91
Forfeited, Weighted Average Grant Date Fair Value	$7.04
Other decrease due to performance of PSU's, Weighted Average Grant Date Fair Value	$6.39
Outstanding at December 31, 2014, Weighted Average Grant Date Fair Value	$7.37		$7.94
RSUs
Stock Units [Roll Forward]
Outstanding at December 31, 2013	2,021,123
Granted	881,554		791,349	671,941
Vested and distributed	-321,697
Vested and deferred distributed	-43,428
Forfeited	-106,869
Outstanding at December 31, 2014	2,430,683		2,021,123
Vested and deferred RSUs related to deferred compensation for non-employee directors	175,504	[1]
Weighted Average Grant Date Fair Value [Roll Forward]
Outstanding at December 31, 2013, Weighted Average Grant Date Fair Value	$8.95
Granted, Weighted Average Grant Date Fair Value	$6.12		$7.14	$10.98
Vested and Distributed, Weighted Average Grant Date Fair Value	$8.45
Vested and deferred distributed	$8.29
Forfeited, Weighted Average Grant Date Fair Value	$8.61
Outstanding at December 31, 2014, Weighted Average Grant Date Fair Value	$8.02		$8.95
Weighted Average Grant Date Fair Value of Vested and Deferred RSUs	$7.98
[1]	Included in outstanding at December 31, 2014. Vested and deferred RSUs are primarily related to deferred compensation for non-employee directors.

StockBased_Compensation_Narrat

Stock-Based Compensation (Narrative) (Details) (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
	plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of share-based compensation plans	1
Number of shares authorized	15,665,000
Share-based compensation expense	$15.70	$16.40	$9.20
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Peer volatility rate		25.00%	50.00%
Historic volatility	100.00%	75.00%	50.00%
Proceeds from stock options exercised	0.3		0.2
Unrecognized compensation expense	4.5
Weighted average years expense to be recognized over	1 year 8 months 27 days
Share-based compensation expense	3.7	3	1.8
SSARs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate intrinsic value of options exercised	3.6	0.7	2.5
Share-based compensation expense	0	0	0.1
Stock Options and SSARs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Fair value of stock awards vested	3.2	1.9	1
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense	4.8
Weighted average years expense to be recognized over	1 year 8 months 6 days
Share-based compensation expense	6.6	5.5	3.9
Shares outstanding	2,430,683	2,021,123
Weighted average grant date fair value	$6.12	$7.14	$10.98
Fair value of stock awards vested	3.2	1	5.9
RSUs | Non-employee directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	0.8	0.9	0.9
PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense	7
Weighted average years expense to be recognized over	1 year 7 months 14 days
Share-based compensation expense	5.4	7.9	3.4
Shares outstanding	2,837,162	2,294,792
Weighted average grant date fair value	$6.14	$7.59	$8.53
Fair value of stock awards vested	$4.40	$3
Minimum | RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Minimum | PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Percentage awarded	0.00%
Maximum | Stock Options and SSARs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise period	7 years
Maximum | RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	4 years
Maximum | PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage awarded	150.00%

Inventories_Details

Inventories (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Inventory Disclosure [Abstract]
Raw materials	$36.70	$36.10
Work in process	2	2.4
Finished goods	191.2	216.2
Total inventories	$229.90	$254.70

Property_Plant_and_Equipment_D

Property, Plant and Equipment (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$547.70		$548.50
Less: accumulated depreciation	-312.2		-295.2
Property, plant and equipment, net	235.5	[1]	253.3	[1]
Computer software included in net property, plant and equipment	32.6		37
Amortization of software costs	7.4		6.7		8.4
Land and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment	21.5		23.3
Building and improvements to leaseholds
Property, Plant and Equipment [Line Items]
Property, plant and equipment	129		133.3
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment	374.2		352.4
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$23		$39.50
[1]	Net property, plant and equipment as of December 31, 2014 and 2013 contained $37.0 million and $32.6 million of computer software assets, which are classified within machinery and equipment and construction in progress. Amortization of software costs was $7.4 million, $6.7 million and $8.4 million for the years ended December 31, 2014, 2013 and 2012, respectively.

Goodwill_and_Identifiable_Inta2

Goodwill and Identifiable Intangibles (Goodwill) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Jun. 30, 2014
Goodwill [Roll Forward]
Beginning Balance	$568.30	$589.40
Mead C&OP acquisition		1.9
Translation	-23.4	-23
Ending Balance	544.9	568.3
Goodwill, Impaired, Accumulated Impairment Loss
Goodwill	760
Accumulated impairment losses	-215.1
Goodwill	544.9	568.3
ACCO Brands North America
Goodwill [Roll Forward]
Beginning Balance	393.1	396.3
Mead C&OP acquisition		1.4
Translation	-5.5	-4.6
Ending Balance	387.6	393.1
Goodwill, Impaired, Accumulated Impairment Loss
Goodwill	518.5
Accumulated impairment losses	-130.9
Goodwill	387.6	393.1
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount			13.00%
Fair Value Inputs, Discount Rate	9.00%
ACCO Brands North America | Minimum
Goodwill, Impaired, Accumulated Impairment Loss
Fair Value Inputs, Long-term Revenue Growth Rate	-1.40%
ACCO Brands North America | Maximum
Goodwill, Impaired, Accumulated Impairment Loss
Fair Value Inputs, Long-term Revenue Growth Rate	0.20%
ACCO Brands International
Goodwill [Roll Forward]
Beginning Balance	168.4	186.3
Mead C&OP acquisition		0.5
Translation	-17.9	-18.4
Ending Balance	150.5	168.4
Goodwill, Impaired, Accumulated Impairment Loss
Goodwill	234.7
Accumulated impairment losses	-84.2
Goodwill	150.5	168.4
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount			52.00%
Fair Value Inputs, Discount Rate	10.50%
ACCO Brands International | Minimum
Goodwill, Impaired, Accumulated Impairment Loss
Fair Value Inputs, Long-term Revenue Growth Rate	3.20%
ACCO Brands International | Maximum
Goodwill, Impaired, Accumulated Impairment Loss
Fair Value Inputs, Long-term Revenue Growth Rate	4.40%
Computer Products Group
Goodwill [Roll Forward]
Beginning Balance	6.8	6.8
Mead C&OP acquisition		0
Translation	0	0
Ending Balance	6.8	6.8
Goodwill, Impaired, Accumulated Impairment Loss
Goodwill	6.8
Accumulated impairment losses	0
Goodwill	$6.80	$6.80
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount			33.00%
Fair Value Inputs, Discount Rate	10.00%
Computer Products Group | Minimum
Goodwill, Impaired, Accumulated Impairment Loss
Fair Value Inputs, Long-term Revenue Growth Rate	-3.50%
Computer Products Group | Maximum
Goodwill, Impaired, Accumulated Impairment Loss
Fair Value Inputs, Long-term Revenue Growth Rate	2.50%

Goodwill_and_Identifiable_Inta3

Goodwill and Identifiable Intangibles (Intangible Assets) (Details) (USD $)	Dec. 31, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Intangible Assets [Line Items]
Amortizable intangible assets, Gross Carrying Amounts	$238.30		$244.30
Amortizable intangible assets, Accumulated Amortization	-121.8		-103.3
Amortizable intangible assets, Net Book Value	116.5		141
Total identifiable intangibles, Gross Carrying Amounts	737.7		754.8
Total identifiable intangibles, Accumulated Amortization	-166.3		-147.8
Total identifiable intangibles, Net Book Value	571.4		607
Trade Names
Intangible Assets [Line Items]
Amortizable intangible assets, Gross Carrying Amounts	127.7		131.3
Amortizable intangible assets, Accumulated Amortization	-55.5		-47.5
Amortizable intangible assets, Net Book Value	72.2		83.8
Customer and contractual relationships
Intangible Assets [Line Items]
Amortizable intangible assets, Gross Carrying Amounts	100.4		102.7
Amortizable intangible assets, Accumulated Amortization	-57.2		-46.4
Amortizable intangible assets, Net Book Value	43.2		56.3
Patents/proprietary technology
Intangible Assets [Line Items]
Amortizable intangible assets, Gross Carrying Amounts	10.2		10.3
Amortizable intangible assets, Accumulated Amortization	-9.1		-9.4
Amortizable intangible assets, Net Book Value	1.1		0.9
Trade Names
Intangible Assets [Line Items]
Indefinite-lived intangible assets, gross carrying amount	499.4		510.5
Indefinite-lived intangible assets, Accumulated Amortization	-44.5	[1]	-44.5	[1]
Indefinite-lived intangible assets, Net Book Value	$454.90		$466
[1]	Accumulated amortization prior to the adoption of authoritative guidance on goodwill and other intangible assets, at which time further amortization ceased.

Recovered_Sheet7

Goodwill And Identifiable Intangibles (Estimated Amortization Expense) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of intangibles	$22.20	$24.70	$19.90
Estimated amortization expense, 2015	19.8
Estimated amortization expense, 2016	17.4
Estimated amortization expense, 2017	14.2
Estimated amortization expense, 2018	12
Estimated amortization expense, 2019	$9.90

Restructuring_Restructuring_Ch

Restructuring (Restructuring Charges and Reconciliation) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Restructuring Reserve [Roll Forward]
Balance at beginning of period	$20.50	$15.40	$1.20
Provision/(income)	5.5	30.1	24.3
(Cash expenditures)/Proceeds	-16.9	-23.3	-10
Non-cash Items/ Currency Change	-0.7	-1.7	-0.1
Balance at end of period	8.4	20.5	15.4
Employee termination costs
Restructuring Reserve [Roll Forward]
Balance at beginning of period	19.1	15.2	0.3
Provision/(income)	4.3	26.4	24
(Cash expenditures)/Proceeds	-15.3	-22.5	-9.2
Non-cash Items/ Currency Change	-0.3	0	0.1
Balance at end of period	7.8	19.1	15.2
Period over which restructuring and related costs are to be paid	12 months
Termination of lease agreements
Restructuring Reserve [Roll Forward]
Balance at beginning of period	1.4	0.2	0.7
Provision/(income)	0.5	1.9	-0.1
(Cash expenditures)/Proceeds	-1.5	-0.7	-0.4
Non-cash Items/ Currency Change	0.2	0	0
Balance at end of period	0.6	1.4	0.2
Period over which restructuring and related costs are to be paid	12 months
Asset impairment/net loss on disposal of assets resulting from restructuring activities
Restructuring Reserve [Roll Forward]
Balance at beginning of period	0	0	0.2
Provision/(income)	0.6	1.2	0.3
(Cash expenditures)/Proceeds	0	0.5	-0.3
Non-cash Items/ Currency Change	-0.6	-1.7	-0.2
Balance at end of period	0	0	0
Other
Restructuring Reserve [Roll Forward]
Balance at beginning of period	0	0	0
Provision/(income)	0.1	0.6	0.1
(Cash expenditures)/Proceeds	-0.1	-0.6	-0.1
Non-cash Items/ Currency Change	0	0	0
Balance at end of period	0	0	0
Buildings
Restructuring Cost and Reserve [Line Items]
Net gain on sale of facility		2.5
Net cash proceeds from sale	3.2	3.8
Manufacturing Facility
Restructuring Cost and Reserve [Line Items]
Net gain on sale of facility			0.1
Net cash proceeds from sale			$2.70

Income_Taxes_Components_of_Inc

Income Taxes (Components of Income Before Taxes) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating Loss Carryforwards [Line Items]
Domestic operations	$43.50	$1.80	($94.90)
Foreign operations	93.5	89.9	90.5
Income (loss) from continuing operations before income tax	$137	$91.70	($4.40)

Income_Taxes_Effective_Income_

Income Taxes (Effective Income Tax Rate Reconciliation) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]
Income tax at U.S. statutory rate of 35%	$47.90	$32.10	($1.50)
State, local and other tax net of federal benefit	2.1	-1.4	-0.6
U.S. effect of foreign dividends and earnings	7.4	7.5	23.7
Unrealized foreign currency loss on intercompany debt	-3	-3.5	-7.7
Foreign income taxed at a lower effective rate	-8.6	-6.4	-7.2
Expiration of tax credits	11.7	0	0
Decrease in valuation allowances	-11.5	-11.6	-145.1
U.S. effect of capital gain	0	0	11
Correction of deferred tax error	0	-3.1	0.8
Change in prior year tax estimates and other	-0.6	0.8	5.2
Income tax expense (benefit)	$45.40	$14.40	($121.40)
Effective income tax rate	33.10%	15.70%

Income_Taxes_Components_of_Inc1

Income Taxes (Components of Income Tax) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Current expense
Federal and other	$1.60	$0.80	$6
Foreign	23.2	25.3	27.1
Total current income tax expense	24.8	26.1	33.1
Deferred (benefit) expense
Federal and other	15.4	-2.8	-129.5
Foreign	5.2	-8.9	-25
Total deferred income tax expense (benefit)	20.6	-11.7	-154.5
Income tax expense (benefit)	$45.40	$14.40	($121.40)

Income_Taxes_Components_of_Def

Income Taxes (Components of Deferred Tax Assets (Liabilities)) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Deferred tax assets
Compensation and benefits	$20.40	$23.80	[1]
Pension	32	19.1	[1]
Inventory	7.1	2.6	[1]
Other reserves	19.8	20.3	[1]
Accounts receivable	7.6	7.4	[1]
Foreign tax credit carryforwards	11.9	20.5	[1]
Net operating loss carryforwards	87.5	114.6	[1]
Unrealized foreign currency loss on intercompany debt	3.2	0.1	[1]
Other	8.8	6.9	[1]
Gross deferred income tax assets	198.3	215.3	[1]
Valuation allowance	-23.9	-33
Net deferred tax assets	174.4	182.3
Deferred tax liabilities
Depreciation	-19.1	-21.1
Identifiable intangible	-256.6	-259.5
Gross deferred tax liabilities	-275.7	-280.6
Net deferred tax liabilities	($101.30)	($98.30)
[1]	Certain adjustments to the classifications of deferred tax balances at December 31, 2013 were made to conform to current year classifications. The adjustments do not impact the total net deferred tax liability.

Income_Taxes_Unrecognized_Tax_

Income Taxes (Unrecognized Tax Benefits) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at beginning of year	$52.10	$56.30	$5.50
Additions for tax positions of prior years	3.5	2.4	2
Reductions for tax positions of prior years	-4.2	0	-1.5
Settlements	0	-0.1	0
Mead C&OP Acquisition	0	0	50.3
Foreign exchange changes	-5.5	-6.5	0
Balance at end of year	$45.90	$52.10	$56.30

Income_Taxes_Narrative_Details

Income Taxes (Narrative) (Details)

12 Months Ended

12 Months Ended

1 Months Ended

12 Months Ended

3 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2014

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2012

USD ($)

USD ($)

USD ($)

USD ($)

Domestic Tax Authority

Domestic Tax Authority

Foreign Tax Authority [Member]

Foreign Tax Authority [Member]

Foreign Tax Authority [Member]

Foreign Tax Authority [Member]

Foreign Tax Authority [Member]

Minimum

Maximum

Tax Years 2007-2012

USD ($)

USD ($)

USD ($)

BRL

USD ($)

USD ($)

USD ($)

Foreign Tax Authority [Member]

USD ($)

Valuation Allowance [Line Items]

Income tax expense (benefit)

$45.40

$14.40

($121.40)

Income (loss) from continuing operations before income tax

137

91.7

-4.4

Correction of deferred tax error

0

-3.1

0.8

Effective tax rate

33.10%

15.70%

Expiration of tax credits

11.7

0

0

Change in deferred tax asset

145.1

-11.7

126.1

0.2

11.6

19

Effective tax rate, discontinued operations

35.00%

25.60%

Statutes of limitation, period

2 years

5 years

Operating loss carryforwards

257.5

Undistributed earnings of foreign subsidiaries

565

549

Unrecognized tax benefits, income tax penalties and interest accrued

7

Unrecognized tax benefits

45.9

52.1

56.3

5.5

Unrecognized tax benefits that would impact effective tax rate

44.2

Potential tax assessment

38.7

102.7

44.5

Potential tax assessment, accrued reserve related to fair value of liabilities acquired

43.3

Unrecognized Tax Benefits, Interest on Income Taxes Expense

$3.20

$1.80

$1.20

Earnings_Per_Share_Details

Earnings Per Share (Details)	12 Months Ended			0 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	1-May-12
Weighted Average Number of Shares Outstanding Basic and Diluted [Line Items]
Common stock, shares, outstanding	111,911,290	113,663,856		113,100,000
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted-average number of common shares outstanding - basic	113,700,000	113,500,000	94,100,000
Adjusted weighted average shares and assumed conversions - diluted	116,300,000	115,700,000	96,100,000
Potentially dilutive shares excluded from computation of dilutive earnings per share	4,300,000	4,900,000	5,400,000
Common stock repurchases	2,755,642
Stock Options
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Incremental common shares attributable to share-based payment arrangements	100,000	0	100,000
SSARs
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Incremental common shares attributable to share-based payment arrangements	600,000	900,000	900,000
Restricted stock units
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Incremental common shares attributable to share-based payment arrangements	1,900,000	1,300,000	1,000,000
Common Stock
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Common stock repurchases	2,755,642
Common Stock | Mead Consumer and Office Products Business [Member]
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Number of shares issued to MWV shareholders				57,100,000

Derivative_Financial_Instrumen2

Derivative Financial Instruments (Narrative) (Details) (Foreign exchange contracts, USD $)	Dec. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Derivatives not designated as hedging instruments
Derivative [Line Items]
Notional Amount of Foreign Currency Cash Flow Hedge Derivatives	$55.80	$55.50
Cash Flow Hedging [Member] | Derivatives designated as hedging instruments
Derivative [Line Items]
Notional Amount of Foreign Currency Cash Flow Hedge Derivatives	$68.40	$88.70

Derivative_Financial_Instrumen3

Derivative Financial Instruments (Fair Value of Derivative Instruments) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Derivatives, Fair Value [Line Items]
Derivative Assets	$4.70	$1.80
Derivative Liabilities	0.5	0.9
Foreign exchange contracts | Derivatives designated as hedging instruments | Other current assets
Derivatives, Fair Value [Line Items]
Derivative Assets	4.6	1.4
Foreign exchange contracts | Derivatives designated as hedging instruments | Other current liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	0.1	0.8
Foreign exchange contracts | Derivatives not designated as hedging instruments | Other current assets
Derivatives, Fair Value [Line Items]
Derivative Assets	0.1	0.4
Foreign exchange contracts | Derivatives not designated as hedging instruments | Other current liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	$0.40	$0.10

Derivative_Financial_Instrumen4

Derivative Financial Instruments (Effect of Derivative Instruments) (Details) (Foreign exchange contracts, USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in OCI (Effective Portion)	$6.90	$3.70	($0.20)
Cost of products sold
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Gain) Loss Reclassified from OCI (Effective Portion)	-3.5	-3.4	-1.9
Derivatives not designated as hedging instruments | Other expense, net
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Gain) Loss Recognized in Income	$1.30	($0.60)	$2.30

Fair_Value_Of_Financial_Instru2

Fair Value Of Financial Instruments (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Assets:
Forward currency contracts	$4.70	$1.80
Liabilities:
Forward currency contracts	0.5	0.9
Total debt	800.7	920.9
Estimated fair value of total debt	$831.90	$912.20

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income (Loss) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	($185.60)		($156.10)
Other comprehensive income (loss) before reclassifications, net of tax	-108.6		-34.6
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	1.6		5.1
Ending Balance	-292.6		-185.6		-156.1
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) [Abstract]
Cost of products sold	-1,159.30		-1,217.20		-1,221.40
Amortization of actuarial loss included in net income	6		11.4		7.2
Amortization of prior service cost included in net income	0.3		0.1		0
Income tax expense (benefit)	-45.4		-14.4		121.4
Derivative Financial Instruments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	0.3		0.1
Other comprehensive income (loss) before reclassifications, net of tax	4.9		2.6
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	-2.5		-2.4
Ending Balance	2.7		0.3
Foreign Currency Adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	-89.6		-28
Other comprehensive income (loss) before reclassifications, net of tax	-76.4		-61.6
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	0		0
Ending Balance	-166		-89.6
Unrecognized Pension and Other Post-retirement Benefit Costs
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	-96.3		-128.2
Other comprehensive income (loss) before reclassifications, net of tax	-37.1		24.4
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	4.1		7.5
Ending Balance	-129.3		-96.3
Amount of (Gain) Loss Reclassified from Accumulated Other Comprehensive Income (Loss)
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) [Abstract]
Net of tax	1.6		5.1
Amount of (Gain) Loss Reclassified from Accumulated Other Comprehensive Income (Loss) | Derivative Financial Instruments
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) [Abstract]
Total before tax	-3.5		-3.4
Income tax expense (benefit)	1		1
Net of tax	-2.5		-2.4
Amount of (Gain) Loss Reclassified from Accumulated Other Comprehensive Income (Loss) | Unrecognized Pension and Other Post-retirement Benefit Costs
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) [Abstract]
Amortization of actuarial loss included in net income	6	[1]	11.4	[1]
Amortization of prior service cost included in net income	0.3	[1]	0.1	[1]
Total before tax	6.3		11.5
Income tax expense (benefit)	-2.2		-4
Net of tax	4.1		7.5
Foreign exchange contracts | Amount of (Gain) Loss Reclassified from Accumulated Other Comprehensive Income (Loss) | Derivative Financial Instruments
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) [Abstract]
Cost of products sold	($3.50)		($3.40)
[1]	This accumulated other comprehensive income component is included in the computation of net periodic benefit cost (income)for pension and post-retirement plans (See "Note 5. Pension and Other Retiree Benefits" for additional details)

Information_on_Business_Segmen2

Information on Business Segments (Net Sales by Segment) (Details) (USD $)

3 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2014

Sep. 30, 2014

Jun. 30, 2014

Mar. 31, 2014

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2012

Segment Reporting Information [Line Items]

Net sales

$459.90

[1]

$472.20

[1]

$427.70

[1]

$329.40

[1]

$503.70

[1]

$469.20

[1]

$440.20

[1]

$352

[1]

$1,689.20

$1,765.10

$1,758.50

ACCO Brands North America

Segment Reporting Information [Line Items]

Net sales

1,006

1,041.40

1,028.20

ACCO Brands International

Segment Reporting Information [Line Items]

Net sales

546.9

566.6

551.2

Computer Products Group

Segment Reporting Information [Line Items]

Net sales

$136.30

$157.10

$179.10

[1]

Historically, our business has experienced higher sales in the third and fourth quarters of the calendar year. Two principal factors contribute to this seasonality: (1) the office products industry, its customers and ACCO Brands specifically are major suppliers of products related to the "back-to-school" season, which occurs principally from June through September for our North American business and from November through February for our Australian and Brazilian businesses; and (2) several products we sell lend themselves to calendar year-end purchase timing, including AT-A-GLANCE® and Day-Timer® planners, paper organization and storage products (including bindery) and Kensington computer accessories, which have higher sales in the fourth quarter driven by traditionally strong fourth-quarter sales of personal computers and tablets.

Information_on_Business_Segmen3

Information on Business Segments (Operating Income by Segment) (Details) (USD $)	3 Months Ended								12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Segment Reporting Information [Line Items]
Operating income	$68.50	$61.80	$43.90	($0.60)	$66.80	$50.30	$37.90	($9.20)	$173.60	[1]	$145.80	[1]	$139.30	[1]
Interest expense									49.5		59		91.3
Interest Income									5.6		4.3		2
Equity in earnings of joint ventures									-8.1		-8.2		-6.9
Other expense, net									0.8		7.6		61.3
Income (loss) from continuing operations before income tax									137		91.7		-4.4
Corporate
Segment Reporting Information [Line Items]
Operating income									-38.2		-32.6		-44.8
Segment operating income
Segment Reporting Information [Line Items]
Operating income									211.8	[1]	178.4	[1]	184.1	[1]
ACCO Brands North America
Segment Reporting Information [Line Items]
Operating income									140.7		98.2		86.2
ACCO Brands International
Segment Reporting Information [Line Items]
Operating income									62.9		66.5		62
Computer Products Group
Segment Reporting Information [Line Items]
Operating income									$8.20		$13.70		$35.90
[1]	Operating income as presented in the segment table above is defined as i) net sales; ii) less cost of products sold; iii) less advertising, selling, general and administrative expenses; iv) less amortization of intangibles; and v) less restructuring charges.

Information_on_Business_Segmen4

Information on Business Segments (Assets by Segment) (Details) (USD $)	Dec. 31, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Segment Reporting Information [Line Items]
Assets	$2,226.40		$2,382.90
Corporate
Segment Reporting Information [Line Items]
Assets	1.4	[1]	1	[1]
Total segment assets
Segment Reporting Information [Line Items]
Assets	925.8		1,017.60
ACCO Brands North America
Segment Reporting Information [Line Items]
Assets	433.7	[1]	465.4	[1]
ACCO Brands International
Segment Reporting Information [Line Items]
Assets	429.7	[1]	464.1	[1]
Computer Products Group
Segment Reporting Information [Line Items]
Assets	62.4	[1]	88.1	[1]
Unallocated Assets
Segment Reporting Information [Line Items]
Assets	$1,299.20		$1,364.30
[1]	Represents total assets, excluding: goodwill and identifiable intangibles resulting from business acquisitions, intercompany balances, cash, deferred taxes, prepaid pension assets, prepaid debt issuance costs and joint ventures accounted for on an equity basis.

Information_on_Business_Segmen5

Information on Business Segments (Identifiable Intangibles and Goodwill by Segment) (Details) (USD $)	Dec. 31, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Segment Reporting Information [Line Items]
Assets Including Allocation of Identifiable Intangible Assets and Goodwill	$2,226.40		$2,382.90
Corporate
Segment Reporting Information [Line Items]
Assets Including Allocation of Identifiable Intangible Assets and Goodwill	1.4	[1]	1	[1]
Total segment assets
Segment Reporting Information [Line Items]
Assets Including Allocation of Identifiable Intangible Assets and Goodwill	2,042.10		2,192.80
ACCO Brands North America
Segment Reporting Information [Line Items]
Assets Including Allocation of Identifiable Intangible Assets and Goodwill	1,272.40	[1]	1,332	[1]
ACCO Brands International
Segment Reporting Information [Line Items]
Assets Including Allocation of Identifiable Intangible Assets and Goodwill	692.7	[1]	758.4	[1]
Computer Products Group
Segment Reporting Information [Line Items]
Assets Including Allocation of Identifiable Intangible Assets and Goodwill	77	[1]	102.4	[1]
Unallocated Assets
Segment Reporting Information [Line Items]
Assets Including Allocation of Identifiable Intangible Assets and Goodwill	$182.90		$189.10
[1]	Represents total assets, excluding: intercompany balances, cash, deferred taxes, prepaid pension assets, prepaid debt issuance costs and joint ventures accounted for on an equity basis.

Information_on_Business_Segmen6

Information on Business Segments (Property, Plant and Equipment by Country) (Details) (USD $)	Dec. 31, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Segment Reporting Information [Line Items]
Property, plant and equipment, net	$235.50	[1]	$253.30	[1]
U.S.
Segment Reporting Information [Line Items]
Property, plant and equipment, net	122		134.4
Brazil
Segment Reporting Information [Line Items]
Property, plant and equipment, net	49.3		54.7
U.K.
Segment Reporting Information [Line Items]
Property, plant and equipment, net	34.1		30.5
Australia
Segment Reporting Information [Line Items]
Property, plant and equipment, net	12		13.7
Other countries
Segment Reporting Information [Line Items]
Property, plant and equipment, net	$18.10		$20
[1]	Net property, plant and equipment as of December 31, 2014 and 2013 contained $37.0 million and $32.6 million of computer software assets, which are classified within machinery and equipment and construction in progress. Amortization of software costs was $7.4 million, $6.7 million and $8.4 million for the years ended December 31, 2014, 2013 and 2012, respectively.

Information_on_Business_Segmen7

Information on Business Segments (Revenue by Country) (Details) (USD $)

3 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2014

Sep. 30, 2014

Jun. 30, 2014

Mar. 31, 2014

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2012

Segment Reporting Information [Line Items]

Net sales

$459.90

[1]

$472.20

[1]

$427.70

[1]

$329.40

[1]

$503.70

[1]

$469.20

[1]

$440.20

[1]

$352

[1]

$1,689.20

$1,765.10

$1,758.50

U.S.

Segment Reporting Information [Line Items]

Net sales

921

[2]

955.5

[2]

959.2

[2]

Brazil

Segment Reporting Information [Line Items]

Net sales

154

[2]

157.2

[2]

118.9

[2]

Canada

Segment Reporting Information [Line Items]

Net sales

150.6

[2]

159.7

[2]

160.8

[2]

Netherlands

Segment Reporting Information [Line Items]

Net sales

130.2

[2]

130.2

[2]

45.9

[2]

Australia

Segment Reporting Information [Line Items]

Net sales

108.5

[2]

119.8

[2]

133.4

[2]

U.K.

Segment Reporting Information [Line Items]

Net sales

89.1

[2]

101.3

[2]

98

[2]

Mexico

Segment Reporting Information [Line Items]

Net sales

58.8

[2]

58.9

[2]

59.2

[2]

Other countries

Segment Reporting Information [Line Items]

Net sales

$77

[2]

$82.50

[2]

$183.10

[2]

[1]

Historically, our business has experienced higher sales in the third and fourth quarters of the calendar year. Two principal factors contribute to this seasonality: (1) the office products industry, its customers and ACCO Brands specifically are major suppliers of products related to the "back-to-school" season, which occurs principally from June through September for our North American business and from November through February for our Australian and Brazilian businesses; and (2) several products we sell lend themselves to calendar year-end purchase timing, including AT-A-GLANCE® and Day-Timer® planners, paper organization and storage products (including bindery) and Kensington computer accessories, which have higher sales in the fourth quarter driven by traditionally strong fourth-quarter sales of personal computers and tablets.

[2]

Net sales are attributed to geographic areas based on the location of the selling company.

Information_on_Business_Segmen8

Information on Business Segments (Narrative) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
	customer
Segment Reporting Information [Line Items]
Number of Operating Segments	3
Concentration risk, number of customers	5
Concentration risk, sales	$706	$680.50	$716.20
Concentration risk, trade account receivable	144.2	194
Sales | Staples
Segment Reporting Information [Line Items]
Concentration risk, sales	224.1	229.5	236.3
Concentration risk, percentage	13.00%	13.00%	13.00%
Sales | Office Depot
Segment Reporting Information [Line Items]
Concentration risk, sales	$190.90
Concentration risk, percentage	11.00%

Joint_Venture_Investments_Deta

Joint Venture Investments (Details) (Pelikan Artline Pty Ltd, USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Pelikan Artline Pty Ltd
Schedule of Equity Method Investments [Line Items]
Net sales	$121.40	$105.40	$116.60
Gross profit	48.2	44.8	47.9
Operating income	23.6	23	24.7
Net income	16.4	16.4	17.3
Current assets	83.4	71.8
Non-current assets	47.3	32.5
Current liabilities	40.7	32.1
Non-current liabilities	$22	$4.90

Commitments_and_Contingencies_1

Commitments and Contingencies (Future Minimum Lease Payments) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2015	$23
2016	20
2017	16.3
2018	14
2019	12.9
Thereafter	35
Total minimum rental payments	121.2
Less minimum rentals to be received under non-cancelable subleases	5.3
Operating Leases Future Minimum Payments Net of Sublease Rental Income	115.9
Total rental expense	$23.10	$25.30	$22.30

Commitments_and_Contingencies_2

Commitments and Contingencies (Purchase Commitments) (Details) (USD $)	Dec. 31, 2014
In Millions, unless otherwise specified
Commitments and Contingencies Disclosure [Abstract]
2015	$74
2016	10.7
2017	10.5
2018	2.4
2019	0
Thereafter	0
Total unconditional purchase commitments	$97.60

Discontinued_Operations_Detail

Discontinued Operations (Details) (USD $)	3 Months Ended																12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2014		Sep. 30, 2014		Jun. 30, 2014		Mar. 31, 2014		Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating Results:
Loss on sale before income taxes																	$0	($0.30)	($2.10)
Income tax benefit																	0	-0.1	-0.5
Loss from discontinued operations																	0	-0.2	-1.6
Per share:
Loss from discontinued operations	$0	[1]	$0	[1]	$0	[1]	$0	[1]	$0	[1]	$0	[1]	$0	[1]	$0	[1]	$0	$0	($0.02)
Loss from discontinued operations	$0	[1]	$0	[1]	$0	[1]	$0	[1]	$0	[1]	$0	[1]	$0	[1]	$0	[1]	$0	$0	($0.02)
Commercial Print Finishing Business
Per share:
Additional legal settlement costs																		0.2	2
Liabilities of discontinued operations									$1.20									$1.20
[1]	The sum of the quarterly earnings per share amounts may not equal the total for the year due to the effects of rounding and dilution as a result of issuing common shares and repurchasing of common shares during the year.

Quarterly_Financial_Informatio2

Quarterly Financial Information (Unaudited) (Details) (USD $)	3 Months Ended																12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2014		Sep. 30, 2014		Jun. 30, 2014		Mar. 31, 2014		Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Quarterly Financial Information Disclosure [Abstract]
Net sales	$459.90	[1]	$472.20	[1]	$427.70	[1]	$329.40	[1]	$503.70	[1]	$469.20	[1]	$440.20	[1]	$352	[1]	$1,689.20		$1,765.10		$1,758.50
Gross profit	156.9		153.3		131.2		88.5		170.1		142.3		138.3		97.2		529.9		547.9		537.1
Operating income (loss)	68.5		61.8		43.9		-0.6		66.8		50.3		37.9		-9.2		173.6	[2]	145.8	[2]	139.3	[2]
Income (loss) from continuing operations	43.9		34.2		21.3		-7.8		50.3		26.4		9.5		-8.9		91.6		77.3		117
Loss from discontinued operations, net of income taxes	0		0		0		0		-0.1		0		0		-0.1		0		-0.2		-1.6
Net income (loss)	$43.90		$34.20		$21.30		($7.80)		$50.20		$26.40		$9.50		($9)		$91.60		$77.10		$115.40
Basic income (loss) per share:
Income (loss) from continuing operations	$0.39	[3]	$0.30	[3]	$0.19	[3]	($0.07)	[3]	$0.44	[3]	$0.23	[3]	$0.08	[3]	($0.08)	[3]	$0.81		$0.68		$1.24
Loss from discontinued operations	$0	[3]	$0	[3]	$0	[3]	$0	[3]	$0	[3]	$0	[3]	$0	[3]	$0	[3]	$0		$0		($0.02)
Net income (loss)	$0.39	[3]	$0.30	[3]	$0.19	[3]	($0.07)	[3]	$0.44	[3]	$0.23	[3]	$0.08	[3]	($0.08)	[3]	$0.81		$0.68		$1.23
Diluted income (loss) per share:
Income (loss) from continuing operations	$0.38	[3]	$0.29	[3]	$0.18	[3]	($0.07)	[3]	$0.43	[3]	$0.23	[3]	$0.08	[3]	($0.08)	[3]	$0.79		$0.67		$1.22
Loss from discontinued operations	$0	[3]	$0	[3]	$0	[3]	$0	[3]	$0	[3]	$0	[3]	$0	[3]	$0	[3]	$0		$0		($0.02)
Net income (loss)	$0.38	[3]	$0.29	[3]	$0.18	[3]	($0.07)	[3]	$0.43	[3]	$0.23	[3]	$0.08	[3]	($0.08)	[3]	$0.79		$0.67		$1.20
[1]	Historically, our business has experienced higher sales in the third and fourth quarters of the calendar year. Two principal factors contribute to this seasonality: (1) the office products industry, its customers and ACCO Brands specifically are major suppliers of products related to the "back-to-school" season, which occurs principally from June through September for our North American business and from November through February for our Australian and Brazilian businesses; and (2) several products we sell lend themselves to calendar year-end purchase timing, including AT-A-GLANCE® and Day-Timer® planners, paper organization and storage products (including bindery) and Kensington computer accessories, which have higher sales in the fourth quarter driven by traditionally strong fourth-quarter sales of personal computers and tablets.
[2]	Operating income as presented in the segment table above is defined as i) net sales; ii) less cost of products sold; iii) less advertising, selling, general and administrative expenses; iv) less amortization of intangibles; and v) less restructuring charges.
[3]	The sum of the quarterly earnings per share amounts may not equal the total for the year due to the effects of rounding and dilution as a result of issuing common shares and repurchasing of common shares during the year.

Condensed_Consolidating_Financ2

Condensed Consolidating Financial Information Narrative (Details) (Senior Unsecured Notes, due April 2020 (fixed interest rate of 6.75%), Senior Notes)	Dec. 31, 2014
Senior Unsecured Notes, due April 2020 (fixed interest rate of 6.75%) | Senior Notes
Debt Instrument [Line Items]
Stated percentage	6.75%

Condensed_Consolidating_Financ3

Condensed Consolidating Financial Information (Condensed Consolidating Balance Sheets) (Details) (USD $)	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012	Dec. 31, 2011
In Millions, unless otherwise specified
Current assets:
Cash and cash equivalents	$53.20		$53.50		$50	$121.20
Accounts receivable, net	420.5		471.9
Inventories	229.9		254.7
Receivables from affiliates	0		0
Deferred income taxes	39.4		33.5
Other current assets	35.8		28.1
Total current assets	778.8		841.7
Property, plant and equipment, net	235.5	[1]	253.3	[1]
Deferred income taxes	31.7		37.3
Goodwill	544.9		568.3		589.4
Identifiable intangibles, net	571.4		607
Other non-current assets	64.1		75.3
Investment in, long term receivable from affiliates	0		0
Total assets	2,226.40		2,382.90
Current liabilities:
Notes payable	0.8		0
Current portion of long-term debt	0.8		0.1
Accounts payable	159.1		177.9
Accrued compensation	36.6		32
Accrued customer program liabilities	111.8		123.6
Accrued interest	6.5		7
Other current liabilities	79.8		104.5
Payables to affiliates	0		0
Total current liabilities	395.4		445.1
Long-term debt	799		920.8
Long-term notes payable to affiliates	0		0
Deferred income taxes	172.2		169.1
Pension and post-retirement benefit obligations	100.5		61.7
Other non-current liabilities	78.3		83.9
Total liabilities	1,545.40		1,680.60
Stockholders' equity:
Common stock	1.1		1.1
Treasury stock	-5.9		-3.5
Paid-in capital	2,031.50		2,035
Accumulated other comprehensive loss	-292.6		-185.6		-156.1
Accumulated deficit	-1,053.10		-1,144.70
Total stockholders' equity	681		702.3		639.2	-61.9
Total liabilities and stockholders' equity	2,226.40		2,382.90
Parent
Current assets:
Cash and cash equivalents	9.7		7		12.1	62
Accounts receivable, net	0		0
Inventories	0		0
Receivables from affiliates	4.8		8.2
Deferred income taxes	27.2		20.9
Other current assets	1.4		0.6
Total current assets	43.1		36.7
Property, plant and equipment, net	4.2		4.1
Deferred income taxes	0.9		0
Goodwill	0		0
Identifiable intangibles, net	57.5		57.6
Other non-current assets	15.2		20
Investment in, long term receivable from affiliates	1,680		1,818.20
Total assets	1,800.90		1,936.60
Current liabilities:
Notes payable	0
Current portion of long-term debt	0.7		0
Accounts payable	0		0
Accrued compensation	3.3		4.6
Accrued customer program liabilities	0		0
Accrued interest	6.5		7
Other current liabilities	1.9		3
Payables to affiliates	5.6		9.5
Total current liabilities	18		24.1
Long-term debt	799		920.7
Long-term notes payable to affiliates	178.2		178.3
Deferred income taxes	120		109.2
Pension and post-retirement benefit obligations	1.5		1.5
Other non-current liabilities	3.2		0.5
Total liabilities	1,119.90		1,234.30
Stockholders' equity:
Common stock	1.1		1.1
Treasury stock	-5.9		-3.5
Paid-in capital	2,031.50		2,035
Accumulated other comprehensive loss	-292.6		-185.6
Accumulated deficit	-1,053.10		-1,144.70
Total stockholders' equity	681		702.3
Total liabilities and stockholders' equity	1,800.90		1,936.60
Guarantors
Current assets:
Cash and cash equivalents	0.1		1		-3	-1.2
Accounts receivable, net	156.1		177.3
Inventories	129.9		124.8
Receivables from affiliates	302.7		101.5
Deferred income taxes	0		0
Other current assets	15.1		8.8
Total current assets	603.9		413.4
Property, plant and equipment, net	117.8		130.3
Deferred income taxes	0		0
Goodwill	330.9		330.9
Identifiable intangibles, net	397.9		415.4
Other non-current assets	1		6.2
Investment in, long term receivable from affiliates	890.8		868.4
Total assets	2,342.30		2,164.60
Current liabilities:
Notes payable	0
Current portion of long-term debt	0.1		0.1
Accounts payable	84.8		81.4
Accrued compensation	20.1		12.3
Accrued customer program liabilities	60.1		65.5
Accrued interest	0		0
Other current liabilities	31		39.1
Payables to affiliates	214.1		206.4
Total current liabilities	410.2		404.8
Long-term debt	0		0.1
Long-term notes payable to affiliates	26.7		26.7
Deferred income taxes	0		0
Pension and post-retirement benefit obligations	52.3		24.2
Other non-current liabilities	19.9		22
Total liabilities	509.1		477.8
Stockholders' equity:
Common stock	448		448.1
Treasury stock	0		0
Paid-in capital	1,551.10		1,551.20
Accumulated other comprehensive loss	-65.2		-45.6
Accumulated deficit	-100.7		-266.9
Total stockholders' equity	1,833.20		1,686.80
Total liabilities and stockholders' equity	2,342.30		2,164.60
Non-Guarantors
Current assets:
Cash and cash equivalents	43.4		45.5		40.9	60.4
Accounts receivable, net	264.4		294.6
Inventories	100		129.9
Receivables from affiliates	68		65
Deferred income taxes	12.2		12.6
Other current assets	19.3		18.7
Total current assets	507.3		566.3
Property, plant and equipment, net	113.5		118.9
Deferred income taxes	30.8		37.3
Goodwill	214		237.4
Identifiable intangibles, net	116		134
Other non-current assets	47.9		49.1
Investment in, long term receivable from affiliates	441		441
Total assets	1,470.50		1,584
Current liabilities:
Notes payable	0.8
Current portion of long-term debt	0		0
Accounts payable	74.3		96.5
Accrued compensation	13.2		15.1
Accrued customer program liabilities	51.7		58.1
Accrued interest	0		0
Other current liabilities	46.9		62.4
Payables to affiliates	240.5		244
Total current liabilities	427.4		476.1
Long-term debt	0		0
Long-term notes payable to affiliates	31.2		35.2
Deferred income taxes	52.2		59.9
Pension and post-retirement benefit obligations	46.7		36
Other non-current liabilities	55.2		61.4
Total liabilities	612.7		668.6
Stockholders' equity:
Common stock	247		267.4
Treasury stock	0		0
Paid-in capital	743		743
Accumulated other comprehensive loss	-183		-99.7
Accumulated deficit	50.8		4.7
Total stockholders' equity	857.8		915.4
Total liabilities and stockholders' equity	1,470.50		1,584
Eliminations
Current assets:
Cash and cash equivalents	0		0
Accounts receivable, net	0		0
Inventories	0		0
Receivables from affiliates	-375.5		-174.7
Deferred income taxes	0		0
Other current assets	0		0
Total current assets	-375.5		-174.7
Property, plant and equipment, net	0		0
Deferred income taxes	0		0
Goodwill	0		0
Identifiable intangibles, net	0		0
Other non-current assets	0		0
Investment in, long term receivable from affiliates	-3,011.80		-3,127.60
Total assets	-3,387.30		-3,302.30
Current liabilities:
Notes payable	0
Current portion of long-term debt	0		0
Accounts payable	0		0
Accrued compensation	0		0
Accrued customer program liabilities	0		0
Accrued interest	0		0
Other current liabilities	0		0
Payables to affiliates	-460.2		-459.9
Total current liabilities	-460.2		-459.9
Long-term debt	0		0
Long-term notes payable to affiliates	-236.1		-240.2
Deferred income taxes	0		0
Pension and post-retirement benefit obligations	0		0
Other non-current liabilities	0		0
Total liabilities	-696.3		-700.1
Stockholders' equity:
Common stock	-695		-715.5
Treasury stock	0		0
Paid-in capital	-2,294.10		-2,294.20
Accumulated other comprehensive loss	248.2		145.3
Accumulated deficit	49.9		262.2
Total stockholders' equity	-2,691		-2,602.20
Total liabilities and stockholders' equity	($3,387.30)		($3,302.30)
[1]	Net property, plant and equipment as of December 31, 2014 and 2013 contained $37.0 million and $32.6 million of computer software assets, which are classified within machinery and equipment and construction in progress. Amortization of software costs was $7.4 million, $6.7 million and $8.4 million for the years ended December 31, 2014, 2013 and 2012, respectively.

Condensed_Consolidating_Financ4

Condensed Consolidating Financial Information (Condensed Consolidating Statement of Comprehensive Income) (Details) (USD $)	3 Months Ended																12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014		Sep. 30, 2014		Jun. 30, 2014		Mar. 31, 2014		Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Condensed Financial Statements, Captions [Line Items]
Net sales	$459.90	[1]	$472.20	[1]	$427.70	[1]	$329.40	[1]	$503.70	[1]	$469.20	[1]	$440.20	[1]	$352	[1]	$1,689.20		$1,765.10		$1,758.50
Cost of products sold																	1,159.30		1,217.20		1,221.40
Gross profit	156.9		153.3		131.2		88.5		170.1		142.3		138.3		97.2		529.9		547.9		537.1
Advertising, selling, general and administrative expenses																	328.6		347.3		353.6
Amortization of intangibles																	22.2		24.7		19.9
Restructuring charges																	5.5		30.1		24.3
Operating income	68.5		61.8		43.9		-0.6		66.8		50.3		37.9		-9.2		173.6	[2]	145.8	[2]	139.3	[2]
Expense (income) from affiliates																	0		0		0
Interest expense																	49.5		59		91.3
Interest income																	-5.6		-4.3		-2
Equity in earnings of joint ventures																	-8.1		-8.2		-6.9
Other expense (income), net																	0.8		7.6		61.3
Income (loss) from continuing operations before income taxes and earnings of wholly owned subsidiaries																	137		91.7		-4.4
Income tax expense (benefit)																	45.4		14.4		-121.4
Income from continuing operations	43.9		34.2		21.3		-7.8		50.3		26.4		9.5		-8.9		91.6		77.3		117
Loss from discontinued operations, net of income taxes	0		0		0		0		-0.1		0		0		-0.1		0		-0.2		-1.6
Income (loss) before earnings of wholly owned subsidiaries																	91.6		77.1		115.4
Earnings of wholly owned subsidiaries																	0		0		0
Net income	43.9		34.2		21.3		-7.8		50.2		26.4		9.5		-9		91.6		77.1		115.4
Comprehensive income																	-15.4		47.6		90.3
Parent
Condensed Financial Statements, Captions [Line Items]
Net sales																	0		0		0
Cost of products sold																	0		0		0
Gross profit																	0		0		0
Advertising, selling, general and administrative expenses																	45.4		40.6		46.6
Amortization of intangibles																	0.1		0.1		0.1
Restructuring charges																	0		0.5		0
Operating income																	-45.5		-41.2		-46.7
Expense (income) from affiliates																	-1.5		-1.5		-1.3
Interest expense																	49.9		58.6		61.5
Interest income																	0		0		-0.1
Equity in earnings of joint ventures																	0		0		0
Other expense (income), net																	0.4		4.8		59.7
Income (loss) from continuing operations before income taxes and earnings of wholly owned subsidiaries																	-94.3		-103.1		-166.5
Income tax expense (benefit)																	18.2		-1.5		-121.1
Income from continuing operations																	-112.5		-101.6		-45.4
Loss from discontinued operations, net of income taxes																	0		0		0.5
Income (loss) before earnings of wholly owned subsidiaries																	-112.5		-101.6		-44.9
Earnings of wholly owned subsidiaries																	204.1		178.7		160.3
Net income																	91.6		77.1		115.4
Comprehensive income																	-15.4		47.6		90.3
Guarantors
Condensed Financial Statements, Captions [Line Items]
Net sales																	969.2		971.2		976.5
Cost of products sold																	673.4		669.8		684.2
Gross profit																	295.8		301.4		292.3
Advertising, selling, general and administrative expenses																	157.1		183.5		176.4
Amortization of intangibles																	17.7		19.7		15.3
Restructuring charges																	4.6		14.3		20.2
Operating income																	116.4		83.9		80.4
Expense (income) from affiliates																	-20.7		-21.7		-24.6
Interest expense																	0		0		28.3
Interest income																	-0.1		-0.1		-0.1
Equity in earnings of joint ventures																	0		0		1.9
Other expense (income), net																	-0.7		0.8		3.3
Income (loss) from continuing operations before income taxes and earnings of wholly owned subsidiaries																	137.9		104.9		71.6
Income tax expense (benefit)																	0		0		-0.2
Income from continuing operations																	137.9		104.9		71.8
Loss from discontinued operations, net of income taxes																	0		-0.2		-1.4
Income (loss) before earnings of wholly owned subsidiaries																	137.9		104.7		70.4
Earnings of wholly owned subsidiaries																	62.7		72.6		79
Net income																	200.6		177.3		149.4
Comprehensive income																	181		200.6		146.3
Non-Guarantors
Condensed Financial Statements, Captions [Line Items]
Net sales																	772		814		803.4
Cost of products sold																	537.9		567.5		558.6
Gross profit																	234.1		246.5		244.8
Advertising, selling, general and administrative expenses																	126.1		123.2		130.6
Amortization of intangibles																	4.4		4.9		4.5
Restructuring charges																	0.9		15.3		4.1
Operating income																	102.7		103.1		105.6
Expense (income) from affiliates																	22.2		23.2		25.9
Interest expense																	-0.4		0.4		1.5
Interest income																	-5.5		-4.2		-1.8
Equity in earnings of joint ventures																	-8.1		-8.2		-8.8
Other expense (income), net																	1.1		2		-1.7
Income (loss) from continuing operations before income taxes and earnings of wholly owned subsidiaries																	93.4		89.9		90.5
Income tax expense (benefit)																	27.2		15.9		-0.1
Income from continuing operations																	66.2		74		90.6
Loss from discontinued operations, net of income taxes																	0		0		-0.7
Income (loss) before earnings of wholly owned subsidiaries																	66.2		74		89.9
Earnings of wholly owned subsidiaries																	0		0		0
Net income																	66.2		74		89.9
Comprehensive income																	-17.1		26.5		67.5
Eliminations
Condensed Financial Statements, Captions [Line Items]
Net sales																	-52		-20.1		-21.4
Cost of products sold																	-52		-20.1		-21.4
Gross profit																	0		0		0
Advertising, selling, general and administrative expenses																	0		0		0
Amortization of intangibles																	0		0		0
Restructuring charges																	0		0		0
Operating income																	0		0		0
Expense (income) from affiliates																	0		0		0
Interest expense																	0		0		0
Interest income																	0		0		0
Equity in earnings of joint ventures																	0		0		0
Other expense (income), net																	0		0		0
Income (loss) from continuing operations before income taxes and earnings of wholly owned subsidiaries																	0		0		0
Income tax expense (benefit)																	0		0		0
Income from continuing operations																	0		0		0
Loss from discontinued operations, net of income taxes																	0		0		0
Income (loss) before earnings of wholly owned subsidiaries																	0		0		0
Earnings of wholly owned subsidiaries																	-266.8		-251.3		-239.3
Net income																	-266.8		-251.3		-239.3
Comprehensive income																	($163.90)		($227.10)		($213.80)
[1]	Historically, our business has experienced higher sales in the third and fourth quarters of the calendar year. Two principal factors contribute to this seasonality: (1) the office products industry, its customers and ACCO Brands specifically are major suppliers of products related to the "back-to-school" season, which occurs principally from June through September for our North American business and from November through February for our Australian and Brazilian businesses; and (2) several products we sell lend themselves to calendar year-end purchase timing, including AT-A-GLANCE® and Day-Timer® planners, paper organization and storage products (including bindery) and Kensington computer accessories, which have higher sales in the fourth quarter driven by traditionally strong fourth-quarter sales of personal computers and tablets.
[2]	Operating income as presented in the segment table above is defined as i) net sales; ii) less cost of products sold; iii) less advertising, selling, general and administrative expenses; iv) less amortization of intangibles; and v) less restructuring charges.

Condensed_Consolidating_Financ5

Condensed Consolidating Financial Information (Condensed Consolidating Statements of Cash Flows) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Condensed Financial Statements, Captions [Line Items]
Net cash provided (used) by operating activities	$171.70	$194.50	($7.50)
Investing activities
Additions to property, plant and equipment	-29.6	-36.6	-30.3
Payments for (proceeds from) interest in affiliates	0	0
(Payments) proceeds related to the sale of discontinued operations	0	-1.5	1.5
Proceeds from the disposition of assets	3.8	6.1	3.1
Cost of acquisitions, net of cash acquired	0	-1.3	-397.5
Net cash used by investing activities	-25.8	-33.3	-423.2
Financing activities
Intercompany financing	0	0	0
Net dividends	0	0	0
Proceeds from long-term borrowings	0	530	1,270
Repayments of long-term debt	-121.1	-679.5	-872
Borrowings (repayments) of notes payable, net	1	-0.7	1.2
Payments for debt issuance costs	-0.3	-4.3	-38.5
Repurchases of common stock	-19.4	0	0
Payments related to tax withholding for share-based compensation	-2.5	-1	-0.8
Proceeds from the exercise of stock options	0.3	0	0.2
Net cash (used) provided by financing activities	-142	-155.5	360.1
Effect of foreign exchange rate changes on cash and cash equivalents	-4.2	-2.2	-0.6
Net (decrease) increase in cash and cash equivalents	-0.3	3.5	-71.2
Cash and cash equivalents:
Beginning of the period	53.5	50	121.2
End of the period	53.2	53.5	50
Parent
Condensed Financial Statements, Captions [Line Items]
Net cash provided (used) by operating activities	-77.9	-81.7	-156
Investing activities
Additions to property, plant and equipment	-0.2	0	0
Payments for (proceeds from) interest in affiliates	0	0
(Payments) proceeds related to the sale of discontinued operations		0	0
Proceeds from the disposition of assets	0	0	0
Cost of acquisitions, net of cash acquired		0	-429.5
Net cash used by investing activities	-0.2	0	-429.5
Financing activities
Intercompany financing	188.3	143.8	775.6
Net dividends	35.4	65.7	53.3
Proceeds from long-term borrowings		530	545
Repayments of long-term debt	-121	-658.1	-816.2
Borrowings (repayments) of notes payable, net	0	0.5	0
Payments for debt issuance costs	-0.3	-4.3	-21.5
Repurchases of common stock	-19.4
Payments related to tax withholding for share-based compensation	-2.5	-1	-0.8
Proceeds from the exercise of stock options	0.3		0.2
Net cash (used) provided by financing activities	80.8	76.6	535.6
Effect of foreign exchange rate changes on cash and cash equivalents	0	0	0
Net (decrease) increase in cash and cash equivalents	2.7	-5.1	-49.9
Cash and cash equivalents:
Beginning of the period	7	12.1	62
End of the period	9.7	7	12.1
Guarantors
Condensed Financial Statements, Captions [Line Items]
Net cash provided (used) by operating activities	182.3	186.5	137.5
Investing activities
Additions to property, plant and equipment	-10.6	-21.2	-22.4
Payments for (proceeds from) interest in affiliates	20.5	55.6
(Payments) proceeds related to the sale of discontinued operations		-1.5	2.1
Proceeds from the disposition of assets	3.6	0	0
Cost of acquisitions, net of cash acquired		-1.3	0
Net cash used by investing activities	13.5	31.6	-20.3
Financing activities
Intercompany financing	-181.3	-168.2	-777.4
Net dividends	-15.3	-45.9	27.3
Proceeds from long-term borrowings		0	690
Repayments of long-term debt	-0.1	0	-42.8
Borrowings (repayments) of notes payable, net	0	0	0
Payments for debt issuance costs	0	0	-16.1
Repurchases of common stock	0
Payments related to tax withholding for share-based compensation	0	0	0
Proceeds from the exercise of stock options	0		0
Net cash (used) provided by financing activities	-196.7	-214.1	-119
Effect of foreign exchange rate changes on cash and cash equivalents	0	0	0
Net (decrease) increase in cash and cash equivalents	-0.9	4	-1.8
Cash and cash equivalents:
Beginning of the period	1	-3	-1.2
End of the period	0.1	1	-3
Non-Guarantors
Condensed Financial Statements, Captions [Line Items]
Net cash provided (used) by operating activities	67.3	89.7	11
Investing activities
Additions to property, plant and equipment	-18.8	-15.4	-7.9
Payments for (proceeds from) interest in affiliates	-20.5	-55.6
(Payments) proceeds related to the sale of discontinued operations		0	-0.6
Proceeds from the disposition of assets	0.2	6.1	3.1
Cost of acquisitions, net of cash acquired		0	32
Net cash used by investing activities	-39.1	-64.9	26.6
Financing activities
Intercompany financing	-7	24.4	1.8
Net dividends	-20.1	-19.8	-80.6
Proceeds from long-term borrowings		0	35
Repayments of long-term debt	0	-21.4	-13
Borrowings (repayments) of notes payable, net	1	-1.2	1.2
Payments for debt issuance costs	0	0	-0.9
Repurchases of common stock	0
Payments related to tax withholding for share-based compensation	0	0	0
Proceeds from the exercise of stock options	0		0
Net cash (used) provided by financing activities	-26.1	-18	-56.5
Effect of foreign exchange rate changes on cash and cash equivalents	-4.2	-2.2	-0.6
Net (decrease) increase in cash and cash equivalents	-2.1	4.6	-19.5
Cash and cash equivalents:
Beginning of the period	45.5	40.9	60.4
End of the period	$43.40	$45.50	$40.90

Valuation_and_Qualifying_Accou1

Valuation and Qualifying Accounts and Reserves (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Allowance for Doubtful Accounts
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of year	$6.10	$6.50	$5.10
Additions charged to expense	1	1.5	2.2
Deductions	-1.3	-1.6	-3
Mead C&OP acquisition	0	0	2.1
Foreign exchange changes	-0.3	-0.3	0.1
Balance at end of year	5.5	6.1	6.5
Allowance for Sales Returns and Discounts
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of year	12.9	10.6	7.7
Additions charged to expense	37.4	41.3	41
Deductions	-38.4	-39.1	-41.6
Mead C&OP acquisition	0	0	2.8
Foreign exchange changes	0.1	0.1	0.7
Balance at end of year	12	12.9	10.6
Allowance for Cash Discounts
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of year	2.2	2.2	1.1
Additions charged to expense	15.5	16	16.4
Deductions	-15.6	-16.2	-16
Mead C&OP acquisition	0	0	0.6
Foreign exchange changes	-0.1	0.2	0.1
Balance at end of year	2	2.2	2.2
Warranty Reserves
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of year	2.2	2.8	2.7
Additions charged to expense	2	2	3.3
Deductions	-2.4	-2.6	-3.2
Balance at end of year	1.8	2.2	2.8
Income Tax Valuation Allowance
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of year	33	55.4	204.3
Additions charged to expense	0.2	-11.6	-145.1
Deductions	-8.7	-10.5	-4.3
Foreign exchange changes	-0.6	-0.3	0.5
Balance at end of year	$23.90	$33	$55.40