Armstrong World Industries (AWI) 10-K 27 Feb 17 2016 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Feb. 21, 2017	Jun. 30, 2016
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	FY
Entity Registrant Name	ARMSTRONG WORLD INDUSTRIES INC
Trading Symbol	awi
Entity Central Index Key	7,431
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Common Stock, Shares Outstanding		53,839,882
Entity Public Float			$ 1,800

Consolidated Statements of Earn

Consolidated Statements of Earnings and Comprehensive Income (Loss) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Statement [Abstract]
Net sales	$ 1,234.5	$ 1,231.3	$ 1,294.3
Cost of goods sold	863.3	854.9	911.2
Gross profit	371.2	376.4	383.1
Selling, general and administrative expenses	225.2	267.7	250.1
Separation costs	34.5	34.3
Equity earnings from joint venture	(73.1)	(66.1)	(65.1)
Operating income	184.6	140.5	198.1
Interest expense	49.8	45.3	46
Other non-operating expense	0.1	20.1	5.9
Other non-operating (income)	(9.6)	(5)	(2.2)
Earnings from continuing operations before income taxes	144.3	80.1	148.4
Income tax expense	50.4	53.5	69.3
Earnings from continuing operations	93.9	26.6	79.1
Net (loss) gain from discontinued operations, net of tax expense of $0.1, $17.8 and $13.9	(4.5)	26	(0.8)
Gain (loss) on disposal of discontinued business, net of tax (benefit) of ($15.2), ($41.8) and ($2.5)	15.3	41.6	(14.5)
Net gain (loss) from discontinued operations	10.8	67.6	(15.3)
Net earnings	104.7	94.2	63.8
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(33.2)	(25.5)	(29.6)
Derivative gain (loss)	7.5	0.7	(3.3)
Pension and postretirement adjustments	49.3	32.9	(91)
Total other comprehensive income (loss)	23.6	8.1	(123.9)
Total comprehensive income (loss)	$ 128.3	$ 102.3	$ (60.1)
Earnings per share of common stock, continuing operations:
Basic	$ 1.69	$ 0.48	$ 1.43
Diluted	1.68	0.47	1.42
Earnings (loss) per share of common stock, discontinued operations:
Basic	0.19	1.21	(0.28)
Diluted	0.19	1.21	(0.28)
Net earnings per share of common stock:
Basic	1.88	1.69	1.15
Diluted	$ 1.87	$ 1.68	$ 1.14
Average number of common shares outstanding:
Basic	55.4	55.5	55
Diluted	55.7	55.9	55.4

Consolidated Statements of Ear3

Consolidated Statements of Earnings and Comprehensive Income (Loss) (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Statement [Abstract]
Net (loss) from discontinued operations, tax expense	$ 0.1	$ 17.8	$ 13.9
Loss on disposal of discontinued business, tax (benefit)	$ (15.2)	$ (41.8)	$ (2.5)

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 141.9	$ 209.3
Accounts and notes receivable, net	108.3	114.3
Inventories, net	109	101.4
Current assets of discontinued operations		381.2
Deferred income taxes		29.8
Income tax receivable	26.2	11.1
Other current assets	20.8	33.7
Total current assets	406.2	880.8
Property, plant, and equipment, less accumulated depreciation and amortization of $445.5 and $403.8, respectively	669.6	648.1
Prepaid pension costs	56.6	8.3
Investment in joint venture	106.2	130.8
Intangible assets, net	433.4	447.2
Noncurrent assets of discontinued operations		493.1
Deferred income taxes	15.4	19.5
Income tax receivable	5.7	2.4
Other noncurrent assets	64.9	57
Total assets	1,758	2,687.2
Current liabilities:
Current installments of long-term debt	25	52.1
Accounts payable and accrued expenses	197.1	231.1
Liabilities of discontinued operations		149.3
Income tax payable	2	3.2
Deferred income taxes		0.6
Total current liabilities	224.1	436.3
Long-term debt, less current installments	848.6	936.2
Postretirement benefit liabilities	84.8	87.2
Pension benefit liabilities	86.3	62.1
Other long-term liabilities	29.1	43.3
Noncurrent liabilities of discontinued operations		154.3
Income tax payable	62.2	92.3
Deferred income taxes	156.5	106.7
Total noncurrent liabilities	1,267.5	1,482.1
Shareholders' equity:
Common stock, $0.01 par value per share, authorized 200 million shares; issued 60,597,140 shares, outstanding 54,428,233 shares in 2016 and 60,416,446 shares issued, 55,359,064 outstanding shares in 2015	0.6	0.6
Capital in excess of par value	504.9	1,151.8
Retained earnings	469.9	365.2
Treasury stock, at cost, 6,168,907 shares as of December 31, 2016 and 5,057,382 shares as of December 31, 2015	(305.2)	(261.4)
Accumulated other comprehensive (loss)	(403.8)	(487.4)
Total shareholders' equity	266.4	768.8
Total liabilities and shareholders' equity	$ 1,758	$ 2,687.2

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Statement Of Financial Position [Abstract]
Property, plant and equipment, accumulated depreciation and amortization	$ 445.5	$ 403.8
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	60,597,140	60,416,446
Common stock, shares outstanding	54,428,233	55,359,064
Treasury stock, shares	6,168,907	5,057,382

Consolidated Statements Of Equi

Consolidated Statements Of Equity - USD ($) $ in Millions	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Beginning of year balance at Dec. 31, 2013	$ 673.2	$ 0.6	$ 1,098.4	$ 207.2	$ (261.4)	$ (371.6)
Beginning of year balance at Dec. 31, 2013		54,406,927
Beginning of year balance at Dec. 31, 2013					5,057,382
Stock issuance, net		719,226
Share-based employee compensation	36		36
Net earnings	63.8			63.8
Other comprehensive income (loss)	(123.9)					(123.9)
End of year balance at Dec. 31, 2014	649.1	$ 0.6	1,134.4	271	$ (261.4)	(495.5)
End of year balance at Dec. 31, 2014		55,126,153
End of year balance at Dec. 31, 2014					5,057,382
Stock issuance, net		232,911
Share-based employee compensation	17.4		17.4
Net earnings	94.2			94.2
Other comprehensive income (loss)	8.1					8.1
End of year balance at Dec. 31, 2015	$ 768.8	$ 0.6	1,151.8	365.2	$ (261.4)	(487.4)
End of year balance at Dec. 31, 2015	55,359,064	55,359,064
End of year balance at Dec. 31, 2015	5,057,382				5,057,382
Stock issuance, net		180,694
Share-based employee compensation	$ 9.2		9.2
Net earnings	104.7			104.7
Other comprehensive income (loss)	23.6					23.6
Separation of Armstrong Flooring, Inc.	(596.1)		(656.1)			60
Acquisition of treasury stock	(43.8)	$ (43.8)			$ (43.8)
Acquisition of treasury stock, shares		(1,111,525)			1,111,525
End of year balance at Dec. 31, 2016	$ 266.4	$ 0.6	$ 504.9	$ 469.9	$ (305.2)	$ (403.8)
End of year balance at Dec. 31, 2016	54,428,233	54,428,233
End of year balance at Dec. 31, 2016	6,168,907				6,168,907

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash flows from operating activities:
Net earnings	$ 104.7	$ 94.2	$ 63.8
Adjustments to reconcile earnings to net cash provided by operating activities:
Depreciation and amortization	89.2	118.3	129.4
Write off of debt financing costs	1.1
Gain (loss) on disposal of discontinued operations	(0.1)	0.2	17
Impairment on assets of discontinued operations			11.9
Fixed and intangible asset impairments			15.8
Deferred income taxes	51	(48.5)	41.5
Share-based compensation	12.4	13.4	12.7
Excess tax benefits from share-based awards			(8.4)
Equity earnings from joint venture	(73.1)	(66.1)	(65.1)
Separation costs	34.5	34.3
Loss on interest rate swap	10.7
U.S. pension expense	15	25.2	0.6
Non-cash foreign currency translation on intercompany loans	(3.6)	19.8	37.2
Other, non-cash adjustments, net	(0.3)	0.3	(0.5)
Changes in operating assets and liabilities:
Receivables	(23.9)	2.7	(6.2)
Inventories	(7)	(15.7)	(26.8)
Other current assets	7.1	(7.3)	(9.7)
Other noncurrent assets	(9.9)	7.9	(5.1)
Accounts payable and accrued expenses	(82.1)	15	(6.1)
Income taxes payable	(49.3)	33.6	24.2
Other long-term liabilities	(22)	(22.2)	(21)
Other, net	(5.1)	(1.4)	3.6
Net cash provided by operating activities	49.3	203.7	208.8
Cash flows from investing activities:
Purchases of property, plant and equipment	(104.2)	(170.7)	(222.9)
Return of investment from joint venture	86.9	64.2	67.9
Proceeds from (payment of) company-owned life insurance, net		2.2	(0.5)
Proceeds from the sale of assets	0.1	2.8	7.9
Proceeds from settlement of note receivable	0.2		2.4
Net cash effect from deconsolidation of subsidiary			(4.1)
Net cash (used for) investing activities	(17)	(101.5)	(149.3)
Cash flows from financing activities:
Proceeds from revolving credit facility and other short-term debt	90		122.8
Payments of revolving credit facility and other short-term debt	(90)		(122.8)
Proceeds from long-term debt	363.5
Payments of long-term debt	(434.1)	(39.5)	(23.9)
Financing costs	(8.1)
Special dividends paid		(1.2)	(1.3)
Excess tax benefits from share-based compensation			8.4
Proceeds from exercised stock options	0.7	6.4	17.8
Cash transferred to Armstrong Flooring, Inc.	(9.1)
Proceeds from company-owned life insurance loans, net	2	2	2.3
Payment for treasury stock acquired	(43.8)
Net cash (used for) provided by financing activities	(128.9)	(32.3)	3.3
Effect of exchange rate changes on cash and cash equivalents	(6.3)	(10.4)	(12.7)
Net (decrease) increase in cash and cash equivalents	(102.9)	59.5	50.1
Cash and cash equivalents at beginning of year	244.8	185.3	135.2
Cash and cash equivalents at end of year	141.9	244.8	185.3
Cash and cash equivalents at end of year of discontinued operations		35.5	45.3
Cash and cash equivalents at end of year of continuing operations	141.9	209.3	140
Supplemental Cash Flow Disclosures:
Interest paid	33.4	39.4	40.2
Income taxes paid, net	33.7	44.4	15
Amounts in accounts payable for capital expenditures	$ 4.4	$ 14.3	$ 18.7

Business

Business	12 Months Ended
	Dec. 31, 2016
Business [Abstract]
Business	NOTE 1. BUSINESS Armstrong World Industries, Inc. (“AWI”) is a Pennsylvania corporation incorporated in 1891. When we refer to “AWI,” the “Company,” “we,” “our” and “us” in these notes, we are referring to AWI and its subsidiaries. On April 1, 2016, we completed our previously announced separation of Armstrong Flooring, Inc. (“AFI”) by allocating the assets and liabilities related primarily to the Resilient Flooring and Wood Flooring segments to AFI and then distributing the common stock of AFI to our shareholders at a ratio of one share of AFI common stock for every two shares of AWI common stock. Subsequent to the separation and distribution, AWI and AFI operate as two independent, publicly-traded companies, with AFI owning and operating the Resilient Flooring and Wood Flooring segments and AWI continuing to own and operate the Building Products (Ceilings) segment. AFI’s historical financial results have been reflected in AWI’s Consolidated Financial Statements as a discontinued operation for all periods presented. Separation costs for 2016 and 2015 were $34.5 million and $34.3 million, respectively. Separation costs for all periods primarily related to outside professional services and employee compensation and retention and severance accruals which were recorded within the Unallocated Corporate segment in conjunction with this initiative. See Note 4 for additional information.

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2016
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	NOTE 2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Consolidation Policy Use of Estimates Reclassifications Revenue Recognition Sales Incentives Shipping and Handling Costs Advertising Costs Research and Development Costs Pension and Postretirement Benefits Taxes We reduce the carrying amounts of deferred tax assets by a valuation allowance if, based on the available evidence, it is more likely than not that such assets will not be realized. The need to establish valuation allowances for deferred tax assets is assessed quarterly. In assessing the requirement for, and amount of, a valuation allowance in accordance with the more likely than not standard, we give appropriate consideration to all positive and negative evidence related to the realization of the deferred tax assets. This assessment considers, among other matters, the nature, frequency and severity of current and cumulative losses, forecasts of future profitability and foreign source income, the duration of statutory carryforward periods, and our experience with operating loss and tax credit carryforward expirations. A history of cumulative losses is a significant piece of negative evidence used in our assessment. If a history of cumulative losses is incurred for a tax jurisdiction, forecasts of future profitability are generally not used as positive evidence related to the realization of the deferred tax assets in the assessment. We recognize the tax benefits of an uncertain tax position if those benefits are more likely than not to be sustained based on existing tax law. Additionally, we establish a reserve for tax positions that are more likely than not to be sustained based on existing tax law, but uncertain in the ultimate benefit to be sustained upon examination by the relevant taxing authorities. Unrecognized tax benefits are subsequently recognized at the time the more likely than not recognition threshold is met, the tax matter is effectively settled or the statute of limitations for the relevant taxing authority to examine and challenge the tax position has expired, whichever is earlier. Taxes collected from customers and remitted to governmental authorities are reported on a net basis. Earnings per Share Cash and Cash Equivalents Concentration of Credit Receivables We establish credit-worthiness prior to extending credit. We estimate the recoverability of receivables each period. This estimate is based upon new information in the period, which can include the review of any available financial statements and forecasts, as well as discussions with legal counsel and the management of the debtor company. As events occur, which impact the collectability of the receivable, all or a portion of the receivable is reserved. Account balances are charged off against the allowance when the potential for recovery is considered remote. We do not have any off-balance sheet credit exposure related to our customers. Inventories Property Plant and Equipment Property, plant and equipment is tested for impairment by asset group when indicators of impairment are present, such as operating losses and/or negative cash flows. If an indication of impairment exists, we compare the carrying amount of the asset group to the estimated undiscounted future cash flows expected to be generated by the asset group. The estimate of an asset group’s fair value is based on discounted future cash flows expected to be generated by the asset group, or based on management’s estimated exit price assuming the assets could be sold in an orderly transaction between market participants, or estimated salvage value if no sale is assumed. If the fair value is less than the carrying value of the asset group, we record an impairment charge equal to the difference between the fair value and carrying value of the asset group. Impairments of assets related to our manufacturing operations are recorded in cost of goods sold. When assets are disposed of or retired, their costs and related depreciation are removed from the financial statements, and any resulting gains or losses normally are reflected in cost of goods sold or selling, general and administrative (“SG&A”) expenses depending on the nature of the asset. Asset Retirement Obligations Intangible Assets Our indefinite-lived intangibles are primarily trademarks and brand names, with Armstrong representing our primary trademark, which are integral to our corporate identity and expected to contribute indefinitely to our cash flows. Accordingly, they have been assigned an indefinite life. We perform annual impairment tests during the fourth quarter on these indefinite-lived intangibles. These assets undergo more frequent tests if an indication of possible impairment exists. The principal assumption used in our impairment tests for definite-lived intangible assets is future operating profit adjusted for depreciation and amortization. The principal assumptions used in our impairment tests for indefinite-lived intangible assets include revenue growth rate, discount rate and royalty rate. Revenue growth rate and future operating profit assumptions are derived from those utilized in our operating plan and strategic planning processes. The discount rate assumption is calculated based upon an estimated weighted average cost of equity which reflects the overall level of inherent risk and the rate of return a market participant would expect to achieve. The royalty rate assumption represents the estimated contribution of the intangible asset to the overall profits of the reporting unit. Methodologies used for valuing our intangible assets did not change from prior periods. See Note 10 to the Consolidated Financial Statements for disclosure on intangible assets. Foreign Currency Transactions Financial Instruments and Derivatives Share-based Employee Compensation Subsequent Events Recently Adopted Accounting Standards In April 2015, the FASB issued ASU 2015-03, “Simplifying the Presentation of Debt Issuance Costs.” “Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements,” In November 2015, the FASB issued ASU 2015-17, “Balance Sheet Classification of Deferred Taxes,” In November 2016, the FASB issued ASU 2016-18, “Restricted Cash,” Recently Issued Accounting Standards In May 2014, the FASB issued ASU 2014-09, “Revenue from Contracts with Customers.” “Revenue from Contracts with Customers: Deferral of the Effective Date,” “Principal versus Agent Considerations (Reporting Gross versus Net),” “Identifying Performance Obligations and Licensing,” “Narrow-Scope Improvements and Practical Expedients,” “Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers,” Collectively, the revenue recognition ASC updates are effective for annual reporting periods beginning after December 15, 2017, but early adoption is permitted. We intend to adopt these standards effective January 1, 2018 on a modified retrospective transition method and also intend on applying all practical expedients related to completed contracts upon adoption. We are still evaluating the impact the adoption of these ASC updates will have on our financial condition, results of operations and cash flows. Our final evaluation of the impact of adopting these ASC updates is expected to be completed during the third quarter of 2017. In July 2015, the FASB issued ASU 2015-11, “Simplifying the Measurement of Inventory,” In January 2016, the FASB issued ASU 2016-01, “Recognition and Measurement of Financial Assets and Financial Liabilities,” In February 2016, the FASB issued ASU 2016-02, “Leases,” In March 2016, the FASB issued ASU 2016-09, “Improvements to Employee Share-Based Payment Accounting,” In August 2016, the FASB issued ASU 2016-15, “Classification of Certain Cash Receipts and Cash Payments,” In January 2017, the FASB issued ASU 2017-01, “Clarifying the Definition of a Business,”

Nature Of Operations

Nature Of Operations	12 Months Ended
	Dec. 31, 2016
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Nature Of Operations	NOTE 3. NATURE OF OPERATIONS Effective April 1, 2016 and in connection with our separation of AFI, our former Resilient Flooring and Wood Flooring segments have been excluded from our results of continuing operations. In addition, effective April 1, 2016, we disaggregated our former Building Products operating segment into the following three distinct geographical segments: Americas (including Canada); Europe, Middle East and Africa (including Russia) (“EMEA”); and Pacific Rim. Each of our geographical segments produces suspended fiber and metal ceilings for use in commercial and institutional settings in addition to sourcing complementary ceiling products. Commercial ceiling materials and accessories are sold to resale distributors and to ceiling systems contractors. Residential ceiling products are sold in the Americas primarily to wholesalers and retailers (including large home centers). Each segment also includes the results of our Worthington Armstrong Venture (“WAVE”) joint venture with Worthington Industries, Inc., which manufactures suspension system (grid) products that are invoiced by both us and WAVE. Segment results relating to WAVE consist primarily of equity earnings and reflect our 50% equity interest in the joint venture. In each of our segments, WAVE primarily sells its suspension system products directly to customers, for which we provide sales and administrative support. To a lesser extent, however, in some markets, WAVE sells its suspension systems products to us for resale to customers. Our segment results reflect those sales transactions. Effective April 1, 2016, we reclassified the majority of the assets and liabilities formally reported in our Unallocated Corporate segment to our Americas segment. The assets and liabilities reclassified to our Americas segment most notably included the Armstrong trade name intangible asset, property, plant and equipment comprised primarily of Corporate campus facilities, the cash surrender value of life insurance supporting deferred compensation liabilities, income tax assets and liabilities, and pension and postretirement assets and liabilities. Balance sheet items classified as Unallocated Corporate for all periods presented primarily include cash and cash equivalents and outstanding borrowings under our senior credit facilities. Segment results below have been restated for all periods presented as a result of the disaggregation of our former Building Products segment and the reclassification of Unallocated Corporate assets. These revisions did not impact any previously reported consolidated revenues, gross profit, results of continuing operations, or asset or liability balances. Americas EMEA Pacific Rim Unallocated Corporate Total For the year ended 2016 Net sales to external customers $ 837.3 $ 263.1 $ 134.1 $ - $ 1,234.5 Equity (earnings) from joint venture (70.2 ) (2.2 ) (0.7 ) - (73.1 ) Segment operating income (loss) 232.1 (8.2 ) (0.5 ) (38.8 ) 184.6 Segment assets 1,186.7 275.5 145.0 150.8 1,758.0 Depreciation and amortization (1) 52.9 16.7 8.1 0.1 77.8 Investment in joint venture 106.2 - - - 106.2 Purchases of property, plant and equipment (1) 66.4 19.1 6.6 - 92.1 Americas EMEA Pacific Rim Unallocated Corporate Total For the year ended 2015 Net sales to external customers $ 805.1 $ 289.9 $ 136.3 $ - $ 1,231.3 Equity (earnings) from joint venture (63.5 ) (2.3 ) (0.3 ) - (66.1 ) Segment operating income (loss) 283.5 (11.9 ) (6.8 ) (124.3 ) 140.5 Segment assets 1,137.3 283.2 154.4 238.0 1,812.9 Depreciation and amortization (1) 43.2 15.6 8.8 11.6 79.2 Investment in joint venture 130.8 - - - 130.8 Purchases of property, plant and equipment (1) 52.2 30.5 4.0 22.4 109.1 Americas EMEA Pacific Rim Unallocated Corporate Total For the year ended 2014 Net sales to external customers $ 798.3 $ 353.4 $ 142.6 $ - $ 1,294.3 Equity (earnings) from joint venture (61.6 ) (3.4 ) (0.1 ) - (65.1 ) Segment operating income (loss) 272.1 (5.4 ) (2.0 ) (66.6 ) 198.1 Segment assets 1,127.4 296.6 166.3 165.1 1,755.4 Depreciation and amortization (1) 44.7 12.9 8.4 10.8 76.8 Asset impairment (1) - - 0.4 - 0.4 Investment in joint venture 129.0 - - - 129.0 Purchases of property, plant and equipment (1) 42.5 75.2 10.4 11.4 139.5 (1) Segment operating income (loss) is the measure of segment profit or loss reviewed by the chief operating decision maker. The sum of the segments’ operating income (loss) equals the total consolidated operating income as reported on our Consolidated Statements of Earnings and Comprehensive Income (Loss). The following reconciles our total consolidated operating income to earnings from continuing operations before income taxes. These items are only measured and managed on a consolidated basis: 2016 2015 2014 Segment operating income $ 184.6 $ 140.5 $ 198.1 Interest expense 49.8 45.3 46.0 Other non-operating expense 0.1 20.1 5.9 Other non-operating income (9.6 ) (5.0 ) (2.2 ) Earnings from continuing operations before income taxes $ 144.3 $ 80.1 $ 148.4 Accounting policies of the segments are the same as those described in the summary of significant accounting policies. The sales in the table below are allocated to geographic areas based on the location of our selling entities. 2016 2015 2014 Geographic Areas Net trade sales Americas: United States $ 775.9 $ 745.9 $ 726.0 Canada 61.4 59.2 72.3 Total Americas 837.3 805.1 798.3 EMEA: United Kingdom 87.9 112.0 113.8 France 54.0 54.9 69.7 Netherlands 43.3 42.1 53.3 Russia 40.2 37.4 62.0 Other 37.7 43.5 54.6 Total EMEA 263.1 289.9 353.4 Pacific Rim: India 40.0 43.7 39.6 China 38.7 39.1 47.6 Australia 35.5 32.4 35.6 Other 19.9 21.1 19.8 Total Pacific Rim 134.1 136.3 142.6 Total net trade sales $ 1,234.5 $ 1,231.3 $ 1,294.3 2016 2015 Property, plant and equipment, net at December 31, Americas: United States $ 426.7 $ 403.8 Canada 34.8 28.9 Other 0.1 0.1 Total Americas 461.6 432.8 EMEA: Russia 54.6 48.3 France 31.4 27.6 Germany 25.5 28.5 United Kingdom 18.0 21.8 Austria 17.4 17.6 Other 1.2 1.3 Total EMEA 148.1 145.1 Pacific Rim: China 58.5 69.1 Other 1.4 1.1 Total Pacific Rim 59.9 70.2 Total property, plant and equipment, net $ 669.6 $ 648.1 Impairment testing of our tangible assets occurs whenever events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable. Effective January 1, 2016, in anticipation of the April 1, 2016 AFI separation, the majority of our historical corporate support functions, representing costs of approximately $85 million for 2016 were incorporated into our Americas segment. As a result, Unallocated Corporate support expenses have decreased significantly during 2016 in comparison to 2015 and 2014. For 2016, 2015 and 2014, Unallocated Corporate segment operating (loss) was comprised of the following: 2016 2015 2014 Corporate expenses $ (4.3 ) $ (90.0 ) $ (66.6 ) Separation costs (34.5 ) (34.3 ) - Total Unallocated Corporate segment operating (loss) $ (38.8 ) $ (124.3 ) $ (66.6 )

Discontinued Operations

Discontinued Operations	12 Months Ended
	Dec. 31, 2016
Discontinued Operations [Abstract]
Discontinued Operations	NOTE 4. DISCONTINUED OPERATIONS Separation and Distribution of AFI On April 1, 2016, in connection with the separation and distribution of AFI, we entered into several agreements with AFI that, together with a plan of division, provide for the separation and allocation between AWI and AFI of the flooring assets, employees, liabilities and obligations of AWI and its subsidiaries attributable to periods prior to, at and after AFI’s separation from AWI, and govern the relationship between AWI and AFI subsequent to the completion of the separation and distribution. These agreements include a Transition Services Agreement, a Tax Matters Agreement, an Employee Matters Agreement, a Trademark License Agreement, a Transition Trademark License Agreement and a Campus Lease Agreement. Under the Transition Services Agreement, AWI and AFI will provide various services to each other during a transition period expiring no later than December 31, 2017, including information technology, accounts payable, payroll, and other financial functions and administrative services. We do not anticipate the Transition Services Agreement will need to be extended beyond December 31, 2017. The Tax Matters Agreement generally governs AWI’s and AFI’s respective rights, responsibilities and obligations after the separation and distribution with respect to tax liabilities and benefits, tax attributes, the preparation and filing of tax returns, the control of audits and other tax proceedings, and other matters regarding taxes for any tax period ending on or before the distribution date, as well as tax periods beginning after the distribution date. In addition, the Tax Matters Agreement provides that AFI is liable for taxes incurred by AWI that may arise if AFI takes, or fails to take, certain actions that may result in the separation, the distribution or certain related transactions failing to qualify as tax-free for U.S. federal income tax purposes. Upon distribution, AWI received an opinion from its tax counsel that the separation and distribution qualified as a tax-free transaction for AWI and its shareholders. The Employee Matters Agreement governs certain compensation and employee benefit obligations with respect to the current and former employees and non-employee directors of AWI and AFI. Pursuant to this agreement and in connection with the distribution, AWI transferred assets and liabilities from the AWI defined benefit pension and postretirement plans to AFI that relate to active AFI employees and certain former AFI employees to mirror plans established by AFI. Based on analyses provided by our actuaries, $3.0 million and $86.3 million of U.S. pension and U.S. postretirement benefit plan net liabilities under AWI’s plans, respectively, were transferred to mirror plans established by AFI during 2016 as a result of the separation. The total net U.S. pension plan liability transferred to AFI of $3.0 million consisted of a $365.2 million projected benefit obligation, partially offset by the fair value of $362.2 million of plan assets. See Note 16 for additional details. Pursuant to the Trademark License Agreement, AWI provided AFI with a perpetual, royalty-free license to utilize the “Armstrong” trade name and logo. Pursuant to the Transition Trademark License Agreement, AFI provided us with a five-year royalty-free license to utilize the “Inspiring Great Spaces” tagline, logo and related color scheme. Under the Campus Lease Agreement, certain portions of the AWI headquarters are being leased to AFI to use as its corporate headquarters for an initial term of five years, subject to certain renewal rights. The following is a summary of the results of operations related to AFI, our former Resilient Flooring and Wood Flooring segments, which are presented as discontinued operations. 2016 2015 2014 Net sales $ 284.4 $ 1,188.7 $ 1,221.0 Cost of goods sold 237.2 962.3 1,020.8 Gross profit 47.2 226.4 200.2 Selling, general and administrative expenses 50.5 179.5 148.4 Intangible asset impairments - - 10.8 Operating (loss) income (3.3 ) 46.9 41.0 Other non-operating expense, net 1.1 3.1 4.2 (Loss) earnings from discontinued operations before income tax (4.4 ) 43.8 36.8 Income tax expense 0.1 17.8 13.9 (Loss) earnings from discontinued operations $ (4.5 ) $ 26.0 $ 22.9 The following is a summary of the carrying amount of the major classes of assets and liabilities classified as assets and liabilities of discontinued operations as of December 31, 2015 related to AFI. December 31, 2015 Assets Current assets: Cash and cash equivalents $ 35.5 Accounts and notes receivable, net 70.0 Inventories, net 242.8 Deferred income taxes 5.7 Other current assets 27.2 Total current assets discontinued operations 381.2 Property, plant, and equipment, less accumulated depreciation and amortization 448.2 Intangible assets, net 42.5 Deferred income taxes 1.5 Other non-current assets 0.9 Total non-current assets of discontinued operations 493.1 Total assets of discontinued operations $ 874.3 Liabilities Current liabilities: Accounts payable and accrued expenses $ 149.3 Total current liabilities 149.3 Long-term debt, less current installments 10.0 Postretirement benefit liabilities 85.2 Pension benefit liabilities 45.5 Other long-term liabilities 6.3 Deferred income taxes 7.3 Total non-current liabilities of discontinued operations 154.3 Total liabilities of discontinued operations $ 303.6 In connection with the separation and distribution of AFI, on April 1, 2016 we received a $50.0 million dividend from AFI. In addition, $60.0 million of accumulated other comprehensive losses, net of tax, were transferred to AFI, consisting of amounts related to transferred pension and postretirement liabilities, net derivatives assets and a cumulative translation adjustment. The impact of these items, in addition to the net effect of all assets and liabilities transferred to AFI upon separation resulted in a $656.1 million reduction to additional paid-in capital as of December 31, 2016. The following is a summary of total depreciation and amortization, fixed and intangible asset impairments, and capital expenditures related to AFI which are presented as discontinued operations and included as components of operating and investing cash flows on our consolidated statements of cash flows: 2016 2015 2014 Depreciation and amortization $ 11.4 $ 39.1 $ 46.6 Fixed and intangible asset impairments - - 15.4 Purchases of property, plant and equipment (12.1 ) (61.6 ) (77.6 ) European Resilient Flooring On December 4, 2014, our Board of Directors approved the cessation of funding to our former DLW subsidiary, which was our former European flooring business. As a result, DLW management filed for insolvency in Germany on December 11, 2014. The following is a summary of the results related to the DLW business, which are included in discontinued operations. These results were previously presented as a part of the Resilient Flooring reporting segment. 2014 (Loss) from discontinued operations before income tax $ (23.7 ) Income tax expense - (Loss) from discontinued operations $ (23.7 ) The DLW insolvency filing in December 2014 resulted in our disposal and presentation of DLW for all historical periods as a discontinued operation. However, the insolvency filing did not meet the U.S. tax criteria to be considered disposed of until the first quarter of 2015. In determining the U.S. tax impact of the disposition, the liabilities, including an unfunded pension liability of approximately $115 million, were considered proceeds. However, pension deductions for tax purposes result only when the benefit payments are made. Accordingly, a deferred tax asset and non-cash income tax benefit of $43.4 million were recorded in the first quarter of 2015 within discontinued operations for the tax benefit of the future pension deductions. As of December 4, 2014, DLW had a net liability of $12.9 million, representing assets of $151.9 million and liabilities of $164.8 million, which were removed from our balance sheet. This net liability was recognized as a contingent liability on our consolidated balance sheet pending the closure and results of the insolvency proceedings. Any shortfall will be recognized immediately when identified and any excess will be reflected when insolvency proceedings are finalized, all through discontinued operations. The amount of the net liability, included within Accounts payable and accrued expenses on our Consolidated Balance Sheets, was $11.9 million and $12.1 million as of December 31, 2016 and 2015, respectively. DLW was previously shown within our Resilient Flooring reporting segment. The following is a summary of the results related to the net gains and losses on disposal of our flooring businesses which are included in discontinued operations. 2016 2015 2014 Gain (loss) on disposal of discontinued businesses before income tax $ 0.1 $ (0.8 ) $ (13.5 ) Income tax (benefit) (15.2 ) (42.0 ) (1.2 ) Net gain (loss) on disposal of discontinued businesses $ 15.3 $ 41.2 $ (12.3 ) Cabinets In September 2012, we entered into a definitive agreement to sell our cabinets business to American Industrial Partners. The sale was completed in October 2012. The following is a summary of the results related to the cabinets business, which are included in discontinued operations. 2015 2014 Gain (loss) on disposal of discontinued business before income tax $ 0.6 $ (3.5 ) Income tax expense (benefit) 0.2 (1.3 ) Net gain (loss) on disposal of discontinued business $ 0.4 $ (2.2 )

Accounts and Notes Receivable

Accounts and Notes Receivable	12 Months Ended
	Dec. 31, 2016
Receivables [Abstract]
Accounts and Notes Receivable	NOTE 5. ACCOUNTS AND NOTES RECEIVABLE December 31, 2016 December 31, 2015 Customer receivables $ 106.9 $ 114.0 Customer notes 1.5 0.7 Miscellaneous receivables 6.0 6.4 Less allowance for warranties, discounts, and losses (6.1 ) (6.8 ) Accounts and notes receivable, net $ 108.3 $ 114.3 Generally, we sell our products to select, pre-approved customers whose businesses are affected by changes in economic and market conditions. We consider these factors and the financial condition of each customer when establishing our allowance for losses from doubtful accounts.

Inventories

Inventories	12 Months Ended
	Dec. 31, 2016
Inventory Disclosure [Abstract]
Inventories	NOTE 6. INVENTORIES December 31, 2016 December 31, 2015 Finished goods $ 80.5 $ 72.0 Goods in process 3.3 4.2 Raw materials and supplies 32.4 32.0 Less LIFO and other reserves (7.2 ) (6.8 ) Total inventories, net $ 109.0 $ 101.4 Approximately 38% and 36% of our total inventory in 2016 and 2015, respectively, were valued on a LIFO (last-in, first-out) basis. The distinction between the use of different methods of inventory valuation is primarily based on geographical locations and/or legal entities. The following table summarizes the amount of inventory that is not accounted for under the LIFO method. December 31, 2016 December 31, 2015 International locations $ 63.8 $ 59.0 U.S. sourced products 4.2 5.5 Total $ 68.0 $ 64.5 Substantially all of our international locations use the FIFO method of inventory valuation (or other methods which closely approximate the FIFO method) primarily because the LIFO method is not permitted for local tax and/or statutory reporting purposes. In these situations, a conversion to LIFO would be highly complex and involve excessive cost and effort to achieve under local tax and/or statutory reporting requirements. The sourced products represent certain finished goods sourced from third party manufacturers, primarily from domestic suppliers.

Other Current Assets

Other Current Assets	12 Months Ended
	Dec. 31, 2016
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]
Other Current Assets	NOTE 7. OTHER CURRENT ASSETS December 31, 2016 December 31, 2015 Prepaid expenses $ 15.0 $ 20.4 Fair value of derivative assets 2.4 3.4 Certificates of deposit 0.4 7.6 Other 3.0 2.3 Total other current assets $ 20.8 $ 33.7

Property, Plant And Equipment

Property, Plant And Equipment	12 Months Ended
	Dec. 31, 2016
Property Plant And Equipment [Abstract]
Property, Plant And Equipment	NOTE 8. PROPERTY, PLANT AND EQUIPMENT December 31, 2016 December 31, 2015 Land $ 38.0 $ 38.3 Buildings 261.2 250.4 Machinery and equipment 706.4 669.7 Computer software 18.7 16.8 Construction in progress 90.8 76.7 Less accumulated depreciation and amortization (445.5 ) (403.8 ) Net property, plant and equipment $ 669.6 $ 648.1 See Note 2 to the Consolidated Financial Statements for discussion of policies related to property and depreciation and asset retirement obligations.

Equity Investments

Equity Investments	12 Months Ended
	Dec. 31, 2016
Equity Method Investments And Joint Ventures [Abstract]
Equity Investments	NOTE 9. EQUITY INVESTMENTS Investment in joint venture as of December 31, 2016 reflected the equity interest in our 50% investment in our WAVE joint venture. The WAVE joint venture is reflected in our consolidated financial statements using the equity method of accounting. We use the equity in earnings method to determine the appropriate classification of distributions from WAVE within our cash flow statement. During 2016, 2015 and 2014, WAVE distributed amounts in excess of our capital contributions and proportionate share of retained earnings. Accordingly, the distributions in these years were reflected as a return of investment in cash flows from investing activity in our Consolidated Statement of Cash Flows. Distributions from WAVE in 2016, 2015 and 2014 were $86.9 million, $64.2 million, and $67.9 million, respectively. In certain markets, we sell WAVE products directly to customers pursuant to specific terms of sale. In those circumstances, we record the sales and associated costs within our consolidated financial statements. The total sales associated with these transactions were $98.1 million, $97.4 million and $109.4 million for the years ended 2016, 2015 and 2014, respectively. Our recorded investment in WAVE was higher than our 50% share of the carrying values reported in WAVE’s consolidated financial statements by $166.6 million as of December 31, 2016 and $172.1 million as of December 31, 2015. These differences are due to our adoption of fresh-start reporting upon emergence from Chapter 11 in October 2006, while WAVE’s consolidated financial statements do not reflect fresh-start reporting. The differences are composed of the following fair value adjustments to assets: December 31, 2016 December 31, 2015 Property, plant and equipment $ 0.4 $ 0.4 Other intangibles 135.8 141.3 Goodwill 30.4 30.4 Total $ 166.6 $ 172.1 Other intangibles include customer relationships, trademarks and developed technology. Customer relationships are amortized over 20 years and developed technology is amortized over 15 years. Trademarks have an indefinite life. See Exhibit 99.1 for WAVE’s consolidated financial statements. Condensed financial data for WAVE is summarized below: December 31, 2016 December 31, 2015 Current assets $ 113.1 $ 118.7 Noncurrent assets 50.3 52.1 Current liabilities 40.7 23.3 Other noncurrent liabilities 244.6 248.9 2016 2015 2014 Net sales $ 393.7 $ 374.4 $ 392.5 Gross profit 208.7 187.4 185.1 Net earnings 158.9 144.4 142.2 See discussion in Note 26 to the Consolidated Financial Statements for additional information on this related party.

Intangible Assets

Intangible Assets	12 Months Ended
	Dec. 31, 2016
Goodwill And Intangible Assets Disclosure [Abstract]
Intangible Assets	NOTE 10. INTANGIBLE ASSETS We conduct our annual impairment testing of non-amortizing intangible assets during the fourth quarter. The 2016, 2015 and 2014 reviews concluded that no impairment charges were necessary. See Note 2 to the Consolidated Financial Statements for a discussion of our accounting policy for intangible assets. The following table details amounts related to our intangible assets as of December 31, 2016 and 2015: December 31, 2016 December 31, 2015 Estimated Useful Life Gross Carrying Amount Accumulated Amortization Gross Carrying Amount Accumulated Amortization Amortizing intangible assets Customer relationships 20 years $ 165.3 $ 84.9 $ 165.4 $ 76.7 Developed technology 15 years 82.8 55.4 82.2 49.9 Other Various 13.2 2.0 14.8 1.9 Total $ 261.3 $ 142.3 $ 262.4 $ 128.5 Non-amortizing intangible assets Trademarks and brand names Indefinite 314.4 313.3 Total intangible assets $ 575.7 $ 575.7 2016 2015 2014 Amortization expense $ 14.0 $ 14.2 $ 14.0 The expected annual amortization expense for the years 2017 through 2021 is approximately $14 million.

Other Non-Current Assets

Other Non-Current Assets	12 Months Ended
	Dec. 31, 2016
Other Assets Noncurrent Disclosure [Abstract]
Other Non-Current Assets	NOTE 11. OTHER NON-CURRENT ASSETS December 31, 2016 December 31, 2015 Cash surrender value of company-owned life insurance policies $ 52.7 $ 51.6 Fair value of derivative assets 7.6 - Other 4.6 5.4 Total other non-current assets $ 64.9 $ 57.0

Accounts Payable And Accrued Ex

Accounts Payable And Accrued Expenses	12 Months Ended
	Dec. 31, 2016
Payables And Accruals [Abstract]
Accounts Payable And Accrued Expenses	NOTE 12. ACCOUNTS PAYABLE AND ACCRUED EXPENSES December 31, 2016 December 31, 2015 Payables, trade and other $ 108.6 $ 127.5 Employment costs 33.7 44.7 Current portion of pension and postretirement benefit liabilities 12.7 14.3 Contingent liability related to discontinued operations 11.9 12.1 Other 30.2 32.5 Total accounts payable and accrued expenses $ 197.1 $ 231.1 The decrease in accrued employment costs as of December 31, 2016 in comparison to December 31, 2015 was due to employee compensation and severance accruals recorded in 2015 in connection with our planned separation of the flooring business.

Severance and Related Costs

Severance and Related Costs	12 Months Ended
	Dec. 31, 2016
Restructuring And Related Activities [Abstract]
Severance and Related Costs	NOTE 13. SEVERANCE AND RELATED COSTS In 2016 and 2015, we recorded $2.4 million and $5.3 million, respectively, in Unallocated Corporate for severance and related costs to reflect approximately 30 position eliminations (including our former Chief Executive Officer) as a result of our initiative to separate our flooring business from our ceiling business. These costs are reflected within Separation costs on the Consolidated Statements of Earnings and Comprehensive Income (Loss). In response to China market conditions, during the fourth quarter of 2015, we recorded $2.0 million in cost of goods sold and $0.9 million in SG&A expense for severance and related costs as a result of our decision to idle one of our plants in China effective during the fourth quarter of 2016. During 2016, we recorded an additional $3.9 million in costs of goods sold and $0.8 million in SG&A expense for severance and related costs as a result of the plant idling, which will result in approximately 190 position eliminations during the first quarter of 2017. In 2015, we also recorded $2.2 million in SG&A expense for severance and related costs to reflect approximately 30 position eliminations in Europe. The position eliminations were in response to poor construction market conditions in many parts of Europe.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Income Taxes	NOTE 14. INCOME TAXES The tax effects of principal temporary differences between the carrying amounts of assets and liabilities and their tax bases are summarized in the following table. Management believes it is more likely than not that the results of future operations will generate sufficient taxable income in the appropriate jurisdiction and foreign source income to realize deferred tax assets, net of valuation allowances. In arriving at this conclusion, we considered the profit before tax generated for the years 2014 through 2016, as well as future reversals of existing taxable temporary differences and projections of future profit before tax and foreign source income. We reduce the carrying amounts of deferred tax assets by a valuation allowance if, based on the available evidence, it is more likely than not that such assets will not be realized. The need to establish valuation allowances for deferred tax assets is assessed quarterly. In assessing the requirement for, and amount of, a valuation allowance in accordance with the more likely than not standard for all periods, we give appropriate consideration to all positive and negative evidence related to the realization of the deferred tax assets. This assessment considers, among other matters, the nature, frequency and severity of current and cumulative losses, forecasts of future profitability and foreign source income, the duration of statutory carryforward periods, and our experience with operating loss and tax credit carryforward expirations. A history of cumulative losses is a significant piece of negative evidence used in our assessment. If a history of cumulative losses is incurred for a tax jurisdiction, forecasts of future profitability are not used as positive evidence related to the realization of the deferred tax assets in the assessment. As of December 31, 2016 and 2015, we had $760.6 million and $863.1 million, respectively, of state net operating loss (“NOL”) carryforwards expiring between 2017 and 2036. In addition, as of December 31, 2016 and 2015, we had $149.0 million and $202.9 million, respectively, of foreign NOL carryforwards. As of December 31, 2016, $88.4 million of our foreign NOL carryforwards were available for carryforward indefinitely and $60.6 million expire between 2017 and 2034. As of December 31, 2016, we also had U.S. foreign tax credit (“FTC”) carryforwards of $22.1 million on a gross basis, $19.3 million when netted with unrecognized tax benefits that expire between 2017 and 2022. U.S. FTC carryforwards as of December 31, 2015 were $27.1 million on a gross basis, $12.3 million when netted with unrecognized tax benefits. As of December 31, 2016 and 2015, we had valuation allowances of $60.5 million and $69.1 million, respectively. As of December 31, 2016, our valuation allowance consisted of $0.8 million for federal deferred tax assets related to FTC carryforwards, $16.5 million for state deferred tax assets, primarily operating loss carryforwards, and $43.2 million for foreign deferred tax assets, primarily foreign operating loss carryforwards. The valuation allowance for foreign deferred tax assets of $43.2 million as of December 31, 2016 decreased $12.1 million in comparison to December 31, 2015 primarily a result of additional foreign income in 2016. The valuation allowance for state deferred tax assets of $16.5 million as of December 31, 2016 increased $2.7 million in comparison to December 31, 2015 due to effects from the separation of AFI. We estimate we will need to generate future federal taxable income of $63.1 million, including foreign source income of $52.9 million, to fully realize the FTCs before they expire in 2022. We estimate we will need to generate future taxable income of approximately $772.7 million for state income tax purposes during the respective realization periods (ranging from 2017 to 2036) in order to fully realize the net deferred income tax assets discussed above. Our ability to utilize deferred tax assets may be impacted by certain future events, such as changes in tax legislation or insufficient future taxable income prior to expiration of certain deferred tax assets. December 31, 2016 December 31, 2015 Deferred income tax assets (liabilities) Net operating losses $ 71.9 $ 83.7 Postretirement benefits 38.1 45.4 Pension benefit liabilities 45.2 74.0 Deferred compensation 17.8 24.2 Foreign exchange unrealized 1.3 18.8 Foreign tax credit carryforwards 19.3 12.3 State tax credit carryforwards 9.1 9.7 Other 16.9 30.4 Total deferred income tax assets 219.6 298.5 Valuation allowances (60.5 ) (69.1 ) Net deferred income tax assets 159.1 229.4 Intangibles (211.8 ) (214.3 ) Accumulated depreciation (51.7 ) (52.5 ) Prepaid pension costs (18.8 ) - Inventories (8.8 ) (7.5 ) Other (9.1 ) (13.1 ) Total deferred income tax liabilities (300.2 ) (287.4 ) Net deferred income tax liabilities $ (141.1 ) $ (58.0 ) Deferred income taxes have been classified in the Consolidated Balance Sheet as: Deferred income tax assets - current $ - $ 29.8 Deferred income tax assets - noncurrent 15.4 19.5 Deferred income tax liabilities - current - (0.6 ) Deferred income tax liabilities - noncurrent (156.5 ) (106.7 ) Net deferred income tax liabilities $ (141.1 ) $ (58.0 ) 2016 2015 2014 Details of taxes Earnings (loss) from continuing operations before income taxes: Domestic $ 144.9 $ 143.0 $ 187.7 Foreign (18.3 ) (38.2 ) (39.3 ) Elimination of dividends from foreign subsidiaries 17.7 (24.7 ) - Total $ 144.3 $ 80.1 $ 148.4 Income tax expense (benefit): Current: Federal $ 2.5 $ 25.1 $ 26.6 Foreign 11.7 5.6 8.1 State (0.5 ) 0.2 1.4 Total current 13.7 30.9 36.1 Deferred: Federal 22.5 12.7 21.0 Foreign (2.2 ) (0.5 ) 0.1 State 16.4 10.4 12.1 Total deferred 36.7 22.6 33.2 Total income tax expense $ 50.4 $ 53.5 $ 69.3 We reviewed our position with regards to foreign unremitted earnings and determined that unremitted earnings would continue to be permanently reinvested. Accordingly we have not recorded U.S. income or foreign withholding taxes on approximately $275.9 million of undistributed earnings of foreign subsidiaries that could be subject to taxation if remitted to the U.S. because we currently plan to keep these amounts permanently invested overseas. It is not practicable to calculate the residual income tax which would result if these basis differences reversed due to the complexities of the tax law and the hypothetical nature of the calculations. 2016 2015 2014 Reconciliation to U.S. statutory tax rate Continuing operations tax at statutory rate $ 50.5 $ 28.0 $ 51.9 Increase in valuation allowances on deferred foreign income tax assets 16.2 19.3 18.7 State income tax expense, net of federal benefit 3.8 4.7 4.8 Separation costs 15.1 2.9 - Permanent book/tax differences (2.6 ) 3.0 (1.5 ) Increase in valuation allowances on deferred domestic income tax assets 0.8 4.1 3.0 Domestic production activities (3.1 ) (5.1 ) (5.8 ) Tax on foreign and foreign-source income (3.4 ) - (0.7 ) Federal statute closure (15.2 ) - - Benefit from write-off of historical tax basis of foreign subsidiary (13.7 ) - - Other 2.0 (3.4 ) (1.1 ) Tax expense at effective rate $ 50.4 $ 53.5 $ 69.3 As a result of the separation of AFI we incurred costs directly related to the separation transaction. Certain costs incurred to facilitate the transaction are not deductible for federal income tax purposes and result in a permanent difference. We recognize the tax benefits of an uncertain tax position only if those benefits are more likely than not to be sustained based on existing tax law. Additionally, we establish a reserve for tax positions that are more likely than not to be sustained based on existing tax law, but uncertain in the ultimate benefit to be sustained upon examination by the relevant taxing authorities. Unrecognized tax benefits are subsequently recognized at the time the more likely than not recognition threshold is met, the tax matter is effectively settled or the statute of limitations for the relevant taxing authority to examine and challenge the tax position has expired, whichever is earlier. We have $86.9 million of Unrecognized Tax Benefits (“UTB”) as of December 31, 2016, $63.1 million ($61.6 million, net of federal benefit) of this amount, if recognized in future periods, would impact the reported effective tax rate. It is reasonably possible that certain UTB’s may increase or decrease within the next twelve months due to tax examination changes, settlement activities, expirations of statute of limitations, or the impact on recognition and measurement considerations related to the results of published tax cases or other similar activities. Over the next twelve months we estimate that UTB’s may decrease by $0.1 million related to state statutes expiring and increase by $3.7 million due to uncertain tax positions expected to be taken on domestic tax returns. We account for all interest and penalties on uncertain income tax positions as income tax expense. We reported $4.0 million of interest and penalty exposure as noncurrent income tax payable in the Consolidated Balance Sheet as of December 31, 2016. We had the following activity for UTB’s for the years ended December 31, 2016, 2015 and 2014: 2016 2015 2014 Unrecognized tax benefits balance at January 1, $ 150.6 $ 142.6 $ 145.2 Gross change for current year positions 2.3 10.4 10.5 Increases for prior period positions 0.2 1.9 2.9 Decrease for prior period positions (12.8 ) (4.1 ) (14.1 ) Decrease due to settlements and payments - - (1.2 ) Decrease due to statute expirations (53.4 ) (0.2 ) (0.7 ) Unrecognized tax benefits balance at December 31, $ 86.9 $ 150.6 $ 142.6 We conduct business globally, and as a result, we file income tax returns in the U.S., various states and international jurisdictions. In the normal course of business, we are subject to examination by taxing authorities throughout the world in such major jurisdictions as Australia, Canada, Germany, India, the Netherlands, the United Kingdom and the United States. Generally, we have open tax years subject to tax audit on average of between three years and six years. The audit of our 2009 U.S. income tax return was finalized by the IRS in 2015. The statute of limitations is no longer open for U.S. federal returns before 2013. With few exceptions, the statute of limitations is no longer open for state or non-U.S. income tax examinations for the years before 2011. We have not significantly extended any open statutes of limitation for any major jurisdiction and have reviewed and accrued for, where necessary, tax liabilities for open periods. 2016 2015 2014 Other taxes Payroll taxes $ 26.5 $ 27.4 $ 30.6 Property, franchise and capital stock taxes 6.2 6.4 6.4

Debt

Debt	12 Months Ended
	Dec. 31, 2016
Debt Disclosure [Abstract]
Debt	NOTE 15. DEBT December 31, 2016 Weighted Average Interest Rate for 2016 December 31, 2015 Weighted Average Interest Rate for 2015 Term loan A due 2021 $ 600.0 3.29 % $ 496.0 3.24 % Term loan B due 2023 248.1 4.58 % 461.9 3.50 % Tax exempt bonds due 2041 35.0 0.45 % 35.1 0.87 % Principal debt outstanding 883.1 3.54 % 993.0 3.28 % Unamortized debt financing costs (9.5 ) (4.7 ) Long-term debt 873.6 3.54 % 988.3 3.28 % Less current portion and short-term debt 25.0 3.42 % 52.1 3.26 % Total long-term debt, less current portion $ 848.6 3.54 % $ 936.2 3.28 % The weighted average interest rates above are inclusive of our interest rate swaps. See Note 18 to the Consolidated Financial Statements for further information. On April 1, 2016, we refinanced our $1,275.0 million senior credit facility, utilizing a $50.0 million cash dividend from AFI and cash on hand to pay down a portion of the debt outstanding. The $1,050.0 million new credit facility is composed of a $200.0 million revolving credit facility (with a $150.0 million sublimit for letters of credit), a $600.0 million Term Loan A and a $250.0 million Term Loan B. The terms of the credit facility resulted in a lower interest rate spread for both the revolving credit facility and Term Loan A (2.00% vs. 2.50%) and a higher spread for Term Loan B (3.25% vs. 2.50%). In addition, we lowered the interest rate floor on the Term Loan B from 1.00% to 0.75%. We also extended the maturity of both the revolving credit facility and Term Loan A from March 2018 to April 2021 and of Term Loan B from November 2020 to April 2023. Finally, in April 2016, we established a $25.0 million letter of credit facility with the Bank of Nova Scotia, also known as our bi-lateral facility. In connection with the refinancing, we paid $9.3 million of bank, legal and other fees, of which $8.1 million were capitalized and recorded as a component of long-term debt and are being amortized into interest expense over the lives of the underlying loans. Additionally, we wrote off $1.1 million of unamortized debt financing costs, included as a component of interest expense, in 2016 related to our previous credit facility. Finally, in connection with the refinancing, we executed new interest rate swaps. See Note 18 for additional details. Under our refinanced senior credit facility we are subject to year-end leverage tests that may trigger mandatory prepayments. If our ratio of consolidated funded indebtedness, minus AWI and domestic subsidiary unrestricted cash and cash equivalents up to $100.0 million, to consolidated earnings before interest, taxes, depreciation and amortization (“EBITDA”) (“Consolidated Net Leverage Ratio”) is greater than 3.5 to 1.0, the prepayment amount would be 50% of fiscal year Consolidated Excess Cash Flow. These annual payments would be made in the first quarter of the following year. No payment will be required in 2017 under the senior credit facility. As of December 31, 2016, we were in compliance with all covenants of the amended senior credit facility. Our debt agreements include other restrictions, including restrictions pertaining to the acquisition of additional debt, the redemption, repurchase or retirement of our capital stock, payment of dividends, and certain financial transactions as it relates to specified assets. We currently believe that default under these covenants is unlikely. Fully borrowing under our revolving credit facility would not violate these covenants. As of December 31, 2016 our outstanding long-term debt included a $35.0 million variable rate, tax-exempt industrial development bond that financed the construction of a plant in prior years. This bond has a scheduled final maturity of 2041 and is remarketed by an agent on a regular basis at a market-clearing interest rate. Any portion of the bond that is not successfully remarketed by the agent is required to be repurchased by AWI. This bond is backed by letters of credit which will be drawn if a portion of the bond is not successfully remarketed. We have not had to repurchase the bond. Our foreign subsidiaries had available lines of credit totaling $4.1 million as of December 31, 2016. These lines of credit are uncommitted, and poor operating results or credit concerns at the related foreign subsidiaries could result in the lines being withdrawn by the lenders. We have historically been able to maintain and, as needed, replace credit facilities to support our non-U.S. operations. As of December 31, 2016 there were no borrowings outstanding under these lines of credit. In March 2016, we amended and decreased our $100.0 million Accounts Receivable Securitization Facility with the Bank of Nova Scotia (the “funding entity”) to $40.0 million to reflect a lower anticipated receivables balance in connection with the separation of AFI, and we extended the maturity date from December 2017 to March 2019. Under our Accounts Receivable Securitization Facility we sell accounts receivables to Armstrong Receivables Company, LLC (“ARC”), a Delaware entity that is consolidated in these financial statements. ARC is a 100% wholly owned single member LLC special purpose entity created specifically for this transaction; therefore, any receivables sold to ARC are not available to the general creditors of AWI. ARC then sells an undivided interest in the purchased accounts receivables to the funding entity. This undivided interest acts as collateral for drawings on the facility. Any borrowings under this facility are obligations of ARC and not AWI. ARC contracts with and pays a servicing fee to AWI to manage, collect and service the purchased accounts receivables. As of December 31, 2016, there were no outstanding borrowings on the accounts receivable securitization facility. All new receivables under the program generated by the originators are continuously purchased by ARC with the proceeds from collections of receivables previously purchased. As of December 31, 2016 we had no borrowings under this facility. None of our outstanding debt as of December 31, 2016 was secured with buildings and other assets. The credit lines under our revolving credit facility and at our foreign subsidiaries are subject to immaterial annual commitment fees. Scheduled payments of long-term debt: 2017 $ 25.0 2018 32.5 2019 55.0 2020 62.5 2021 437.5 2022 and later 270.6 We utilize lines of credit and other commercial commitments in order to ensure that adequate funds are available to meet operating requirements. Letters of credit are currently arranged through our revolving credit facility, our bi-lateral facility and our securitization facility. In addition, our foreign subsidiaries’ available lines of credit are available for letters of credit and guarantees. Letters of credit are issued to third party suppliers, insurance and financial institutions and typically can only be drawn upon in the event of AWI’s failure to pay its obligations to the beneficiary. In February 2017, we repriced the interest rate on our $248.1 million Term Loan B borrowing, resulting in a lower LIBOR spread (2.75% vs. 3.25%). The maturity date remained unchanged along with all other terms and conditions. In connection with the repricing we paid $0.6 million of bank, legal and other fees, the majority of which were capitalized. The following table presents details related to our letters of credit: As of December 31, 2016 Financing Arrangement Limit Used Available Revolving credit facility $ 150.0 $ - $ 150.0 Bi-lateral facility 25.0 19.2 5.8 Accounts receivable securitization facility 32.2 36.2 (4.0 ) Foreign lines of credit 0.2 0.1 0.1 Total $ 207.4 $ 55.5 $ 151.9 The maximum limit for letters of credit availability under our accounts receivable securitization facility is subject to securitized accounts receivable balances and other collateral adjustments. As of December 31, 2016, $4.0 million of letters of credits issued under our accounts receivable securitization facility in excess of our maximum limit were classified as restricted cash and reported as a component of Cash and cash equivalents on our Consolidated Balance Sheets. This restriction will lapse upon replacement of collateral with accounts receivables and/or upon a change in the letter of credit limit as a result of higher securitized accounts receivable balances.

Pension and Other Benefit Progr

Pension and Other Benefit Programs	12 Months Ended
	Dec. 31, 2016
Compensation And Retirement Disclosure [Abstract]
Pensions and Other Benefit Programs	NOTE 16. PENSION AND OTHER BENEFIT PROGRAMS DEFINED CONTRIBUTION BENEFIT PLANS We sponsor several defined contribution plans, which cover substantially all U.S. and non-U.S. employees. Eligible employees may defer a portion of their pre-tax covered compensation on an annual basis. We match employee contributions up to pre-defined percentages. Employee contributions are 100% vested. Employer contributions are vested based on pre-defined requirements. Costs for worldwide defined contribution benefit plans were $10.2 million in 2016, $9.2 million in 2015 and $10.4 million in 2014. DEFINED BENEFIT PENSION PLANS Benefits from defined benefit pension plans are based primarily on an employee's compensation and years of service. We fund our pension plans when appropriate. Our U.S. defined benefit pension plans include both the qualified, funded Retirement Income Plan (“RIP”) and the Retirement Benefit Equity Plan, which is a nonqualified, unfunded plan designed to provide pension benefits in excess of the limits defined under Sections 415 and 401(a)(17) of the Internal Revenue Code. Our non-U.S. defined benefit pension plans cover employees in a number of foreign countries that utilize assumptions which are consistent with, but not identical to, those of the U.S. plans. The following tables summarize the balance sheet impact of our defined benefit pension plans, as well as the related benefit obligations, assets, funded status and rate assumptions. We use a December 31, measurement date for all our defined benefit pension plans. U.S. Pension Plans Non-U.S. Pension Plans 2016 2015 2016 2015 Change in benefit obligation: Benefit obligation as of beginning of period $ 1,918.1 $ 2,069.9 $ 234.0 $ 261.4 Service cost 10.1 16.3 2.2 2.4 Interest cost 69.8 80.9 6.9 8.3 Plan participants' contributions - - 0.1 0.1 Settlements and curtailments - - 0.2 - Foreign currency translation adjustment - - (35.6 ) (16.5 ) Actuarial loss (gain) 0.6 (130.5 ) 37.1 (6.7 ) Benefits paid (111.0 ) (118.5 ) (9.4 ) (15.0 ) Separation of AFI (365.2 ) - (20.5 ) - Benefit obligation as of end of period $ 1,522.4 $ 1,918.1 $ 215.0 $ 234.0 U.S. Pension Plans Non-U.S. Pension Plans 2016 2015 2016 2015 Change in plan assets: Fair value of plan assets as of beginning of period $ 1,837.2 $ 1,986.3 $ 210.9 $ 232.4 Actual return on plan assets 144.7 (34.2 ) 40.8 3.3 Employer contribution 4.2 3.6 2.9 3.4 Plan participants' contributions - - 0.1 0.1 Foreign currency translation adjustment - - (35.3 ) (13.3 ) Benefits paid (111.0 ) (118.5 ) (9.4 ) (15.0 ) Separation of AFI (362.2 ) - (19.6 ) - Fair value of plan assets as of end of period $ 1,512.9 $ 1,837.2 $ 190.4 $ 210.9 Funded status of the plans $ (9.5 ) $ (80.9 ) $ (24.6 ) $ (23.1 ) U.S. Pension Plans Non-U.S. Pension Plans 2016 2015 2016 2015 Weighted-average assumptions used to determine benefit obligations at end of period: Discount rate 4.12 % 4.40 % 2.40 % 3.40 % Rate of compensation increase 3.10 % 3.10 % 3.10 % 2.60 % Weighted-average assumptions used to determine net periodic benefit cost for the period: Discount rate 4.40 % 4.05 % 3.10 % 3.40 % Expected return on plan assets 6.75 % 7.00 % 4.20 % 4.50 % Rate of compensation increase 3.10 % 3.10 % 2.60 % 2.60 % Effective December 31, 2016, we elected to measure the U.S. Pension Plans’ benefit obligation by applying spot rates along the yield curve to the relevant projected cash flows, as we believe this provides a better measurement of these costs. This change in methodology requires management to utilize different discount rates to measure service cost and interest cost. We have accounted for this change in discount rate methodology as a change in accounting estimate and, accordingly have applied it on a prospective basis. This change did not affect the measurement of the total benefit obligation. Basis of Rate-of-Return Assumption Long-term asset class return assumptions are determined based on input from investment professionals on the expected performance of the asset classes over 10 to 30 years. The forecasts were averaged to come up with consensus passive return forecasts for each asset class. Incremental components were added for the expected return from active management and asset class rebalancing based on historical information obtained from investment consultants. For the U.S. pension plan, these forecasted gross returns were reduced by estimated management fees and expenses, yielding a long-term return forecast of 6.75% and 7.00% for the years ended December 31, 2016 and 2015, respectively. For the non-U.S. pension plan, these forecast asset class returns were weighted by the plans’ target asset class weights, yielding a long-term return forecast of 4.20% and 4.50% for the years ended December 31, 2016 and 2015, respectively. The accumulated benefit obligation for the U.S. defined benefit pension plans was $1,518.0 million and $1,896.8 million as of December 31, 2016 and 2015, respectively. The accumulated benefit obligation for the non-U.S. defined benefit pension plans was $211.7 million and $226.1 million as of December 31, 2016 and 2015, respectively. U.S. Pension Plans Non-U.S. Pension Plans 2016 2015 2016 2015 Pension plans with benefit obligations in excess of assets Projected benefit obligation, December 31 $ 58.2 $ 1,918.1 $ 40.9 $ 58.3 Accumulated benefit obligation, December 31 58.1 1,896.8 39.4 52.7 Fair value of plan assets, December 31 - 1,837.2 8.3 26.8 The components of the pension cost are as follows: U.S. Pension Plans Non-U.S. Pension Plans 2016 2015 2014 2016 2015 2014 Service cost of benefits earned during the period $ 10.1 $ 16.3 $ 14.4 $ 2.2 $ 2.4 $ 2.5 Interest cost on projected benefit obligation 69.8 80.9 85.7 6.9 8.3 10.5 Expected return on plan assets (110.6 ) (140.3 ) (139.3 ) (7.8 ) (9.0 ) (11.5 ) Amortization of prior service cost 1.6 1.9 1.9 - - - Recognized net actuarial loss 48.3 72.8 42.4 1.2 2.8 2.1 Net periodic pension cost $ 19.2 $ 31.6 $ 5.1 $ 2.5 $ 4.5 $ 3.6 Less: Discontinued operations 2.2 11.0 1.2 - (0.2 ) (0.1 ) Net periodic pension cost, continuing operations $ 17.0 $ 20.6 $ 3.9 $ 2.5 $ 4.7 $ 3.7 Excluded from non-U.S. net periodic pension costs in the preceding table were $0.5 million of settlement charges recorded in 2015. Investment Policies U.S. Pension Plans The RIP’s primary investment objective is to maintain the funded status of the plan such that the likelihood that we will be required to make significant contributions to the plan is limited. This objective is expected to be achieved by (a) investing a substantial portion of the plan assets in high quality corporate bonds whose duration is at least equal to that of the plan’s liabilities, (b) investing in publicly traded equities in order to increase the ratio of plan assets to liabilities over time, (c) limiting investment return volatility by diversifying among additional asset classes with differing expected rates of return and return correlations, and (d) using derivatives to either implement investment positions efficiently or to hedge risk but not to create investment leverage. Non-U.S. Pension Plans Each of the funded non-U.S. pension plans’ primary investment objectives is to earn sufficient long-term returns on investments both to increase the ratio of the assets to liabilities in order for the plans to meet their benefits obligations and to minimize required contributions to the plans. This is expected to be achieved by (a) utilizing long duration bonds to limit the volatility of the plans’ asset/liability ratios, (b) investing primarily in publicly-traded equities, and (c) limiting return volatility by diversifying investments among additional asset classes with differing expected rates of return and return correlations. Each asset class utilized by the U.S. and non-U.S. defined benefit pension plans have defined asset allocation targets and allowable ranges. The table below shows the asset allocation targets and the December 31, 2016 and 2015 positions for each asset class: U.S. Pension Plans Non-U.S. Pension Plans Target Target Weight at Weight at December 31, Position at December 31, December 31, Position at December 31, Asset Class 2016 2016 2015 2016 2016 2015 Long duration bonds 59.0 % 55.0 % 59.0 % 50.0 % 49.0 % 46.0 % Equities 30.0 % 26.0 % 26.0 % 43.0 % 38.0 % 42.0 % High yield bonds and real assets 6.0 % 7.0 % 8.0 % - - - Real estate and private equity 4.0 % 5.0 % 5.0 % 7.0 % 7.0 % 7.0 % Other 1.0 % 7.0 % 2.0 % - 6.0 % 5.0 % Pension plan assets are required to be reported and disclosed at fair value. Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Three levels of inputs may be used to measure fair value: Level 1 - Quoted prices in active markets for identical assets or liabilities. Level 2 - Observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets; quoted prices for identical or similar assets and liabilities in markets that are not active; or other inputs that are observable or can be corroborated by observable market data. Level 3 - Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. This includes certain pricing models, discounted cash flow methodologies and similar techniques that use significant unobservable inputs. The asset’s fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques used need to maximize the use of observable inputs and minimize the use of unobservable inputs. The following table sets forth by level within the fair value hierarchy a summary of the U.S. and non-U.S. defined benefit pension plan assets measured at fair value on a recurring basis: Value at December 31, 2016 U.S. Pension Plans Non-U.S. Pension Plans Description Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Bonds $ - $ 831.7 $ - $ 831.7 $ 1.0 $ 92.9 $ - $ 93.9 Equities 329.0 60.1 - 389.1 1.0 71.5 - 72.5 High yield bonds - 67.6 - 67.6 - - - - Real assets - 32.5 - 32.5 - - - - Real estate - - - - 0.1 0.7 - 0.8 Other investments - - 2.8 2.8 - 0.6 4.6 5.2 Cash and other short-term investments 34.2 78.2 - 112.4 5.9 - - 5.9 Net assets measured at fair value $ 363.2 $ 1,070.1 $ 2.8 $ 1,436.1 $ 8.0 $ 165.7 $ 4.6 $ 178.3 Investments measured at net asset value 76.8 12.1 Net assets $ 1,512.9 $ 190.4 Value at December 31, 2015 U.S. Pension Plans Non-U.S. Pension Plans Description Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Bonds $ - $ 1,069.9 $ - $ 1,069.9 $ 1.1 $ 95.9 $ - $ 97.0 Equities 443.0 64.0 - 507.0 1.1 88.0 - 89.1 High yield bonds - 82.0 - 82.0 - - - - Real assets - 32.1 - 32.1 - - - - Real estate - - - - 0.1 0.7 - 0.8 Other investments - - 2.9 2.9 - 0.9 4.9 5.8 Cash and other short-term investments 12.8 48.0 - 60.8 3.4 - - 3.4 Net assets measured at fair value $ 455.8 $ 1,296.0 $ 2.9 $ 1,754.7 $ 5.7 $ 185.5 $ 4.9 $ 196.1 Investments measured at net asset value 82.5 14.8 Net assets $ 1,837.2 $ 210.9 U.S. pension plan Level 3 assets remained relatively unchanged from December 31, 2015 to December 31, 2016, with the change in Level 3 assets during 2016 due primarily to unrealized gains and losses. Non-U.S. pension plan Level 3 assets decreased from December 31, 2015 to December 31, 2016 due mainly to the change in currency conversion from the Euro to the U.S. dollar. The U.S. and non-U.S. defined benefit pension plans have investments in alternative investment funds as of December 31, 2016 and December 31, 2015 which are reported at fair value. Certain investments that are measured at fair value using the net asset value (“NAV”) per share (or its equivalent) practical expedient have not been categorized in the fair value hierarchy. The fair value amounts presented in the tables above are intended to permit reconciliation of the fair value hierarchy to the total fair value of plan assets. We have concluded that the NAV reported by the underlying fund approximates the fair value of the investment. These investments are redeemable at NAV under agreements with the underlying funds. However, it is possible that these redemption rights may be restricted or eliminated by the funds in the future in accordance with the underlying fund agreements. Due to the nature of the investments held by the funds, changes in market conditions and the economic environment may significantly impact the NAV of the funds and, consequently, the fair value of the U.S. and non-U.S. defined benefit pension plan assets’ interest in the funds. Furthermore, changes to the liquidity provisions of the funds may significantly impact the fair value of the U.S. and non-U.S. defined benefit pension plan assets’ interest in the funds. As of December 31, 2016, there were no restrictions on redemption of these investments. During 2016, management re-evaluated the classification of its U.S. and non-U.S. plan investments relative to the determination of whether certain plan investments have a readily determinable fair value. Based on that re-evaluation, certain plan investments as of December 31, 2015 previously disclosed using the NAV practical expedient and excluded from the fair value hierarchy have been corrected and included within the above tables as Level 2 investments. This change in disclosure is not considered to be material to the consolidated financial statements and is consistent with the presentation amounts as of December 31, 2016. The following table sets forth a summary of the U.S. and non-U.S. defined benefit pension plan investments measured at NAV: Value at December 31, 2016 U.S. Pension Plans Non-U.S. Pension Plans Description Fair Value Unfunded Commitments Fair Value Unfunded Commitments Redemption Frequency Redemption Notice Period Real estate $ 73.3 $ 2.2 $ 12.1 $ - Monthly/Quarterly 2-90 Days Other investments 3.5 0.9 - - None None Investments measured at net asset value $ 76.8 $ 3.1 $ 12.1 $ - Value at December 31, 2015 U.S. Pension Plans Non-U.S. Pension Plans Description Fair Value Unfunded Commitments Fair Value Unfunded Commitments Redemption Frequency Redemption Notice Period Real estate $ 79.7 $ 2.3 $ 14.8 $ - Monthly/Quarterly 2-90 Days Other investments 2.8 1.5 - - None None Investments measured at net asset value $ 82.5 $ 3.8 $ 14.8 $ - Following is a description of the valuation methodologies used for assets measured at fair value and at NAV. Bonds: Consists of registered investment funds and common and collective trust funds investing in fixed income securities tailored to institutional investors. For the non-U.S. plans, this category also includes investments in individual corporate and government bonds. There are no readily available market quotations for registered investment company funds. The fair value of investment funds and common and collective trust funds have been classified as Level 2 assets above as their values were derived based on the underlying securities in the fund’s portfolio which is typically the amount which the fund might reasonably expect to receive for the security upon a current sale. Investments in individual bonds were measured at fair value based on the closing price reported in the active market in which the bond is traded and investments in pooled funds traded in a non-active market were valued at bid price and classified as Level 2 assets above. Equities: Consists of domestic and international investments in common and preferred stocks as well as investments in registered investment funds investing in equities tailored to institutional investors. Individual common and preferred stocks are valued at the closing price reported on the active market on which the individual securities are traded and classified as Level 1 assets above. There are no readily available market quotations for registered investment company funds. The fair value, classified as Level 2 assets above, is based on the underlying securities in the fund’s portfolio which is typically the amount which the fund might reasonably expect to receive for the security upon a current sale. High yield bonds: Consists of an investment in a registered investment fund investing in fixed income securities tailored to institutional investors. There are no readily available market quotations for registered investment company funds. The fair value is based on the underlying securities in the fund’s portfolio which is typically the amount which the fund might reasonably expect to receive for the security upon a current sale. Real assets: Consists of a fund that has underlying investments in commodity futures contracts, as well as cash and fixed income instruments used as collateral instruments against the commodity future contracts. The futures contracts are considered real assets as the underlying securities include natural resources such as oil or precious metals, livestock, or raw agricultural products. The fair value is based on the underlying securities in the fund’s portfolio which is typically the amount which the fund might reasonably expect to receive for the security upon a current sale. Real estate: The U.S. pension plan’s real estate investments are comprised of both open-end and closed-end funds. There are no readily available market quotations for these real estate funds. These investments were measured at fair value using the NAV practical expedient. For the non-U.S. plans, real estate investments are comprised of individual and pooled real estate mutual funds. Certain real estate funds were measured at fair value and classified as Level 2 assets above as the funds were valued at the closing price reported on the active market on which the individual funds are traded. Certain real estate funds were measured at fair value using the NAV practical expedient as no readily available market quotations exist for these real estate funds. Other investments: For the U.S. pension plan, consists of investments in a group insurance annuity contract and a limited partnership. Investments in the group insurance annuity contract were classified as Level 3 assets and measured at fair value by discounting the related cash flows based on current yields of similar instruments with comparable durations while considering the credit-worthiness of the issuer. The investments in the limited partnership were measured at fair value using the NAV practical expedient. For the non-U.S. pension plans, consists primarily of an investment in individual life insurance policies. These investments, classified as Level 3 assets above, were measured at fair value based on an actuarial reserve calculated using life tables and by discounting the related cash flows based on a fixed interest rate. Cash and other short-term investments : Cash and short term investments consist primarily of cash and cash equivalents, and plan receivables/payables. The carrying amounts of cash and cash equivalents and receivables/payables approximate fair value due to the short-term nature of these instruments. Other payable and receivables consist primarily of margin on an account for a fund, accrued fees and receivables related to investment positions liquidated for which proceeds had not been received as of December 31. U.S. DEFINED BENEFIT RETIREE HEALTH AND LIFE INSURANCE PLANS We fund postretirement benefits on a pay-as-you-go basis, with the retiree paying a portion of the cost for health care benefits by means of deductibles and contributions. The following tables summarize the balance sheet impact of the U.S. postretirement benefit pension plan, as well as the related benefit obligations, funded status and rate assumptions. We use a December 31, measurement date for all our defined benefit postretirement benefit plans. 2016 2015 U.S. defined-benefit retiree health and life insurance plans Change in benefit obligation: Benefit obligation as of beginning of period $ 190.3 $ 221.4 Service cost 0.4 0.9 Interest cost 4.7 8.1 Plan participants' contributions 3.2 4.6 Actuarial (gain) (7.7 ) (22.7 ) Benefits paid (11.5 ) (22.0 ) Separation of AFI (86.3 ) - Benefit obligation as of end of period $ 93.1 $ 190.3 2016 2015 Change in plan assets: Fair value of plan assets as of beginning of period $ - $ - Employer contribution 8.3 17.4 Plan participants' contributions 3.2 4.6 Benefits paid (11.5 ) (22.0 ) Fair value of plan assets as of end of period $ - $ - Funded status of the plans $ (93.1 ) $ (190.3 ) 2016 2015 U.S. defined-benefit retiree health and life insurance plans Weighted-average discount rate used to determine benefit obligations at end of period 4.10 % 4.25 % Weighted-average discount rate used to determine net periodic benefit cost for the period 4.17 % 3.90 % Effective December 31, 2016 and similar to the election we made for our U.S. pension plans, we elected to measure the U.S. postretirement benefit plan’s benefit obligation by applying spot rates along the yield curve to the relevant projected cash flows, as we believe this provides a better measurement of these costs. We have accounted for this change in discount rate methodology as a change in accounting estimate and, accordingly have applied it on a prospective basis. This change did not affect the measurement of the total benefit obligation. The components of postretirement benefits costs are as follows: 2016 2015 2014 U.S. defined-benefit retiree health and life insurance plans Service cost of benefits earned during the period $ 0.4 $ 0.9 $ 0.9 Interest cost on accumulated postretirement benefit obligation 4.7 8.1 10.9 Amortization of prior service (credit) (0.3 ) (0.6 ) (0.6 ) Amortization of net actuarial gain (6.1 ) (7.8 ) (4.2 ) Net periodic postretirement benefit (credit) cost $ (1.3 ) $ 0.6 $ 7.0 Less: Discontinued operations (0.2 ) 0.8 3.7 Net periodic postretirement benefit (credit) cost, continuing operations $ (1.1 ) $ (0.2 ) $ 3.3 For measurement purposes, an average rate of annual increase in the per capita cost of covered health care benefits of 7.2% for pre-65 retirees and 8.5% to 9.3% for post-65 retirees (depending on plan type) was assumed for 2017, decreasing ratably to an ultimate rate of 4.5% in 2025. Assumed health care cost trend rates can 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: One percentage point Increase Decrease U.S. defined benefit retiree health and life insurance benefits plans Effect on total service and interest cost components $ (0.1 ) $ - Effect on postretirement benefit obligation (0.8 ) 0.5 Amounts recognized in assets (liabilities) on the consolidated balance sheets at year end consist of: U.S. Pension Plans Non-U.S. Pension Plans Retiree Health and Life Insurance Benefits 2016 2015 2016 2015 2016 2015 Prepaid pension costs $ 48.7 $ - $ 7.9 $ 8.3 $ - $ - Accounts payable and accrued expenses (3.9 ) (4.0 ) (0.5 ) (0.7 ) (8.3 ) (9.6 ) Postretirement benefit liabilities - - - - (84.8 ) (87.2 ) Pension benefit liabilities (54.3 ) (31.4 ) (32.0 ) (30.7 ) - - Net amount recognized $ (9.5 ) $ (35.4 ) $ (24.6 ) $ (23.1 ) $ (93.1 ) $ (96.8 ) Pre-tax amounts recognized in accumulated other comprehensive (loss) income at year end consist of: U.S. Pension Plans Non-U.S. Pension Plans Retiree Health and Life Insurance Benefits 2016 2015 2016 2015 2016 2015 Net actuarial (loss) gain $ (553.5 ) $ (775.6 ) $ (22.4 ) $ (26.6 ) $ 51.7 $ 91.5 Prior service (cost) credit (1.5 ) (3.9 ) (0.6 ) (0.6 ) 0.1 0.6 Accumulated other comprehensive (loss) income $ (555.0 ) $ (779.5 ) $ (23.0 ) $ (27.2 ) $ 51.8 $ 92.1 For U.S. pension plans, we expect to amortize $18.1 million of previously unrecognized prior service cost and net actuarial losses into pension cost in 2017 and expect contribute $3.9 million in 2017. For non-U.S. pension plans, we expect to amortize $1.3 million of previously unrecognized net actuarial losses and unrecognized prior service cost into pension cost in 2017 and expect to contribute $2.7 million in 2017. For our U.S. postretirement benefit plans, we expect to amortize $3.6 million of previously unrecognized net actuarial gains and prior service credits into postretirement benefit cost in 2017 and expect to contribute $8.4 million in 2017. The following benefit payments, which reflect expected future service, as appropriate, are expected to be paid over the next ten years for our U.S. plans: U.S. Pension Benefits (1) Non-U.S. Pension Benefits Retiree Health and Life Insurance Benefits, Net 2017 $ 109.6 $ 6.5 $ 8.4 2018 108.7 6.7 8.2 2019 108.3 7.3 7.8 2020 106.8 7.7 7.4 2021 105.8 8.1 7.0 2022 - 2026 508.8 44.0 31.3 (1) We were not required and did not make contributions to the RIP during 2016 or 2015 as, based on guidelines established by the Pension Benefit Guaranty Corporation, the RIP had sufficient assets to fund its distribution obligations. Benefit payments to participants have been made directly from the RIP to participants from the assets of the plan.

Financial Instruments

Financial Instruments	12 Months Ended
	Dec. 31, 2016
Fair Value Disclosures [Abstract]
Financial Instruments	NOTE 17. FINANCIAL INSTRUMENTS We do not hold or issue financial instruments for trading purposes. The estimated fair values of our financial instruments are as follows: December 31, 2016 December 31, 2015 Carrying amount Estimated fair value Carrying amount Estimated fair value Assets/(Liabilities), net: Total debt, including current portion $ (873.6 ) $ (873.7 ) $ (988.3 ) $ (989.4 ) Foreign currency contracts 1.6 1.6 3.3 3.3 Natural gas contracts 1.0 1.0 (0.8 ) (0.8 ) Interest rate swap contracts 6.9 6.9 (10.6 ) (10.6 ) The carrying amounts of cash and cash equivalents, receivables, accounts payable, accrued expenses, and short-term debt approximate fair value because of the short-term maturity of these instruments. The fair value estimates of long-term debt were primarily based upon quotes from a major financial institution of recently observed trading levels of our Term Loan A and Term Loan B debt, respectively. The fair value estimates of foreign currency contracts are estimated from market quotes provided by a well-recognized national market data provider. The fair value estimates of natural gas contracts are estimated using internal valuation models with verification by obtaining quotes from major financial institutions. For natural gas swap transactions, fair value is calculated using NYMEX market quotes provided by a well-recognized national market data provider. For natural gas option based strategies, fair value is calculated using an industry standard Black-Scholes model with market based inputs, including but not limited to, underlying asset price, strike price, implied volatility, discounted risk free rate and time to expiration, provided by a well-recognized national market data provider. The fair value estimates for interest rate swap contracts are estimated by obtaining quotes from major financial institutions with verification by internal valuation models. Refer to Note 18 for a discussion of the fair value and the related inputs used to measure fair value. The fair value measurement of assets and liabilities is summarized below: December 31, 2016 December 31, 2015 Fair value based on Fair value based on Quoted, active markets Other observable inputs Quoted, active markets Other observable inputs Level 1 Level 2 Level 1 Level 2 Assets/(Liabilities), net: Foreign currency contracts $ 1.6 $ - $ 3.3 $ - Natural gas contracts - 1.0 - (0.8 ) Interest rate swap contracts - 6.9 - (10.6 ) We do not have any financial assets or liabilities that are valued using Level 3 (unobservable) inputs.

Derivative Financial Instrument

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2016
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	NOTE 18. DERIVATIVE FINANCIAL INSTRUMENTS We are exposed to market risk from changes in foreign exchange rates, interest rates and commodity prices that could impact our results of operations, cash flows and financial condition. We use forward swaps and option contracts to hedge these exposures. Exposure to individual counterparties is controlled and derivative financial instruments are entered into with a diversified group of major financial institutions. Forward swaps and option contracts are entered into for periods consistent with underlying exposure and do not constitute positions independent of those exposures. At inception, hedges that we designate as hedging instruments are formally documented as either (1) a hedge of a forecasted transaction or “cash flow” hedge, or (2) a hedge of the fair value of a recognized liability or asset or “fair value” hedge. We also formally assess both at inception and at least quarterly thereafter, whether the derivatives that are used in hedging transactions are highly effective in offsetting changes in either the fair value or cash flows of the hedged item. If it is determined that a derivative ceases to be a highly effective hedge, or if the anticipated transaction is no longer probable of occurring, we discontinue hedge accounting, and any future mark-to-market adjustments are recognized in earnings. Counterparty Risk We only enter into derivative transactions with established counterparties having an investment-grade credit rating. We monitor counterparty credit default swap levels and credit ratings on a regular basis. All of our derivative transactions with counterparties are governed by master International Swap and Derivatives Association agreements (“ISDAs”) with netting arrangements. These agreements can limit our exposure in situations where we have gain and loss positions outstanding with a single counterparty. We do not post nor do we receive cash collateral with any counterparty for our derivative transactions. These ISDAs do not have any credit contingent features; however, a default under our bank credit facility would trigger a default under these agreements. Exposure to individual counterparties is controlled, and thus we consider the risk of counterparty default to be negligible. Commodity Price Risk We purchase natural gas for use in the manufacturing process and to heat many of our facilities. As a result, we are exposed to fluctuations in the price of natural gas. We have a policy of reducing North American natural gas price volatility by purchasing natural gas forward contracts and swaps, purchased call options, and zero-cost collars up to 24 months forward. The contracts are based on forecasted usage of natural gas measured in mmBtu’s. There is a high correlation between the hedged item and the hedge instrument. The gains and losses on these instruments offset gains and losses on the transactions being hedged. These instruments are designated as cash flow hedges. As of December 31, 2016 and December 31, 2015, the notional amount of these hedges was $7.4 million and $9.2 million, respectively. The mark-to-market gain or loss on qualifying hedges is included in other comprehensive income to the extent effective, and reclassified into cost of goods sold in the period during which the underlying gas is consumed. The mark-to-market gains or losses on ineffective portions of hedges are recognized in cost of goods sold immediately. The earnings impact of the ineffective portion of these hedges was not material for the years ended December 31, 2016, 2015 and 2014. Currency Rate Risk – Sales and Purchases We manufacture and sell our products in a number of countries throughout the world and, as a result, we are exposed to movements in foreign currency exchange rates. To a large extent, our global manufacturing and sales provide a natural hedge of foreign currency exchange rate movement, as foreign currency expenses generally offset foreign currency revenues. We manage our cash flow exposures on a net basis and when possible, use derivatives to hedge our unmatched foreign currency cash inflows and outflows. Our major foreign currency exposures as of December 31, 2016, based on operating profits by currency, are to the Chinese renminbi, Russian ruble, Euro and Canadian dollar. We use foreign currency forward exchange contracts to reduce our exposure to the risk that the eventual net cash inflows and outflows resulting from the sale of products to foreign customers and purchases from foreign suppliers will be adversely affected by changes in exchange rates. These derivative instruments are used for forecasted transactions and are classified as cash flow hedges. Cash flow hedges are executed quarterly, generally up to 15 months forward, and allow us to further reduce our overall exposure to exchange rate movements, since gains and losses on these contracts offset gains and losses on the transactions being hedged. The notional amount of these hedges was $34.6 million and $38.4 million at December 31, 2016 and December 31, 2015, respectively. Gains and losses on these instruments are recorded in other comprehensive income, to the extent effective, until the underlying transaction is recognized in earnings. The mark-to-market gains or losses on ineffective portions of hedges are recognized in SG&A expense. The earnings impact of the ineffective portion of these hedges was not material for the years ended December 31, 2016, 2015 and 2014. Currency Rate Risk - Intercompany Loans and Dividends Where efficient, reliable and liquid markets exist we may utilize foreign currency forward exchange contracts to hedge exposures created by cross-currency intercompany loans and dividends. The translation adjustments related to these loans and any offsetting gains or losses on the related derivative contracts are recorded in other non-operating income or expense. We did not have any open hedges related to intercompany loans and dividends as of December 31, 2016. The notional amount of these hedges was $6.1 million as of December 31, 2015. Due to the significant decline in the value of the Russian Ruble, we received $30.0 million in cash in 2014 as a result of settling Russian Ruble forward contracts utilized to hedge the currency impacts associated with intercompany loans to our Russian subsidiary. Our exposure to changes in the Ruble due to intercompany loans was unhedged at December 31, 2015. As of December 31, 2016 we had no outstanding intercompany loans to our Russian subsidiary. Interest Rate Risk We utilize interest rate swaps to minimize the fluctuations in earnings caused by interest rate volatility. In connection with the refinancing of our credit facilities in April 2016, $450.0 million of notional amount Term Loan B swaps with a trade date of March 27, 2012 were settled and $10.7 million of losses recorded as a component of accumulated other comprehensive income were reclassified to interest expense in 2016. As of December 31, 2015, we had a $250.0 million notional Term A swap with a trade date of April 16, 2013 and a maturity date of March 2018, in which we received 3-month LIBOR and paid a fixed rate over the hedged period. On April 1, 2016, we entered into an additional $200.0 million notional amount Term Loan A swap with a maturity date of March 2021, in which we also received 3-month LIBOR and paid a fixed rate over the hedged period, collectively resulting in $450.0 million notional Term Loan A interest rate swaps (the “Term Loan A Swaps”). During the fourth quarter of 2016, we elected to change the floating rate basis for interest payments due under our Term Loan A credit facility from 3-month LIBOR to 1-month LIBOR. In connection with the change in our underlying interest payments, in November 2016 we entered into $450.0 million forward-starting notional amount basis rate swaps to convert the floating rate risk under our Term Loan A Swaps from 3-month LIBOR to 1-month LIBOR and jointly designated the basis swaps with our Term Loan A Swaps in cash flow hedging relationships. As a result of this transaction, $2.4 million of gains recorded as a component of accumulated other comprehensive income were reclassified as a reduction to interest expense during the fourth quarter of 2016. Since the basis rate swaps had a non-zero fair value upon designation as cash flow hedges, mark-to-market gains or losses on ineffective portions of these hedges will be recorded as a component of interest expense. Also on April 1, 2016, we entered into a $100.0 million notional Term Loan B swap in which we receive the greater of 3-month LIBOR or a 0.75% LIBOR Floor and pay a fixed rate over the hedged period. These swaps were designated as cash flow hedges against changes in LIBOR for a portion of our variable rate debt. The following table summarizes our interest rate swaps as of December 31, 2016: Trade Date Notional Amount Coverage Period Risk Coverage November 13, 2016 $ 250.0 November 2016 to March 2018 Term Loan A November 13, 2016 $ 200.0 November 2016 to March 2021 Term Loan A April 1, 2016 $ 100.0 April 2016 to March 2023 Term Loan B Gains and losses on these instruments are recorded in other comprehensive income, to the extent effective, until the underlying transaction is recognized in earnings. The mark-to-market gains or losses on the ineffective portion of hedges are recognized in interest expense. There was no earnings impact of the ineffective portion of these hedges for the years ended December 31, 2015 and 2014. The earnings impact of the ineffective portion of these hedges was not material for the years ended December 31, 2016. Financial Statement Impacts The following tables detail amounts related to our derivatives as of December 31, 2016 and December 31, 2015. We did not have any derivative assets or liabilities not designated as hedging instruments for the years ended December 31, 2016 and 2015. The derivative asset and liability amounts below are shown in gross amounts; we have not netted assets with liabilities. Derivative Assets Derivative Liabilities Fair Value Fair Value Balance Sheet Location December 2016 December 31, 2015 Balance Sheet Location December 31, 2016 December 31, 2015 Derivatives designated as hedging instruments Natural gas commodity contracts Other current assets $ 1.0 $ - Accounts payable and accrued expenses $ - $ 0.8 Foreign exchange contracts Other current assets 1.4 3.4 Accounts payable and accrued expenses - 0.1 Foreign exchange contracts Other non-current assets 0.2 - Other long-term liabilities - - Interest rate swap contracts Other non-current assets 7.4 - Other long-term liabilities 0.5 10.6 Total derivatives designated as hedging instruments $ 10.0 $ 3.4 $ 0.5 $ 11.5 Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income (“AOCI”) (Effective Portion) Location of Gain (Loss) Reclassified from AOCI into Income (Effective Portion) Gain (Loss) Reclassified from AOCI into Income (Effective Portion) 2016 2015 2014 2016 2015 2014 Derivatives in Cash Flow Hedging Relationships Natural gas commodity contracts $ 0.6 $ (2.3 ) $ (2.9 ) Cost of goods sold $ (1.2 ) $ (4.4 ) $ 0.7 Foreign exchange contracts – purchases - 1.2 1.1 Cost of goods sold 0.2 1.8 (0.2 ) Foreign exchange contracts – sales (2.9 ) 4.7 4.6 Net sales 1.4 3.8 1.8 Interest rate swap contracts 6.8 (2.1 ) (9.3 ) Interest expense (8.3 ) (0.8 ) - Total $ 4.5 $ 1.5 $ (6.5 ) $ (7.9 ) $ 0.4 $ 2.3 As of December 31, 2016, the amount of existing gains in AOCI expected to be recognized in earnings over the next twelve months is $3.2 million. The amount of pre-tax gains or losses recognized in income for derivative instruments not designated as hedging instruments were not material in 2016 and 2015. The amount of pre-tax gains or losses recognized in income for derivative instruments not designated as hedging instruments was $29.6 million for 2014.

Product Warranties

Product Warranties	12 Months Ended
	Dec. 31, 2016
Product Warranties Disclosures [Abstract]
Product Warranties	NOTE 19. PRODUCT WARRANTIES We provide limited warranties for defects in materials or factory workmanship, sagging and warping, and certain other manufacturing defects. Our product warranties place certain requirements on the purchaser, including installation and maintenance in accordance with our written instructions. In addition to our warranty program, under certain limited circumstances, we will occasionally and at our sole discretion, provide a customer accommodation repair or replacement. Warranty repairs and replacements are most commonly made by professional installers employed by or affiliated with our independent distributors. Reimbursement for cost associated with warranty repairs are provided to our independent distributors through a credit against accounts receivable from the distributor to us. The following table summarizes the activity for the accrual of product warranties for December 31, 2016 and 2015: 2016 2015 Balance at beginning of period $ 0.4 $ 0.2 Current year warranty accruals 8.6 2.0 Reductions for payments (8.4 ) (1.8 ) Balance at end of period $ 0.6 $ 0.4

Other Long-Term Liabilities

Other Long-Term Liabilities	12 Months Ended
	Dec. 31, 2016
Other Liabilities Disclosure [Abstract]
Other Long-Term Liabilities	NOTE 20. OTHER LONG-TERM LIABILITIES December 31, 2016 December 31, 2015 Long-term deferred compensation arrangements $ 16.3 $ 18.7 Long-term portion of derivative liabilities 0.5 10.6 Environmental liabilities 4.7 6.0 Other 7.6 8.0 Total other long-term liabilities $ 29.1 $ 43.3

Share-Based Compensation Plans

Share-Based Compensation Plans	12 Months Ended
	Dec. 31, 2016
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Share-Based Compensation Plans	NOTE 21. SHARE-BASED COMPENSATION PLANS The 2011 Long-Term Incentive Plan (“2011 LTIP”) authorized us to issue stock options, stock appreciation rights, restricted stock awards, stock units, performance-based awards and cash awards to officers and key employees, and was scheduled to terminate on June 24, 2021. On July 8, 2016 our shareholders approved an amendment and restatement of the 2011 LTIP, resulting in the 2016 Long-Term Incentive Plan (the “2016 LTIP”). The 2011 LTIP originally authorized up to 6,949,000 shares of common stock for issuance, and the amendment authorized an additional 2,000,000 shares of common stock for issuance, for a total of 8,949,000, which includes all shares that have been issued under the 2011 and 2016 LTIPs. The amendment also extended the expiration date of the 2016 LTIP to July 8, 2026, after which time no further awards may be made. As of December 31, 2016, 2,845,479 shares were available for future grants under the 2016 LTIP. The 2008 Directors Stock Unit Plan (“2008 Director’s Plan”) authorized us to issue stock units to non-employee directors until October 2017. On July 8, 2016 our shareholders approved an amendment and restatement of the 2008 Director’s Plan, resulting in the 2016 Director’s Stock Unit Plan (the “2016 Director’s Plan”). The 2008 Plan originally authorized up to 300,000 shares of common stock for issuance, and the amendment authorized an additional 250,000 shares of common stock for issuance, for a total of 550,000, which includes all shares that have been issued under the 2008 and 2016 Director’s Plans. As of December 31, 2016, 258,793 shares were available for future grants under the 2016 Director’s Plan. In connection with the separation of AFI and under the terms of our 2011 Plan and our all outstanding stock options, restricted stock units (“RSUs”) and performance-based restricted stock units (“PSUs”) were modified using a formula designed to preserve the intrinsic value of awards immediately before and after the separation. Outstanding awards to employees and non-employee directors at the time of separation were converted into awards of the holder’s employer following separation. Modified outstanding awards will continue to vest over the original vesting periods. Stock awards held upon separation were increased based on the ratio of AWI’s New York Stock Exchange (“NYSE”) volume weighted average closing stock price on April 1, 2016 ($48.10) to the NYSE volume weighted average opening stock price on April 4, 2016 ($42.11) as follows: Stock options: The number of stock options outstanding were increased based on the ratio described above, with a corresponding decrease to the exercise price of outstanding awards in order to maintain the intrinsic value of outstanding stock options. The fair value of option grants was estimated immediately before and after the separation using the Black-Scholes option pricing model. The modification did not result in a change to the fair value of the awards, therefore, no incremental compensation expense was recorded upon modification. RSUs (employee and director): The number of RSUs were increased based on the ratio described above to preserve the intrinsic value of awards immediately prior to the separation. Modification of these awards resulted in no incremental compensation expense. PSUs : Upon separation, we had outstanding PSUs originally awarded in 2014 which had approximately one year remaining in their performance period. The amount of awards was fixed upon separation based on an assumed payout at target, with the final vesting year revised to a time-based vesting period. The number of PSUs were increased based on the ratio described above to preserve the intrinsic value of awards immediately prior to the separation. The probability of performance conditions being met was unchanged prior to and after modification, resulting in no incremental compensation expense. The following table presents stock option activity for the year ended December 31, 2016: Number of shares (thousands) Weighted-average exercise price Weighted-average remaining contractual term (years) Aggregate intrinsic value (millions) Option shares outstanding, December 31, 2015 1,410.3 $ 40.66 Option shares exercised (25.6 ) (26.26 ) Options forfeited (23.5 ) (45.68 ) Net impact as a result of AFI separation (10.6 ) (44.21 ) Option shares outstanding, December 31, 2016 1,350.6 $ 34.66 4.5 $ 11.6 Option shares exercisable, December 31, 2016 1,276.7 33.94 4.5 $ 11.6 Option shares vested and expected to vest, December 31, 2016 1,350.3 34.66 4.5 $ 11.6 We have reserved sufficient authorized shares to allow us to issue new shares upon exercise of all outstanding options. Options generally become exercisable in three years and expire 10 years from the date of grant. When options are exercised, we may issue new shares, use treasury shares (if available), acquire shares held by investors, or a combination of these alternatives in order to satisfy the option exercises. The following table presents information related to stock option exercises: 2016 2015 2014 Total intrinsic value of stock options exercised $ 0.4 $ 3.5 $ 17.1 Cash proceeds received from stock options exercised $ 0.7 $ 6.4 $ 17.8 Tax (expense) deduction realized from stock options exercised $ (0.1 ) $ 0.4 $ 2.7 The fair value of option grants was estimated on the date of grant using the Black-Scholes option pricing model. There were no option grants in 2016 or 2015. The weighted average historical pre-modification assumptions for 2014 is presented in the table below. 2014 Weighted-average grant date fair value of options granted (dollars per option) $ 24.93 Assumptions Risk free rate of return 1.9 % Expected volatility 46.5 % Expected term (in years) 6.0 Expected dividend yield 0.0 % The risk free rate of return was determined based on the implied yield available on zero coupon U.S. Treasury bills at the time of grant with a remaining term equal to the expected term of the option. The expected volatility was based on Armstrong’s stock prices. The expected term represented the midpoint of the average vesting period and the contractual life of the grant was based on an allowable simplified method. The expected dividend yield was assumed to be zero because, at the time of each grant, we had no plans to declare a dividend. We have also granted non-vested stock awards in the form of restricted stock, RSUs, performance restricted stock and PSUs. As of December 31, 2016 and 2015, we have no outstanding restricted stock or performance restricted stock. A summary of the 2016 activity related to these awards follows: Non-Vested Stock Awards RSUs PSUs Number of shares (thousands) Weighted- average fair value at grant date Number of shares (thousands) Weighted- average fair value at grant date December 31, 2015 413.3 $ 54.66 216.9 $ 52.84 Granted 114.3 41.53 254.4 39.23 Vested (171.5 ) (52.83 ) (61.6 ) (51.79 ) Forfeited (57.0 ) (48.31 ) (110.5 ) (52.12 ) Net impact as a result of AFI separation (74.6 ) (40.32 ) (8.8 ) (45.74 ) December 31, 2016 224.5 $ 44.94 290.4 $ 40.29 RSUs entitle the recipient to a specified number of shares of AWI’s common stock provided the prescribed service period is fulfilled. PSUs entitle the recipient to a specified number of shares of Armstrong’s common stock provided the defined financial targets are achieved at the end of the performance period. RSUs and PSUs generally had vesting periods of three years at the grant date. RSUs and PSUs earn dividends during the vesting period that are forfeitable if the awards do not vest. The table above contains 9,581 and 17,545 RSUs as of December 31, 2016 and 2015, respectively, which are accounted for as liability awards as they are able to be settled in cash. The table above contains 720 and 6,537 PSUs as of December 31, 2016 and 2015, respectively, which are accounted for as liability awards as they are able to be settled in cash. RSUs and PSUs with non-market based performance conditions are measured at fair value based on the closing price of our stock on the date of grant. In 2016, we granted 158,790 PSUs with market based performance conditions that are valued through the use of a Monte Carlo simulation. The weighted average assumptions for PSUs measured at fair value through the use of a Monte Carlo simulation is presented in the table below. 2016 Weighted-average grant date fair value of market based PSUs granted (dollars per award) $ 37.75 Assumptions Risk free rate of return 0.8 % Expected volatility 28.0 % Expected term (in years) 2.7 Expected dividend yield 0.0 % The risk free rate of return was determined based on the implied yield available on zero coupon U.S. Treasury bills at the time of grant with a remaining term equal to the expected term of the PSUs. The expected volatility was based on an average of the actual historical volatilities of the stock prices of AWI and a peer group of companies. We elected to not rely solely on AWI’s actual historical stock price volatility due to the separation of AFI. The expected life represented the performance period on the underlying award. The expected dividend yield was assumed to be zero because, at the time of each grant, we had no plans to declare a dividend. In addition to the equity awards described above, as of December 31, 2016 we had 23,546 fully-vested phantom shares outstanding for non-employee directors under the 2006 Phantom Stock Unit Plan not reflected in the non-vested stock awards table above. These awards are settled in cash and had vesting periods of one to three years. The awards are generally payable six months following the director’s separation from service on the Board of Directors. The total liability recorded for these shares as of December 31, 2016 was $1.8 million which includes associated non-forfeitable dividends. The 2006 Phantom Stock Unit Plan is still in place; however, no additional shares will be granted under the plan. As of December 31, 2016 and 2015, there were 189,237 and 197,475 RSUs, respectively, outstanding under the 2016 Directors Stock Unit Plan not reflected in the Non-Vested Stock Awards table above. In 2016 and 2015, we granted 25,714 and 22,997 restricted stock units, respectively, to non-employee directors. These awards generally have a vesting period of one year, and as of December 31, 2016 and 2015, 163,523 and 174,478 shares, respectively, were vested but not yet delivered. The awards are generally payable six months following the director’s separation from service on the Board of Directors and earn dividends during the vesting period that are non-forfeitable. We recognize share-based compensation expense on a straight-line basis over the vesting period. Share-based compensation cost was $12.1 million ($7.9 million net of tax benefit) in 2016; $10.9 million ($7.2 million net of tax benefit) in 2015, and $10.3 million ($6.9 million net of tax benefit) in 2014. As of December 31, 2016, there was $12.3 million of total unrecognized compensation cost related to non-vested share-based compensation arrangements. That cost is expected to be recognized over a weighted-average period of 1.8 years.

Employee Costs

Employee Costs	12 Months Ended
	Dec. 31, 2016
Compensation Related Costs [Abstract]
Employee Costs	NOTE 22. EMPLOYEE COSTS 2016 2015 2014 Wages, salaries and incentive compensation $ 265.6 $ 267.9 $ 279.3 Payroll taxes 26.5 27.4 30.6 Defined contribution and defined benefit pension plan expense, net 29.7 34.5 18.0 Insurance and other benefit costs 24.9 20.6 21.9 Share-based compensation 12.1 10.9 10.3 Total $ 358.8 $ 361.3 $ 360.1

Leases

Leases	12 Months Ended
	Dec. 31, 2016
Leases [Abstract]
Leases	NOTE 23. LEASES We rent certain real estate and equipment. Several leases include options for renewal or purchase, and contain clauses for payment of real estate taxes and insurance. In most cases, management expects that in the normal course of business, leases will be renewed or replaced by other leases. 2016 2015 2014 Rent expense $ 16.6 $ 17.0 $ 16.2 Sublease (income) (0.3 ) (0.4 ) (0.4 ) Net rent expense $ 16.3 $ 16.6 $ 15.8 Future minimum payments at December 31, 2016 by year and in the aggregate, having non-cancelable lease terms in excess of one year are as follows: Total Minimum Lease Payments Sublease (Income) Net Minimum Lease Payments Scheduled minimum lease payments 2017 $ 7.4 $ (0.1 ) $ 7.3 2018 6.0 (0.1 ) 5.9 2019 4.6 (0.1 ) 4.5 2020 3.2 (0.1 ) 3.1 2021 2.4 - 2.4 Thereafter 2.4 - 2.4 Total $ 26.0 $ (0.4 ) $ 25.6 Assets under capital leases at December 31, 2016 and 2015 are not material.

Shareholders' Equity

Shareholders' Equity	12 Months Ended
	Dec. 31, 2016
Stockholders Equity Note [Abstract]
Shareholders' Equity	NOTE 24. SHAREHOLDERS' EQUITY Common Stock Repurchase Plan On July 29, 2016, the Company announced that its Board of Directors had approved a share repurchase program pursuant to which the Company is authorized to repurchase up to $150.0 million of its outstanding shares of common stock through July 31, 2018 (the “Program”). Repurchases under the Program may be made through open market, block and privately-negotiated transactions, including Rule 10b5-1 plans, at times and in such amounts as management deems appropriate, subject to market and business conditions, regulatory requirements and other factors. The Program does not obligate the Company to repurchase any particular amount of common stock and may be suspended or discontinued at any time without notice. Accumulated Other Comprehensive (Loss) The balance of each component of accumulated other comprehensive (loss), net of tax as of December 31, 2016 and 2015 is presented in the table below. December 31, 2016 December 31, 2015 Foreign currency translation adjustments $ (71.6 ) $ (33.8 ) Derivative gain (loss), net 3.8 (3.3 ) Pension and postretirement adjustments (336.0 ) (450.3 ) Accumulated other comprehensive (loss) $ (403.8 ) $ (487.4 ) The amounts and related tax effects allocated to each component of other comprehensive income (loss) for 2016, 2015, and 2014 are presented in the table below. Pre-tax Amount Tax Benefit After- tax Amount 2016 Foreign currency translation adjustments $ (33.2 ) $ - $ (33.2 ) Derivative gain, net 11.9 (4.4 ) 7.5 Pension and postretirement adjustments 75.7 (26.4 ) 49.3 Total other comprehensive income $ 54.4 $ (30.8 ) $ 23.6 Pre-tax Amount Tax Expense After-tax Amount 2015 Foreign currency translation adjustments $ (25.5 ) $ - $ (25.5 ) Derivative gain, net 1.1 (0.4 ) 0.7 Pension and postretirement adjustments 50.7 (17.8 ) 32.9 Total other comprehensive income $ 26.3 $ (18.2 ) $ 8.1 Pre-tax Amount Tax Benefit After-tax Amount 2014 Foreign currency translation adjustments $ (29.6 ) $ - $ (29.6 ) Derivative (loss), net (4.9 ) 1.6 (3.3 ) Pension and postretirement adjustments (153.6 ) 62.6 (91.0 ) Total other comprehensive (loss) income $ (188.1 ) $ 64.2 $ (123.9 ) The following table summarizes the activity, by component, related to the change in AOCI for December 31, 2016 and 2015: Foreign Currency Translation Adjustments (1) Derivative (Loss) Gain (1) Pension and Postretirement Adjustments (1) Total Other Comprehensive (Loss) (1) Balance, December 31, 2014 $ (8.3 ) $ (4.0 ) $ (483.2 ) $ (495.5 ) Other comprehensive (loss) income before reclassifications, net of tax expense (benefit) of $ -, $1.8, ($6.4), and ($4.6) (25.5 ) 3.5 (12.0 ) (34.0 ) Amounts reclassified from accumulated other comprehensive income - (2.8 ) 44.9 42.1 Net current period other comprehensive (loss) income (25.5 ) 0.7 32.9 8.1 Balance, December 31, 2015 $ (33.8 ) $ (3.3 ) $ (450.3 ) $ (487.4 ) Separation of AFI, net of tax (benefit) of $-, $-, ($39.2), and ($39.2) (4.6 ) (0.4 ) 65.0 60.0 Other comprehensive (loss) income before reclassifications, net of tax (benefit) of $ -, ($1.8), ($10.9), and ($12.8) (33.2 ) 3.0 20.2 (10.0 ) Amounts reclassified from accumulated other comprehensive income - 4.5 29.1 33.6 Net current period other comprehensive (loss) income (33.2 ) 7.5 49.3 23.6 Balance, December 31, 2016 $ (71.6 ) $ 3.8 $ (336.0 ) $ (403.8 ) (1) Amounts are net of tax The amounts reclassified from AOCI and the affected line item of the Consolidated Statement of Earnings and Comprehensive Income are presented in the table below. Amounts Reclassified from AOCI Affected Line Item in the Consolidated Statement of Earnings and Comprehensive Income 2016 2015 Derivative Adjustments: Natural gas commodity contracts $ 1.2 $ 4.4 Cost of goods sold Foreign exchange contracts - purchases (0.2 ) (1.8 ) Cost of goods sold Foreign exchange contracts - sales (1.4 ) (3.8 ) Net sales Interest rate swap contracts 8.3 0.8 Interest expense Total income (loss) from continuing operations, before tax 7.9 (0.4 ) Tax impact (2.8 ) 0.1 Income tax expense Total income (loss) from continuing operations, net of tax 5.1 (0.3 ) Total (loss) from discontinued operations, net of tax benefit of ($0.3) and ($1.3) (0.6 ) (2.5 ) Total income (loss), net of tax 4.5 (2.8 ) Pension and Postretirement Adjustments: Prior service cost amortization 0.6 0.2 Cost of goods sold Prior service cost amortization 0.6 0.4 SG&A expense Amortization of net actuarial loss 20.7 22.1 Cost of goods sold Amortization of net actuarial loss 18.4 21.3 SG&A expense Total expense from continuing operations, before tax 40.3 44.0 Tax impact (14.1 ) (15.4 ) Income tax expense Total expense from continuing operations, net of tax 26.2 28.6 Total expense from discontinued operations net of tax expense of $1.5 and $8.8 2.9 16.3 Total expense, net of tax 29.1 44.9 Total reclassifications for the period $ 33.6 $ 42.1

Supplemental Financial Informat

Supplemental Financial Information	12 Months Ended
	Dec. 31, 2016
Supplemental Financial Information [Abstract]
Supplemental Financial Information	NOTE 25. SUPPLEMENTAL FINANCIAL INFORMATION 2016 2015 2014 Selected operating expense Maintenance and repair costs $ 53.0 $ 53.0 $ 53.1 Research and development costs 18.8 19.7 19.8 Advertising costs 6.9 7.8 7.1 Other non-operating expense Foreign currency transaction loss, net of hedging activity $ - $ 19.4 $ 5.9 Other 0.1 0.7 - Total $ 0.1 $ 20.1 $ 5.9 Other non-operating income Interest income $ 2.6 $ 1.9 $ 2.1 Foreign currency transaction gain, net of hedging activity 6.7 3.0 - Other 0.3 0.1 0.1 Total $ 9.6 $ 5.0 $ 2.2

Related Parties

Related Parties	12 Months Ended
	Dec. 31, 2016
Related Party Transactions [Abstract]
Related Parties	NOTE 26. RELATED PARTIES In some markets, we purchase grid products from WAVE, our 50%-owned joint venture with Worthington Industries, for resale to customers. The total amount of these purchases was $76.2 million in 2016, $73.7 million in 2015 and $85.4 million in 2014. We also provide certain selling, promotional and administrative processing services to WAVE for which we receive reimbursement. Those services amounted to $15.7 million in 2016, $15.2 million in 2015, and $14.7 million in 2014. The net amount due to WAVE from us for all of our relationships was $8.7 million as of December 31, 2016 and $5.4 million as of December 31, 2015. See Note 9 to the Consolidated Financial Statements for additional information.

Litigation and Related Matters

Litigation and Related Matters	12 Months Ended
	Dec. 31, 2016
Commitments And Contingencies Disclosure [Abstract]
Litigation and Related Matters	NOTE 27. LITIGATION AND RELATED MATTERS ENVIRONMENTAL MATTERS Environmental Compliance Our manufacturing and research facilities are affected by various federal, state and local requirements relating to the discharge of materials and the protection of the environment. We make expenditures necessary for compliance with applicable environmental requirements at each of our operating facilities. These regulatory requirements continually change, therefore we cannot predict with certainty future expenditures associated with compliance with environmental requirements. Environmental Sites Summary We are actively involved in the investigation, closure and/or remediation of existing or potential environmental contamination under the Comprehensive Environmental Response, Compensation and Liability Act (“CERCLA”), and state Superfund and similar type environmental laws at several domestically owned, formerly owned and non-owned locations allegedly resulting from past industrial activity. In a few cases, we are one of several potentially responsible parties and have agreed to jointly fund the required investigation and remediation, while preserving our defenses to the liability. We may also have rights of contribution or reimbursement from other parties or coverage under applicable insurance policies. We are currently pursuing coverage and recoveries under those policies with respect to certain of the sites, including the St. Helens, OR site, the Macon, GA site and the Elizabeth City, NC site, each of which is summarized below. These efforts include two active and independent litigation matters against legacy primary and excess policy insurance carriers for recovery of fees and costs incurred by us in connection with our investigation and remediation activities for such sites. These proceedings are currently in early stages and we are unable to predict the outcome of these matters or the timing of any recoveries, whether through settlement or otherwise. We are also unable to predict the extent to which any recoveries might cover our final share of investigation and remediation costs for these sites. Our final share of investigation and remediation costs may exceed any such recoveries, and such amounts net of insurance recoveries may be material. Estimates of our future liability at the environmental sites are based on evaluations of currently available facts regarding each individual site. We consider factors such as our activities associated with the site, existing technology, presently enacted laws and regulations and prior company experience in remediating contaminated sites. Although current law imposes joint and several liability on all parties at Superfund sites, our contribution to the remediation of these sites is expected to be limited by the number of other companies potentially liable for site remediation. As a result, our estimated liability reflects only our expected share. In determining the probability of contribution, we consider the solvency of other parties, the site activities of other parties, whether liability is being disputed, the terms of any existing agreements and experience with similar matters, and the effect of our October 2006 Chapter 11 reorganization upon the validity of the claim. Specific Material Events St Helens, OR In August 2010, we entered into a Consent Order (the “Consent Order”) with the Oregon Department of Environmental Quality (“ODEQ”), along with Kaiser Gypsum Company, Inc. (“Kaiser”), and Owens Corning Sales LLC (“OC”), with respect to our St. Helens, OR facility, which was previously owned by Kaiser and then OC. The Consent Order requires that we and Kaiser complete a remedial investigation and feasibility study (“RI/FS”) on the portion of the site owned by us (“Owned Property”), which is comprised of Upland and Lowland areas. The Consent Order further requires us, Kaiser and OC to conduct an RI/FS in the In-Water area of the adjacent Scappoose Bay. Costs and responsibilities for investigation, including the current RI/FS, for the Owned Property have been shared with Kaiser pursuant to a cost sharing agreement with Kaiser. Costs and responsibilities for the investigation with respect to the in-water areas that we do not own have been shared with Kaiser and OC pursuant to a cost sharing agreement with Kaiser and OC. On September 14, 2016, the parties submitted a Feasibility Study to the ODEQ proposing remedial action options for the Upland area. We have participated in the investigation phase for the Lowland area of the Owned Property and the Scappoose Bay and have been working with the ODEQ, Kaiser and OC to finalize the reports to move to the Feasibility Study phase. We have determined that it is probable that remedial action for certain portions of the Lowland area of the Owned Property will be required. The current estimate of our future liability at the site includes any remaining known investigation work required by the Consent Order and the current projected cost of remedial actions in the Upland area. At this time, we are unable to reasonably estimate any remediation costs that we may ultimately incur with respect to the Lowland portion of the Owned Property or the Scappoose Bay or whether the projected costs for the areas we have included in our current estimate will increase. Additional investigative or remedial action required by the ODEQ could result in additional costs greater than the amounts currently estimated. As discussed above, we are currently unable to predict the outcome or the timing of our insurance recovery proceedings. Accordingly, additional estimated costs for this matter may be incurred without regard for, and prior to, the resolution of our insurance recovery proceedings. On September 30, 2016, Kaiser filed a voluntary petition for relief under Chapter 11 of the Bankruptcy Code in the U.S. Bankruptcy Court for the Western District of North Carolina (Case No. 16-31602). AWI, OC and the ODEQ have all been included on the master list of potential creditors filed with the Bankruptcy Court for notice purposes. By order dated October 14, 2016, the Bankruptcy Court formed a statutory committee of unsecured creditors, to which we were appointed to serve, along with OC and The Boeing Company. The Committee is charged with, among other things, maximizing recovery of all unsecured creditor claims, including claims of Kaiser and ODEQ. The Chapter 11 case may impact Kaiser’s ongoing participation in the RI/FS process, as well as the ODEQ consent order and cost sharing agreements. It may also delay implementation of remedial actions for the Upland area, as well as completion of the investigation phase for the Lowland area of the Owned Property and the Scappoose Bay. At this time, we are unable to predict whether and to what extent Kaiser intends to satisfy its environmental remediation obligations and liability to ODEQ. Specifically, we are unable to predict whether Kaiser intends to negotiate a settlement that would discharge its liability for the site, or whether it has sufficient insurance or other assets to cover its anticipated share of any site liability. Kaiser’s shares under cost sharing agreements were being funded by certain insurance policies, which comprised substantially all of Kaiser’s assets. If Kaiser, whether as a result of bankruptcy or otherwise, or OC are unwilling or unable to fulfill their obligations under the cost sharing agreements, or seek to contest or challenge the allocations, or if Kaiser’s insurance policies are unable to fund Kaiser’s share of environmental liability, it could result in additional cost to us greater than the amounts currently estimated and those costs may be material. Macon, GA The U.S. Environmental Protection Agency (“EPA”) has listed two landfills located on a portion of our Building Products facility in Macon, GA, along with the former Macon Naval Ordnance Plant landfill adjacent to our property, portions of Rocky Creek, and certain tributaries leading to Rocky Creek (collectively, the “Macon Site”) as a Superfund site on the National Priorities List due to the presence of contaminants, most notably polychlorinated biphenyls (“PCBs”). In September 2010, we entered into an Administrative Order on Consent for a Removal Action with the EPA to investigate PCB contamination in one of the landfills on our property, the Wastewater Treatment Plant Landfill (the “WWTP Landfill,” also known as “Operable Unit 1”). We concluded the investigative phase of the Removal Action for the WWTP Landfill and submitted our final Engineering Evaluation/Cost Analysis (“EE/CA”) to the EPA in 2013. The EPA subsequently approved the EE/CA and issued an Action Memorandum in July 2013 selecting our recommended remedy for the Removal Action. In July 2014, we entered into an Administrative Order on Consent for Removal Action with the EPA for the WWTP Landfill. The EPA approved the Removal Action Work Plan on March 30, 2015 and the removal work commenced in the third quarter of 2015. The Operable Unit 1 response action for the WWTP Landfill is complete and the final report was submitted to the EPA on October 11, 2016. The EPA approved the final report on November 28, 2016, and we are required to submit a Post-Removal Control Plan (the “Plan”) by March 28, 2017. We will implement the Plan once it is approved. That Plan will monitor the effectiveness of the WWTP Landfill response action and our estimate of future liabilities includes these tasks. It is probable that we will incur field investigation, engineering and oversight costs associated with a RI/FS with respect to the remainder of the Superfund site, which includes the other landfill on our property, as well as areas on and adjacent to AWI’s property and Rocky Creek (the “Remaining Site,” also known as “Operable Unit 2”). On September 25, 2015, AWI and six other Potentially Responsible Parties (“PRPs”) received a Special Notice Letter from the EPA under CERCLA inviting AWI and the PRPs to enter into the negotiation of a Settlement Agreement (formerly known as an Administrative Order on Consent) to conduct an RI/FS of Operable Unit 2. We along with the PRPs submitted a good faith offer to the EPA in response to the Special Notice Letter to conduct RI/FS. We have not received a response to our good faith offer and have not yet entered into an Order with the EPA for Operable Unit 2. We have not yet commenced an investigation of this portion of the site. We anticipate that the EPA will require significant investigative work for Operable Unit 2 and that we may ultimately incur costs in remediating any contamination discovered during the RI/FS. The current estimate of future liability at this site includes only our estimated share of the costs of the investigative work that, at this time, we anticipate the EPA will require the PRPs to perform. We are unable to reasonably estimate AWI’s final share of the costs or the total costs associated with the investigation work or any resulting remediation therefrom, although such amounts may be material. Elizabeth City, NC This site is a former cabinet manufacturing facility that was operated by Triangle Pacific Corporation, now known as Armstrong Wood Products, Inc. (“Triangle Pacific”), from 1977 until 1996. The site was formerly owned by the U.S. Navy (“Navy”) and Westinghouse, now CBS Corporation (“CBS”). We assumed ownership of the site when we acquired the stock of Triangle Pacific in 1998. Prior to our acquisition, the NC Department of Environment and Natural Resources listed the site as a hazardous waste site. In 1997, Triangle Pacific entered into a cost sharing agreement with Westinghouse whereby the parties agreed to share equally in costs associated with investigation and potential remediation. In 2000, Triangle Pacific and CBS entered into an Administrative Order on Consent to conduct an RI/FS with the EPA for the site. In 2007, we and CBS entered into an agreement with the Navy whereby the Navy agreed to pay one third of defined past and future investigative costs up to a certain amount, which has now been exhausted. The EPA approved the RI/FS work plan in August 2011. In January 2014, we submitted the draft Remedial Investigation and Risk Assessment reports and conducted supplemental investigative work based upon agency comments to those reports. The EPA has requested a schedule for next steps (e.g. FS) working toward a Proposed Plan and Record Of Decision. If remediation is required the related costs may be material, although we expect these costs to be shared with CBS and the Navy. Summary of Financial Position Liabilities of $4.7 million as of December 31, 2016 and $6.0 million as of December 31, 2015 were recorded for potential environmental liabilities that we consider probable and for which a reasonable estimate of the probable liability could be made. During 2016, we recorded reserves for potential environmental liabilities of $2.9 million. Where existing data is sufficient to estimate the liability, that estimate has been used; where only a range of probable liabilities is available and no amount within that range is more likely than any other, the lower end of the range has been used. As assessments and remediation activities progress at each site, these liabilities are reviewed to reflect new information as it becomes available, and adjusted to reflect amounts actually incurred and paid. These liabilities are undiscounted. The estimated liabilities above do not take into account any claims for recoveries from insurance or third parties. It is our policy to record probable recoveries that are available through settlement as assets in the Consolidated Balance Sheets. No material amounts were recorded for probable recoveries as of December 31, 2016 or December 31, 2015. Actual costs to be incurred at identified sites may vary from our estimates. Based on our knowledge of the identified sites, it is not possible to reasonably estimate future costs in excess of amounts already recognized. OTHER CLAIMS We are involved in various lawsuits, claims, investigations and other legal matters from time to time that arise in the ordinary course of business, including matters involving our products, intellectual property, relationships with suppliers, relationships with distributors, relationships with competitors, employees and other matters. From time to time, for example, we may be a party to litigation matters that involve product liability, tort liability and other claims under various allegations, including illness due to exposure to certain chemicals used in the workplace; or medical conditions arising from exposure to product ingredients or the presence of trace contaminants. Such allegations may involve multiple defendants and relate to legacy products that we and other defendants purportedly manufactured or sold. We believe that any current claims are without merit and intend to defend them vigorously. For these matters, we also may have rights of contribution or reimbursement from other parties or coverage under applicable insurance policies. When applicable and appropriate, we will pursue coverage and recoveries under those policies, but are unable to predict the outcome of those demands. While complete assurance cannot be given to the outcome of these proceedings, we do not believe that any current claims, individually or in the aggregate, will have a material adverse effect on our financial condition, liquidity or results of operations.

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2016
Earnings Per Share [Abstract]
Earnings Per Share	NOTE 28. EARNINGS PER SHARE Earnings per share components may not add due to rounding. The following table is a reconciliation of net earnings to net earnings attributable to common shares used in our basic and diluted EPS calculations for the years ended December 31, 2016, 2015, and 2014: 2016 2015 2014 Earnings from continuing operations $ 93.9 $ 26.6 $ 79.1 Earnings allocated to participating non-vested share awards (0.3 ) (0.1 ) (0.4 ) Earnings from continuing operations attributable to common shares $ 93.6 $ 26.5 $ 78.7 2016 2015 2014 (in millions) Basic shares outstanding 55.4 55.5 55.0 Dilutive effect of common stock equivalents 0.3 0.4 0.4 Diluted shares outstanding 55.7 55.9 55.4 Options to purchase 632,799, 203,527 and 142,038 shares of common stock were outstanding as of December 31, 2016, 2015, and 2014, respectively, but not included in the computation of diluted earnings per share, because the options were anti-dilutive.

Subsequent Event - Acquisition

Subsequent Event - Acquisition	12 Months Ended
	Dec. 31, 2016
Subsequent Events [Abstract]
Subsequent Event - Acquisition	NOTE 29. SUBSEQUENT EVENT – ACQUISITION On January 13, 2017 we completed our acquisition of the business and assets Tectum, Inc. (“Tectum”), headquartered in Newark, Ohio, for a total cash purchase of $31.4 million. Tectum is a manufacturer of acoustical ceiling, wall and structural solutions for commercial building applications with two manufacturing facilities and 2016 revenues in excess of $25 million.

Schedule II

Schedule II	12 Months Ended
	Dec. 31, 2016
Valuation And Qualifying Accounts [Abstract]
Schedule II	SCHEDULE II Armstrong World Industries, Inc., and Subsidiaries Valuation and Qualifying Reserves (amounts in millions) Balance at beginning of year Additions charged to earnings Deductions Balance at end of year 2014 Provision for bad debts $ 2.5 $ 1.5 $ (0.5 ) $ 3.5 Provision for discounts 5.7 19.1 (20.0 ) 4.8 Provision for warranties 0.5 2.7 (3.0 ) 0.2 Reserves for inventory 1.2 0.9 (0.8 ) 1.3 2015 Provision for bad debts $ 3.5 $ 0.5 $ (0.9 ) $ 3.1 Provision for discounts 4.8 18.8 (20.3 ) 3.3 Provision for warranties 0.2 2.0 (1.8 ) 0.4 Reserves for inventory 1.3 1.4 (0.7 ) 2.0 2016 Provision for bad debts $ 3.1 $ 2.4 $ (1.5 ) $ 4.0 Provision for discounts 3.3 18.2 (20.0 ) 1.5 Provision for warranties 0.4 8.6 (8.4 ) 0.6 Reserves for inventory 2.0 0.2 (0.8 ) 1.4

Summary of Significant Accoun38

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2016
Accounting Policies [Abstract]
Consolidation Policy	Consolidation Policy
Use of Estimates	Use of Estimates
Reclassifications	Reclassifications
Revenue Recognition	Revenue Recognition
Sales Incentives	Sales Incentives
Shipping and Handling Costs	Shipping and Handling Costs
Advertising Costs	Advertising Costs
Research and Development Costs	Research and Development Costs
Pension and Postretirement Benefits	Pension and Postretirement Benefits
Taxes	Taxes We reduce the carrying amounts of deferred tax assets by a valuation allowance if, based on the available evidence, it is more likely than not that such assets will not be realized. The need to establish valuation allowances for deferred tax assets is assessed quarterly. In assessing the requirement for, and amount of, a valuation allowance in accordance with the more likely than not standard, we give appropriate consideration to all positive and negative evidence related to the realization of the deferred tax assets. This assessment considers, among other matters, the nature, frequency and severity of current and cumulative losses, forecasts of future profitability and foreign source income, the duration of statutory carryforward periods, and our experience with operating loss and tax credit carryforward expirations. A history of cumulative losses is a significant piece of negative evidence used in our assessment. If a history of cumulative losses is incurred for a tax jurisdiction, forecasts of future profitability are generally not used as positive evidence related to the realization of the deferred tax assets in the assessment. We recognize the tax benefits of an uncertain tax position if those benefits are more likely than not to be sustained based on existing tax law. Additionally, we establish a reserve for tax positions that are more likely than not to be sustained based on existing tax law, but uncertain in the ultimate benefit to be sustained upon examination by the relevant taxing authorities. Unrecognized tax benefits are subsequently recognized at the time the more likely than not recognition threshold is met, the tax matter is effectively settled or the statute of limitations for the relevant taxing authority to examine and challenge the tax position has expired, whichever is earlier. Taxes collected from customers and remitted to governmental authorities are reported on a net basis.
Earnings per Share	Earnings per Share
Cash and Cash Equivalents	Cash and Cash Equivalents
Concentration of Credit	Concentration of Credit
Receivables	Receivables We establish credit-worthiness prior to extending credit. We estimate the recoverability of receivables each period. This estimate is based upon new information in the period, which can include the review of any available financial statements and forecasts, as well as discussions with legal counsel and the management of the debtor company. As events occur, which impact the collectability of the receivable, all or a portion of the receivable is reserved. Account balances are charged off against the allowance when the potential for recovery is considered remote. We do not have any off-balance sheet credit exposure related to our customers.
Inventories	Inventories
Property Plant and Equipment	Property Plant and Equipment Property, plant and equipment is tested for impairment by asset group when indicators of impairment are present, such as operating losses and/or negative cash flows. If an indication of impairment exists, we compare the carrying amount of the asset group to the estimated undiscounted future cash flows expected to be generated by the asset group. The estimate of an asset group’s fair value is based on discounted future cash flows expected to be generated by the asset group, or based on management’s estimated exit price assuming the assets could be sold in an orderly transaction between market participants, or estimated salvage value if no sale is assumed. If the fair value is less than the carrying value of the asset group, we record an impairment charge equal to the difference between the fair value and carrying value of the asset group. Impairments of assets related to our manufacturing operations are recorded in cost of goods sold. When assets are disposed of or retired, their costs and related depreciation are removed from the financial statements, and any resulting gains or losses normally are reflected in cost of goods sold or selling, general and administrative (“SG&A”) expenses depending on the nature of the asset.
Asset Retirement Obligations	Asset Retirement Obligations
Intangible Assets	Intangible Assets Our indefinite-lived intangibles are primarily trademarks and brand names, with Armstrong representing our primary trademark, which are integral to our corporate identity and expected to contribute indefinitely to our cash flows. Accordingly, they have been assigned an indefinite life. We perform annual impairment tests during the fourth quarter on these indefinite-lived intangibles. These assets undergo more frequent tests if an indication of possible impairment exists. The principal assumption used in our impairment tests for definite-lived intangible assets is future operating profit adjusted for depreciation and amortization. The principal assumptions used in our impairment tests for indefinite-lived intangible assets include revenue growth rate, discount rate and royalty rate. Revenue growth rate and future operating profit assumptions are derived from those utilized in our operating plan and strategic planning processes. The discount rate assumption is calculated based upon an estimated weighted average cost of equity which reflects the overall level of inherent risk and the rate of return a market participant would expect to achieve. The royalty rate assumption represents the estimated contribution of the intangible asset to the overall profits of the reporting unit. Methodologies used for valuing our intangible assets did not change from prior periods. See Note 10 to the Consolidated Financial Statements for disclosure on intangible assets.
Foreign Currency Transactions	Foreign Currency Transactions
Financial Instruments and Derivatives	Financial Instruments and Derivatives
Share-Based Employee Compensation	Share-based Employee Compensation
Subsequent Events	Subsequent Events
Recently Adopted and Recently Issued Accounting Standards	Recently Adopted Accounting Standards In April 2015, the FASB issued ASU 2015-03, “Simplifying the Presentation of Debt Issuance Costs.” “Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements,” In November 2015, the FASB issued ASU 2015-17, “Balance Sheet Classification of Deferred Taxes,” In November 2016, the FASB issued ASU 2016-18, “Restricted Cash,” Recently Issued Accounting Standards In May 2014, the FASB issued ASU 2014-09, “Revenue from Contracts with Customers.” “Revenue from Contracts with Customers: Deferral of the Effective Date,” “Principal versus Agent Considerations (Reporting Gross versus Net),” “Identifying Performance Obligations and Licensing,” “Narrow-Scope Improvements and Practical Expedients,” “Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers,” Collectively, the revenue recognition ASC updates are effective for annual reporting periods beginning after December 15, 2017, but early adoption is permitted. We intend to adopt these standards effective January 1, 2018 on a modified retrospective transition method and also intend on applying all practical expedients related to completed contracts upon adoption. We are still evaluating the impact the adoption of these ASC updates will have on our financial condition, results of operations and cash flows. Our final evaluation of the impact of adopting these ASC updates is expected to be completed during the third quarter of 2017. In July 2015, the FASB issued ASU 2015-11, “Simplifying the Measurement of Inventory,” In January 2016, the FASB issued ASU 2016-01, “Recognition and Measurement of Financial Assets and Financial Liabilities,” In February 2016, the FASB issued ASU 2016-02, “Leases,” In March 2016, the FASB issued ASU 2016-09, “Improvements to Employee Share-Based Payment Accounting,” In August 2016, the FASB issued ASU 2016-15, “Classification of Certain Cash Receipts and Cash Payments,” In January 2017, the FASB issued ASU 2017-01, “Clarifying the Definition of a Business,”

Nature Of Operations (Tables)

Nature Of Operations (Tables)	12 Months Ended
	Dec. 31, 2016
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Schedule Of Segment Reporting Information	Americas EMEA Pacific Rim Unallocated Corporate Total For the year ended 2016 Net sales to external customers $ 837.3 $ 263.1 $ 134.1 $ - $ 1,234.5 Equity (earnings) from joint venture (70.2 ) (2.2 ) (0.7 ) - (73.1 ) Segment operating income (loss) 232.1 (8.2 ) (0.5 ) (38.8 ) 184.6 Segment assets 1,186.7 275.5 145.0 150.8 1,758.0 Depreciation and amortization (1) 52.9 16.7 8.1 0.1 77.8 Investment in joint venture 106.2 - - - 106.2 Purchases of property, plant and equipment (1) 66.4 19.1 6.6 - 92.1 Americas EMEA Pacific Rim Unallocated Corporate Total For the year ended 2015 Net sales to external customers $ 805.1 $ 289.9 $ 136.3 $ - $ 1,231.3 Equity (earnings) from joint venture (63.5 ) (2.3 ) (0.3 ) - (66.1 ) Segment operating income (loss) 283.5 (11.9 ) (6.8 ) (124.3 ) 140.5 Segment assets 1,137.3 283.2 154.4 238.0 1,812.9 Depreciation and amortization (1) 43.2 15.6 8.8 11.6 79.2 Investment in joint venture 130.8 - - - 130.8 Purchases of property, plant and equipment (1) 52.2 30.5 4.0 22.4 109.1 Americas EMEA Pacific Rim Unallocated Corporate Total For the year ended 2014 Net sales to external customers $ 798.3 $ 353.4 $ 142.6 $ - $ 1,294.3 Equity (earnings) from joint venture (61.6 ) (3.4 ) (0.1 ) - (65.1 ) Segment operating income (loss) 272.1 (5.4 ) (2.0 ) (66.6 ) 198.1 Segment assets 1,127.4 296.6 166.3 165.1 1,755.4 Depreciation and amortization (1) 44.7 12.9 8.4 10.8 76.8 Asset impairment (1) - - 0.4 - 0.4 Investment in joint venture 129.0 - - - 129.0 Purchases of property, plant and equipment (1) 42.5 75.2 10.4 11.4 139.5 (1)
Reconciliation Of Total Consolidated Operating Income To Earnings Before Income Taxes	2016 2015 2014 Segment operating income $ 184.6 $ 140.5 $ 198.1 Interest expense 49.8 45.3 46.0 Other non-operating expense 0.1 20.1 5.9 Other non-operating income (9.6 ) (5.0 ) (2.2 ) Earnings from continuing operations before income taxes $ 144.3 $ 80.1 $ 148.4
Schedule Of Sales Allocated To Geographic Area	2016 2015 2014 Geographic Areas Net trade sales Americas: United States $ 775.9 $ 745.9 $ 726.0 Canada 61.4 59.2 72.3 Total Americas 837.3 805.1 798.3 EMEA: United Kingdom 87.9 112.0 113.8 France 54.0 54.9 69.7 Netherlands 43.3 42.1 53.3 Russia 40.2 37.4 62.0 Other 37.7 43.5 54.6 Total EMEA 263.1 289.9 353.4 Pacific Rim: India 40.0 43.7 39.6 China 38.7 39.1 47.6 Australia 35.5 32.4 35.6 Other 19.9 21.1 19.8 Total Pacific Rim 134.1 136.3 142.6 Total net trade sales $ 1,234.5 $ 1,231.3 $ 1,294.3
Schedule Of Property, Plant And Equipment Allocated To Geographic Area	2016 2015 Property, plant and equipment, net at December 31, Americas: United States $ 426.7 $ 403.8 Canada 34.8 28.9 Other 0.1 0.1 Total Americas 461.6 432.8 EMEA: Russia 54.6 48.3 France 31.4 27.6 Germany 25.5 28.5 United Kingdom 18.0 21.8 Austria 17.4 17.6 Other 1.2 1.3 Total EMEA 148.1 145.1 Pacific Rim: China 58.5 69.1 Other 1.4 1.1 Total Pacific Rim 59.9 70.2 Total property, plant and equipment, net $ 669.6 $ 648.1
Reconciliation Of Unallocated Corporate Segment Operating Loss	For 2016, 2015 and 2014, Unallocated Corporate segment operating (loss) was comprised of the following: 2016 2015 2014 Corporate expenses $ (4.3 ) $ (90.0 ) $ (66.6 ) Separation costs (34.5 ) (34.3 ) - Total Unallocated Corporate segment operating (loss) $ (38.8 ) $ (124.3 ) $ (66.6 )

Discontinued Operations (Tables

Discontinued Operations (Tables)	12 Months Ended
	Dec. 31, 2016
AFI [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Summary of Results of Discontinued Operations	The following is a summary of the results of operations related to AFI, our former Resilient Flooring and Wood Flooring segments, which are presented as discontinued operations. 2016 2015 2014 Net sales $ 284.4 $ 1,188.7 $ 1,221.0 Cost of goods sold 237.2 962.3 1,020.8 Gross profit 47.2 226.4 200.2 Selling, general and administrative expenses 50.5 179.5 148.4 Intangible asset impairments - - 10.8 Operating (loss) income (3.3 ) 46.9 41.0 Other non-operating expense, net 1.1 3.1 4.2 (Loss) earnings from discontinued operations before income tax (4.4 ) 43.8 36.8 Income tax expense 0.1 17.8 13.9 (Loss) earnings from discontinued operations $ (4.5 ) $ 26.0 $ 22.9 The following is a summary of the carrying amount of the major classes of assets and liabilities classified as assets and liabilities of discontinued operations as of December 31, 2015 related to AFI. December 31, 2015 Assets Current assets: Cash and cash equivalents $ 35.5 Accounts and notes receivable, net 70.0 Inventories, net 242.8 Deferred income taxes 5.7 Other current assets 27.2 Total current assets discontinued operations 381.2 Property, plant, and equipment, less accumulated depreciation and amortization 448.2 Intangible assets, net 42.5 Deferred income taxes 1.5 Other non-current assets 0.9 Total non-current assets of discontinued operations 493.1 Total assets of discontinued operations $ 874.3 Liabilities Current liabilities: Accounts payable and accrued expenses $ 149.3 Total current liabilities 149.3 Long-term debt, less current installments 10.0 Postretirement benefit liabilities 85.2 Pension benefit liabilities 45.5 Other long-term liabilities 6.3 Deferred income taxes 7.3 Total non-current liabilities of discontinued operations 154.3 Total liabilities of discontinued operations $ 303.6
Summary of Total Depreciation and Amortization, Fixed and Intangible Asset Impairments, and Capital Expenditures Related to AFI	2016 2015 2014 Depreciation and amortization $ 11.4 $ 39.1 $ 46.6 Fixed and intangible asset impairments - - 15.4 Purchases of property, plant and equipment (12.1 ) (61.6 ) (77.6 )
DLW [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Summary of Results of Discontinued Operations	2014 (Loss) from discontinued operations before income tax $ (23.7 ) Income tax expense - (Loss) from discontinued operations $ (23.7 )
DLW and AFI [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Summary of Results of Discontinued Operations	2016 2015 2014 Gain (loss) on disposal of discontinued businesses before income tax $ 0.1 $ (0.8 ) $ (13.5 ) Income tax (benefit) (15.2 ) (42.0 ) (1.2 ) Net gain (loss) on disposal of discontinued businesses $ 15.3 $ 41.2 $ (12.3 )
AIP [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Summary of Results of Discontinued Operations	2015 2014 Gain (loss) on disposal of discontinued business before income tax $ 0.6 $ (3.5 ) Income tax expense (benefit) 0.2 (1.3 ) Net gain (loss) on disposal of discontinued business $ 0.4 $ (2.2 )

Accounts and Notes Receivable (

Accounts and Notes Receivable (Tables)	12 Months Ended
	Dec. 31, 2016
Receivables [Abstract]
Schedule of Accounts and Notes Receivable	December 31, 2016 December 31, 2015 Customer receivables $ 106.9 $ 114.0 Customer notes 1.5 0.7 Miscellaneous receivables 6.0 6.4 Less allowance for warranties, discounts, and losses (6.1 ) (6.8 ) Accounts and notes receivable, net $ 108.3 $ 114.3

Inventories (Tables)

Inventories (Tables)	12 Months Ended
	Dec. 31, 2016
Inventory Disclosure [Abstract]
Schedule of Inventories	December 31, 2016 December 31, 2015 Finished goods $ 80.5 $ 72.0 Goods in process 3.3 4.2 Raw materials and supplies 32.4 32.0 Less LIFO and other reserves (7.2 ) (6.8 ) Total inventories, net $ 109.0 $ 101.4
Summary Of Inventory Not Accounted For Under LIFO	December 31, 2016 December 31, 2015 International locations $ 63.8 $ 59.0 U.S. sourced products 4.2 5.5 Total $ 68.0 $ 64.5

Other Current Assets (Tables)

Other Current Assets (Tables)	12 Months Ended
	Dec. 31, 2016
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]
Schedule of Other Current Assets	December 31, 2016 December 31, 2015 Prepaid expenses $ 15.0 $ 20.4 Fair value of derivative assets 2.4 3.4 Certificates of deposit 0.4 7.6 Other 3.0 2.3 Total other current assets $ 20.8 $ 33.7

Property, Plant And Equipment (

Property, Plant And Equipment (Tables)	12 Months Ended
	Dec. 31, 2016
Property Plant And Equipment [Abstract]
Schedule Of Property, Plant And Equipment	December 31, 2016 December 31, 2015 Land $ 38.0 $ 38.3 Buildings 261.2 250.4 Machinery and equipment 706.4 669.7 Computer software 18.7 16.8 Construction in progress 90.8 76.7 Less accumulated depreciation and amortization (445.5 ) (403.8 ) Net property, plant and equipment $ 669.6 $ 648.1

Equity Investments (Tables)

Equity Investments (Tables) - WAVE [Member]	12 Months Ended
	Dec. 31, 2016
Schedule of Equity Method Investments [Line Items]
Summary Of The Difference Between Carrying Amount And Underlying Equity OF Equity Method Investment	December 31, 2016 December 31, 2015 Property, plant and equipment $ 0.4 $ 0.4 Other intangibles 135.8 141.3 Goodwill 30.4 30.4 Total $ 166.6 $ 172.1
Summary Of Investment In Joint Venture, Balance Sheet Data	December 31, 2016 December 31, 2015 Current assets $ 113.1 $ 118.7 Noncurrent assets 50.3 52.1 Current liabilities 40.7 23.3 Other noncurrent liabilities 244.6 248.9
Summary of Investment in Joint Venture, Income Statement Data	2016 2015 2014 Net sales $ 393.7 $ 374.4 $ 392.5 Gross profit 208.7 187.4 185.1 Net earnings 158.9 144.4 142.2

Intangible Assets (Tables)

Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2016
Goodwill And Intangible Assets Disclosure [Abstract]
Schedule of Intangible Assets	The following table details amounts related to our intangible assets as of December 31, 2016 and 2015: December 31, 2016 December 31, 2015 Estimated Useful Life Gross Carrying Amount Accumulated Amortization Gross Carrying Amount Accumulated Amortization Amortizing intangible assets Customer relationships 20 years $ 165.3 $ 84.9 $ 165.4 $ 76.7 Developed technology 15 years 82.8 55.4 82.2 49.9 Other Various 13.2 2.0 14.8 1.9 Total $ 261.3 $ 142.3 $ 262.4 $ 128.5 Non-amortizing intangible assets Trademarks and brand names Indefinite 314.4 313.3 Total intangible assets $ 575.7 $ 575.7
Schedule of Amortization Expense	2016 2015 2014 Amortization expense $ 14.0 $ 14.2 $ 14.0

Other Non-Current Assets (Table

Other Non-Current Assets (Tables)	12 Months Ended
	Dec. 31, 2016
Other Assets Noncurrent Disclosure [Abstract]
Schedule Of Other Non-Current Assets	December 31, 2016 December 31, 2015 Cash surrender value of company-owned life insurance policies $ 52.7 $ 51.6 Fair value of derivative assets 7.6 - Other 4.6 5.4 Total other non-current assets $ 64.9 $ 57.0

Accounts Payable And Accrued 48

Accounts Payable And Accrued Expenses (Tables)	12 Months Ended
	Dec. 31, 2016
Payables And Accruals [Abstract]
Schedule Of Accounts Payable And Accrued Expenses	December 31, 2016 December 31, 2015 Payables, trade and other $ 108.6 $ 127.5 Employment costs 33.7 44.7 Current portion of pension and postretirement benefit liabilities 12.7 14.3 Contingent liability related to discontinued operations 11.9 12.1 Other 30.2 32.5 Total accounts payable and accrued expenses $ 197.1 $ 231.1

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Schedule Of Deferred Tax Assets and Liabilities	December 31, 2016 December 31, 2015 Deferred income tax assets (liabilities) Net operating losses $ 71.9 $ 83.7 Postretirement benefits 38.1 45.4 Pension benefit liabilities 45.2 74.0 Deferred compensation 17.8 24.2 Foreign exchange unrealized 1.3 18.8 Foreign tax credit carryforwards 19.3 12.3 State tax credit carryforwards 9.1 9.7 Other 16.9 30.4 Total deferred income tax assets 219.6 298.5 Valuation allowances (60.5 ) (69.1 ) Net deferred income tax assets 159.1 229.4 Intangibles (211.8 ) (214.3 ) Accumulated depreciation (51.7 ) (52.5 ) Prepaid pension costs (18.8 ) - Inventories (8.8 ) (7.5 ) Other (9.1 ) (13.1 ) Total deferred income tax liabilities (300.2 ) (287.4 ) Net deferred income tax liabilities $ (141.1 ) $ (58.0 ) Deferred income taxes have been classified in the Consolidated Balance Sheet as: Deferred income tax assets - current $ - $ 29.8 Deferred income tax assets - noncurrent 15.4 19.5 Deferred income tax liabilities - current - (0.6 ) Deferred income tax liabilities - noncurrent (156.5 ) (106.7 ) Net deferred income tax liabilities $ (141.1 ) $ (58.0 )
Schedule Of Income Tax Expense (Benefit)	2016 2015 2014 Details of taxes Earnings (loss) from continuing operations before income taxes: Domestic $ 144.9 $ 143.0 $ 187.7 Foreign (18.3 ) (38.2 ) (39.3 ) Elimination of dividends from foreign subsidiaries 17.7 (24.7 ) - Total $ 144.3 $ 80.1 $ 148.4 Income tax expense (benefit): Current: Federal $ 2.5 $ 25.1 $ 26.6 Foreign 11.7 5.6 8.1 State (0.5 ) 0.2 1.4 Total current 13.7 30.9 36.1 Deferred: Federal 22.5 12.7 21.0 Foreign (2.2 ) (0.5 ) 0.1 State 16.4 10.4 12.1 Total deferred 36.7 22.6 33.2 Total income tax expense $ 50.4 $ 53.5 $ 69.3
Schedule Of The Reconciliation To U.S. Statutory Tax Rate	2016 2015 2014 Reconciliation to U.S. statutory tax rate Continuing operations tax at statutory rate $ 50.5 $ 28.0 $ 51.9 Increase in valuation allowances on deferred foreign income tax assets 16.2 19.3 18.7 State income tax expense, net of federal benefit 3.8 4.7 4.8 Separation costs 15.1 2.9 - Permanent book/tax differences (2.6 ) 3.0 (1.5 ) Increase in valuation allowances on deferred domestic income tax assets 0.8 4.1 3.0 Domestic production activities (3.1 ) (5.1 ) (5.8 ) Tax on foreign and foreign-source income (3.4 ) - (0.7 ) Federal statute closure (15.2 ) - - Benefit from write-off of historical tax basis of foreign subsidiary (13.7 ) - - Other 2.0 (3.4 ) (1.1 ) Tax expense at effective rate $ 50.4 $ 53.5 $ 69.3
Schedule Of Unrecognized Tax Benefits	2016 2015 2014 Unrecognized tax benefits balance at January 1, $ 150.6 $ 142.6 $ 145.2 Gross change for current year positions 2.3 10.4 10.5 Increases for prior period positions 0.2 1.9 2.9 Decrease for prior period positions (12.8 ) (4.1 ) (14.1 ) Decrease due to settlements and payments - - (1.2 ) Decrease due to statute expirations (53.4 ) (0.2 ) (0.7 ) Unrecognized tax benefits balance at December 31, $ 86.9 $ 150.6 $ 142.6
Schedule Of Other Taxes	2016 2015 2014 Other taxes Payroll taxes $ 26.5 $ 27.4 $ 30.6 Property, franchise and capital stock taxes 6.2 6.4 6.4

Debt (Tables)

Debt (Tables)	12 Months Ended
	Dec. 31, 2016
Debt Disclosure [Abstract]
Schedule Of Debt	December 31, 2016 Weighted Average Interest Rate for 2016 December 31, 2015 Weighted Average Interest Rate for 2015 Term loan A due 2021 $ 600.0 3.29 % $ 496.0 3.24 % Term loan B due 2023 248.1 4.58 % 461.9 3.50 % Tax exempt bonds due 2041 35.0 0.45 % 35.1 0.87 % Principal debt outstanding 883.1 3.54 % 993.0 3.28 % Unamortized debt financing costs (9.5 ) (4.7 ) Long-term debt 873.6 3.54 % 988.3 3.28 % Less current portion and short-term debt 25.0 3.42 % 52.1 3.26 % Total long-term debt, less current portion $ 848.6 3.54 % $ 936.2 3.28 %
Scheduled Payments Of Long-Term Debt	Scheduled payments of long-term debt: 2017 $ 25.0 2018 32.5 2019 55.0 2020 62.5 2021 437.5 2022 and later 270.6
Schedule Of Letters Of Credit	The following table presents details related to our letters of credit: As of December 31, 2016 Financing Arrangement Limit Used Available Revolving credit facility $ 150.0 $ - $ 150.0 Bi-lateral facility 25.0 19.2 5.8 Accounts receivable securitization facility 32.2 36.2 (4.0 ) Foreign lines of credit 0.2 0.1 0.1 Total $ 207.4 $ 55.5 $ 151.9

Pension And Other Benefit Pro51

Pension And Other Benefit Programs (Tables)	12 Months Ended
	Dec. 31, 2016
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Schedule Of Amounts Recognized In Assets And Liabilities	Amounts recognized in assets (liabilities) on the consolidated balance sheets at year end consist of: U.S. Pension Plans Non-U.S. Pension Plans Retiree Health and Life Insurance Benefits 2016 2015 2016 2015 2016 2015 Prepaid pension costs $ 48.7 $ - $ 7.9 $ 8.3 $ - $ - Accounts payable and accrued expenses (3.9 ) (4.0 ) (0.5 ) (0.7 ) (8.3 ) (9.6 ) Postretirement benefit liabilities - - - - (84.8 ) (87.2 ) Pension benefit liabilities (54.3 ) (31.4 ) (32.0 ) (30.7 ) - - Net amount recognized $ (9.5 ) $ (35.4 ) $ (24.6 ) $ (23.1 ) $ (93.1 ) $ (96.8 )
Schedule Of Amounts In Accumulated Other Comprehensive Income (Loss) At Year End	Pre-tax amounts recognized in accumulated other comprehensive (loss) income at year end consist of: U.S. Pension Plans Non-U.S. Pension Plans Retiree Health and Life Insurance Benefits 2016 2015 2016 2015 2016 2015 Net actuarial (loss) gain $ (553.5 ) $ (775.6 ) $ (22.4 ) $ (26.6 ) $ 51.7 $ 91.5 Prior service (cost) credit (1.5 ) (3.9 ) (0.6 ) (0.6 ) 0.1 0.6 Accumulated other comprehensive (loss) income $ (555.0 ) $ (779.5 ) $ (23.0 ) $ (27.2 ) $ 51.8 $ 92.1
Schedule Of Expected Benefit Payments	U.S. Pension Benefits (1) Non-U.S. Pension Benefits Retiree Health and Life Insurance Benefits, Net 2017 $ 109.6 $ 6.5 $ 8.4 2018 108.7 6.7 8.2 2019 108.3 7.3 7.8 2020 106.8 7.7 7.4 2021 105.8 8.1 7.0 2022 - 2026 508.8 44.0 31.3 (1) We were not required and did not make contributions to the RIP during 2016 or 2015 as, based on guidelines established by the Pension Benefit Guaranty Corporation, the RIP had sufficient assets to fund its distribution obligations. Benefit payments to participants have been made directly from the RIP to participants from the assets of the plan.
Defined Benefit Pension Plans [Member]
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Schedule Of Net Funded Status	U.S. Pension Plans Non-U.S. Pension Plans 2016 2015 2016 2015 Change in benefit obligation: Benefit obligation as of beginning of period $ 1,918.1 $ 2,069.9 $ 234.0 $ 261.4 Service cost 10.1 16.3 2.2 2.4 Interest cost 69.8 80.9 6.9 8.3 Plan participants' contributions - - 0.1 0.1 Settlements and curtailments - - 0.2 - Foreign currency translation adjustment - - (35.6 ) (16.5 ) Actuarial loss (gain) 0.6 (130.5 ) 37.1 (6.7 ) Benefits paid (111.0 ) (118.5 ) (9.4 ) (15.0 ) Separation of AFI (365.2 ) - (20.5 ) - Benefit obligation as of end of period $ 1,522.4 $ 1,918.1 $ 215.0 $ 234.0 U.S. Pension Plans Non-U.S. Pension Plans 2016 2015 2016 2015 Change in plan assets: Fair value of plan assets as of beginning of period $ 1,837.2 $ 1,986.3 $ 210.9 $ 232.4 Actual return on plan assets 144.7 (34.2 ) 40.8 3.3 Employer contribution 4.2 3.6 2.9 3.4 Plan participants' contributions - - 0.1 0.1 Foreign currency translation adjustment - - (35.3 ) (13.3 ) Benefits paid (111.0 ) (118.5 ) (9.4 ) (15.0 ) Separation of AFI (362.2 ) - (19.6 ) - Fair value of plan assets as of end of period $ 1,512.9 $ 1,837.2 $ 190.4 $ 210.9 Funded status of the plans $ (9.5 ) $ (80.9 ) $ (24.6 ) $ (23.1 )
Schedule Of Assumptions Used	U.S. Pension Plans Non-U.S. Pension Plans 2016 2015 2016 2015 Weighted-average assumptions used to determine benefit obligations at end of period: Discount rate 4.12 % 4.40 % 2.40 % 3.40 % Rate of compensation increase 3.10 % 3.10 % 3.10 % 2.60 % Weighted-average assumptions used to determine net periodic benefit cost for the period: Discount rate 4.40 % 4.05 % 3.10 % 3.40 % Expected return on plan assets 6.75 % 7.00 % 4.20 % 4.50 % Rate of compensation increase 3.10 % 3.10 % 2.60 % 2.60 %
Schedule Of Benefit Obligations In Excess Of Assets	U.S. Pension Plans Non-U.S. Pension Plans 2016 2015 2016 2015 Pension plans with benefit obligations in excess of assets Projected benefit obligation, December 31 $ 58.2 $ 1,918.1 $ 40.9 $ 58.3 Accumulated benefit obligation, December 31 58.1 1,896.8 39.4 52.7 Fair value of plan assets, December 31 - 1,837.2 8.3 26.8
Schedule Of Periodic Benefit Costs (Credits)	The components of the pension cost are as follows: U.S. Pension Plans Non-U.S. Pension Plans 2016 2015 2014 2016 2015 2014 Service cost of benefits earned during the period $ 10.1 $ 16.3 $ 14.4 $ 2.2 $ 2.4 $ 2.5 Interest cost on projected benefit obligation 69.8 80.9 85.7 6.9 8.3 10.5 Expected return on plan assets (110.6 ) (140.3 ) (139.3 ) (7.8 ) (9.0 ) (11.5 ) Amortization of prior service cost 1.6 1.9 1.9 - - - Recognized net actuarial loss 48.3 72.8 42.4 1.2 2.8 2.1 Net periodic pension cost $ 19.2 $ 31.6 $ 5.1 $ 2.5 $ 4.5 $ 3.6 Less: Discontinued operations 2.2 11.0 1.2 - (0.2 ) (0.1 ) Net periodic pension cost, continuing operations $ 17.0 $ 20.6 $ 3.9 $ 2.5 $ 4.7 $ 3.7
Schedule Of Defined Asset Allocation	U.S. Pension Plans Non-U.S. Pension Plans Target Target Weight at Weight at December 31, Position at December 31, December 31, Position at December 31, Asset Class 2016 2016 2015 2016 2016 2015 Long duration bonds 59.0 % 55.0 % 59.0 % 50.0 % 49.0 % 46.0 % Equities 30.0 % 26.0 % 26.0 % 43.0 % 38.0 % 42.0 % High yield bonds and real assets 6.0 % 7.0 % 8.0 % - - - Real estate and private equity 4.0 % 5.0 % 5.0 % 7.0 % 7.0 % 7.0 % Other 1.0 % 7.0 % 2.0 % - 6.0 % 5.0 %
Summary Of Fair Value Of Assets Plan	Value at December 31, 2016 U.S. Pension Plans Non-U.S. Pension Plans Description Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Bonds $ - $ 831.7 $ - $ 831.7 $ 1.0 $ 92.9 $ - $ 93.9 Equities 329.0 60.1 - 389.1 1.0 71.5 - 72.5 High yield bonds - 67.6 - 67.6 - - - - Real assets - 32.5 - 32.5 - - - - Real estate - - - - 0.1 0.7 - 0.8 Other investments - - 2.8 2.8 - 0.6 4.6 5.2 Cash and other short-term investments 34.2 78.2 - 112.4 5.9 - - 5.9 Net assets measured at fair value $ 363.2 $ 1,070.1 $ 2.8 $ 1,436.1 $ 8.0 $ 165.7 $ 4.6 $ 178.3 Investments measured at net asset value 76.8 12.1 Net assets $ 1,512.9 $ 190.4 Value at December 31, 2015 U.S. Pension Plans Non-U.S. Pension Plans Description Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Bonds $ - $ 1,069.9 $ - $ 1,069.9 $ 1.1 $ 95.9 $ - $ 97.0 Equities 443.0 64.0 - 507.0 1.1 88.0 - 89.1 High yield bonds - 82.0 - 82.0 - - - - Real assets - 32.1 - 32.1 - - - - Real estate - - - - 0.1 0.7 - 0.8 Other investments - - 2.9 2.9 - 0.9 4.9 5.8 Cash and other short-term investments 12.8 48.0 - 60.8 3.4 - - 3.4 Net assets measured at fair value $ 455.8 $ 1,296.0 $ 2.9 $ 1,754.7 $ 5.7 $ 185.5 $ 4.9 $ 196.1 Investments measured at net asset value 82.5 14.8 Net assets $ 1,837.2 $ 210.9
Summary Of Assets Measured At NAV	Value at December 31, 2016 U.S. Pension Plans Non-U.S. Pension Plans Description Fair Value Unfunded Commitments Fair Value Unfunded Commitments Redemption Frequency Redemption Notice Period Real estate $ 73.3 $ 2.2 $ 12.1 $ - Monthly/Quarterly 2-90 Days Other investments 3.5 0.9 - - None None Investments measured at net asset value $ 76.8 $ 3.1 $ 12.1 $ - Value at December 31, 2015 U.S. Pension Plans Non-U.S. Pension Plans Description Fair Value Unfunded Commitments Fair Value Unfunded Commitments Redemption Frequency Redemption Notice Period Real estate $ 79.7 $ 2.3 $ 14.8 $ - Monthly/Quarterly 2-90 Days Other investments 2.8 1.5 - - None None Investments measured at net asset value $ 82.5 $ 3.8 $ 14.8 $ -
U.S. Defined-Benefit Retiree Health And Life Insurance Plans [Member]
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Schedule Of Net Funded Status	2016 2015 U.S. defined-benefit retiree health and life insurance plans Change in benefit obligation: Benefit obligation as of beginning of period $ 190.3 $ 221.4 Service cost 0.4 0.9 Interest cost 4.7 8.1 Plan participants' contributions 3.2 4.6 Actuarial (gain) (7.7 ) (22.7 ) Benefits paid (11.5 ) (22.0 ) Separation of AFI (86.3 ) - Benefit obligation as of end of period $ 93.1 $ 190.3 2016 2015 Change in plan assets: Fair value of plan assets as of beginning of period $ - $ - Employer contribution 8.3 17.4 Plan participants' contributions 3.2 4.6 Benefits paid (11.5 ) (22.0 ) Fair value of plan assets as of end of period $ - $ - Funded status of the plans $ (93.1 ) $ (190.3 )
Schedule Of Assumptions Used	2016 2015 U.S. defined-benefit retiree health and life insurance plans Weighted-average discount rate used to determine benefit obligations at end of period 4.10 % 4.25 % Weighted-average discount rate used to determine net periodic benefit cost for the period 4.17 % 3.90 %
Schedule Of Periodic Benefit Costs (Credits)	The components of postretirement benefits costs are as follows: 2016 2015 2014 U.S. defined-benefit retiree health and life insurance plans Service cost of benefits earned during the period $ 0.4 $ 0.9 $ 0.9 Interest cost on accumulated postretirement benefit obligation 4.7 8.1 10.9 Amortization of prior service (credit) (0.3 ) (0.6 ) (0.6 ) Amortization of net actuarial gain (6.1 ) (7.8 ) (4.2 ) Net periodic postretirement benefit (credit) cost $ (1.3 ) $ 0.6 $ 7.0 Less: Discontinued operations (0.2 ) 0.8 3.7 Net periodic postretirement benefit (credit) cost, continuing operations $ (1.1 ) $ (0.2 ) $ 3.3
Schedule Of Effect Of One-Percentage-Point Change In Assumed Health Care Cost Trend Rates	One percentage point Increase Decrease U.S. defined benefit retiree health and life insurance benefits plans Effect on total service and interest cost components $ (0.1 ) $ - Effect on postretirement benefit obligation (0.8 ) 0.5

Financial Instruments (Tables)

Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2016
Fair Value Disclosures [Abstract]
Estimated Fair Value of Financial Instruments	The estimated fair values of our financial instruments are as follows: December 31, 2016 December 31, 2015 Carrying amount Estimated fair value Carrying amount Estimated fair value Assets/(Liabilities), net: Total debt, including current portion $ (873.6 ) $ (873.7 ) $ (988.3 ) $ (989.4 ) Foreign currency contracts 1.6 1.6 3.3 3.3 Natural gas contracts 1.0 1.0 (0.8 ) (0.8 ) Interest rate swap contracts 6.9 6.9 (10.6 ) (10.6 )
Fair Value Measurement of Assets and Liabilities	The fair value measurement of assets and liabilities is summarized below: December 31, 2016 December 31, 2015 Fair value based on Fair value based on Quoted, active markets Other observable inputs Quoted, active markets Other observable inputs Level 1 Level 2 Level 1 Level 2 Assets/(Liabilities), net: Foreign currency contracts $ 1.6 $ - $ 3.3 $ - Natural gas contracts - 1.0 - (0.8 ) Interest rate swap contracts - 6.9 - (10.6 )

Derivative Financial Instrume53

Derivative Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2016
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Summary of Interest Rate Swaps	The following table summarizes our interest rate swaps as of December 31, 2016: Trade Date Notional Amount Coverage Period Risk Coverage November 13, 2016 $ 250.0 November 2016 to March 2018 Term Loan A November 13, 2016 $ 200.0 November 2016 to March 2021 Term Loan A April 1, 2016 $ 100.0 April 2016 to March 2023 Term Loan B
Summary of Fair Value of Derivative Instruments on Consolidated Balance Sheet	Derivative Assets Derivative Liabilities Fair Value Fair Value Balance Sheet Location December 2016 December 31, 2015 Balance Sheet Location December 31, 2016 December 31, 2015 Derivatives designated as hedging instruments Natural gas commodity contracts Other current assets $ 1.0 $ - Accounts payable and accrued expenses $ - $ 0.8 Foreign exchange contracts Other current assets 1.4 3.4 Accounts payable and accrued expenses - 0.1 Foreign exchange contracts Other non-current assets 0.2 - Other long-term liabilities - - Interest rate swap contracts Other non-current assets 7.4 - Other long-term liabilities 0.5 10.6 Total derivatives designated as hedging instruments $ 10.0 $ 3.4 $ 0.5 $ 11.5
Summary of Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income	Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income (“AOCI”) (Effective Portion) Location of Gain (Loss) Reclassified from AOCI into Income (Effective Portion) Gain (Loss) Reclassified from AOCI into Income (Effective Portion) 2016 2015 2014 2016 2015 2014 Derivatives in Cash Flow Hedging Relationships Natural gas commodity contracts $ 0.6 $ (2.3 ) $ (2.9 ) Cost of goods sold $ (1.2 ) $ (4.4 ) $ 0.7 Foreign exchange contracts – purchases - 1.2 1.1 Cost of goods sold 0.2 1.8 (0.2 ) Foreign exchange contracts – sales (2.9 ) 4.7 4.6 Net sales 1.4 3.8 1.8 Interest rate swap contracts 6.8 (2.1 ) (9.3 ) Interest expense (8.3 ) (0.8 ) - Total $ 4.5 $ 1.5 $ (6.5 ) $ (7.9 ) $ 0.4 $ 2.3

Product Warranties (Tables)

Product Warranties (Tables)	12 Months Ended
	Dec. 31, 2016
Product Warranties Disclosures [Abstract]
Summary of Activity for the Accrual of Product Warranties	The following table summarizes the activity for the accrual of product warranties for December 31, 2016 and 2015: 2016 2015 Balance at beginning of period $ 0.4 $ 0.2 Current year warranty accruals 8.6 2.0 Reductions for payments (8.4 ) (1.8 ) Balance at end of period $ 0.6 $ 0.4

Other Long-Term Liabilities (Ta

Other Long-Term Liabilities (Tables)	12 Months Ended
	Dec. 31, 2016
Other Liabilities Disclosure [Abstract]
Schedule of Other Long-Term Liabilities	December 31, 2016 December 31, 2015 Long-term deferred compensation arrangements $ 16.3 $ 18.7 Long-term portion of derivative liabilities 0.5 10.6 Environmental liabilities 4.7 6.0 Other 7.6 8.0 Total other long-term liabilities $ 29.1 $ 43.3

Share-Based Compensation Plans

Share-Based Compensation Plans (Tables)	12 Months Ended
	Dec. 31, 2016
Schedule of Changes in Stock Options	Number of shares (thousands) Weighted-average exercise price Weighted-average remaining contractual term (years) Aggregate intrinsic value (millions) Option shares outstanding, December 31, 2015 1,410.3 $ 40.66 Option shares exercised (25.6 ) (26.26 ) Options forfeited (23.5 ) (45.68 ) Net impact as a result of AFI separation (10.6 ) (44.21 ) Option shares outstanding, December 31, 2016 1,350.6 $ 34.66 4.5 $ 11.6 Option shares exercisable, December 31, 2016 1,276.7 33.94 4.5 $ 11.6 Option shares vested and expected to vest, December 31, 2016 1,350.3 34.66 4.5 $ 11.6
Schedule of Information Related to Stock Option Exercises	The following table presents information related to stock option exercises: 2016 2015 2014 Total intrinsic value of stock options exercised $ 0.4 $ 3.5 $ 17.1 Cash proceeds received from stock options exercised $ 0.7 $ 6.4 $ 17.8 Tax (expense) deduction realized from stock options exercised $ (0.1 ) $ 0.4 $ 2.7
Schedule of Restricted Stock and Restricted Stock Units Activity	Non-Vested Stock Awards RSUs PSUs Number of shares (thousands) Weighted- average fair value at grant date Number of shares (thousands) Weighted- average fair value at grant date December 31, 2015 413.3 $ 54.66 216.9 $ 52.84 Granted 114.3 41.53 254.4 39.23 Vested (171.5 ) (52.83 ) (61.6 ) (51.79 ) Forfeited (57.0 ) (48.31 ) (110.5 ) (52.12 ) Net impact as a result of AFI separation (74.6 ) (40.32 ) (8.8 ) (45.74 ) December 31, 2016 224.5 $ 44.94 290.4 $ 40.29
PSUs [Member]
Schedule of Weighted-Average Assumptions	2016 Weighted-average grant date fair value of market based PSUs granted (dollars per award) $ 37.75 Assumptions Risk free rate of return 0.8 % Expected volatility 28.0 % Expected term (in years) 2.7 Expected dividend yield 0.0 %
Options [Member]
Schedule of Weighted-Average Assumptions	2014 Weighted-average grant date fair value of options granted (dollars per option) $ 24.93 Assumptions Risk free rate of return 1.9 % Expected volatility 46.5 % Expected term (in years) 6.0 Expected dividend yield 0.0 %

Employee Costs (Tables)

Employee Costs (Tables)	12 Months Ended
	Dec. 31, 2016
Compensation Related Costs [Abstract]
Schedule Of Employee Costs	2016 2015 2014 Wages, salaries and incentive compensation $ 265.6 $ 267.9 $ 279.3 Payroll taxes 26.5 27.4 30.6 Defined contribution and defined benefit pension plan expense, net 29.7 34.5 18.0 Insurance and other benefit costs 24.9 20.6 21.9 Share-based compensation 12.1 10.9 10.3 Total $ 358.8 $ 361.3 $ 360.1

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2016
Leases [Abstract]
Schedule Of Rent Expense	2016 2015 2014 Rent expense $ 16.6 $ 17.0 $ 16.2 Sublease (income) (0.3 ) (0.4 ) (0.4 ) Net rent expense $ 16.3 $ 16.6 $ 15.8
Schedule Of Future Minimum Payments	Total Minimum Lease Payments Sublease (Income) Net Minimum Lease Payments Scheduled minimum lease payments 2017 $ 7.4 $ (0.1 ) $ 7.3 2018 6.0 (0.1 ) 5.9 2019 4.6 (0.1 ) 4.5 2020 3.2 (0.1 ) 3.1 2021 2.4 - 2.4 Thereafter 2.4 - 2.4 Total $ 26.0 $ (0.4 ) $ 25.6

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2016
Stockholders Equity Note [Abstract]
Components of Accumulated Other Comprehensive Income (Loss)	December 31, 2016 December 31, 2015 Foreign currency translation adjustments $ (71.6 ) $ (33.8 ) Derivative gain (loss), net 3.8 (3.3 ) Pension and postretirement adjustments (336.0 ) (450.3 ) Accumulated other comprehensive (loss) $ (403.8 ) $ (487.4 )
Schedule of Other Comprehensive Income (Loss)	Pre-tax Amount Tax Benefit After- tax Amount 2016 Foreign currency translation adjustments $ (33.2 ) $ - $ (33.2 ) Derivative gain, net 11.9 (4.4 ) 7.5 Pension and postretirement adjustments 75.7 (26.4 ) 49.3 Total other comprehensive income $ 54.4 $ (30.8 ) $ 23.6 Pre-tax Amount Tax Expense After-tax Amount 2015 Foreign currency translation adjustments $ (25.5 ) $ - $ (25.5 ) Derivative gain, net 1.1 (0.4 ) 0.7 Pension and postretirement adjustments 50.7 (17.8 ) 32.9 Total other comprehensive income $ 26.3 $ (18.2 ) $ 8.1 Pre-tax Amount Tax Benefit After-tax Amount 2014 Foreign currency translation adjustments $ (29.6 ) $ - $ (29.6 ) Derivative (loss), net (4.9 ) 1.6 (3.3 ) Pension and postretirement adjustments (153.6 ) 62.6 (91.0 ) Total other comprehensive (loss) income $ (188.1 ) $ 64.2 $ (123.9 )
Schedule of Accumulated Other Comprehensive Income Activity	Foreign Currency Translation Adjustments (1) Derivative (Loss) Gain (1) Pension and Postretirement Adjustments (1) Total Other Comprehensive (Loss) (1) Balance, December 31, 2014 $ (8.3 ) $ (4.0 ) $ (483.2 ) $ (495.5 ) Other comprehensive (loss) income before reclassifications, net of tax expense (benefit) of $ -, $1.8, ($6.4), and ($4.6) (25.5 ) 3.5 (12.0 ) (34.0 ) Amounts reclassified from accumulated other comprehensive income - (2.8 ) 44.9 42.1 Net current period other comprehensive (loss) income (25.5 ) 0.7 32.9 8.1 Balance, December 31, 2015 $ (33.8 ) $ (3.3 ) $ (450.3 ) $ (487.4 ) Separation of AFI, net of tax (benefit) of $-, $-, ($39.2), and ($39.2) (4.6 ) (0.4 ) 65.0 60.0 Other comprehensive (loss) income before reclassifications, net of tax (benefit) of $ -, ($1.8), ($10.9), and ($12.8) (33.2 ) 3.0 20.2 (10.0 ) Amounts reclassified from accumulated other comprehensive income - 4.5 29.1 33.6 Net current period other comprehensive (loss) income (33.2 ) 7.5 49.3 23.6 Balance, December 31, 2016 $ (71.6 ) $ 3.8 $ (336.0 ) $ (403.8 ) (1) Amounts are net of tax
Reclassification out of Accumulated Other Comprehensive Income	Amounts Reclassified from AOCI Affected Line Item in the Consolidated Statement of Earnings and Comprehensive Income 2016 2015 Derivative Adjustments: Natural gas commodity contracts $ 1.2 $ 4.4 Cost of goods sold Foreign exchange contracts - purchases (0.2 ) (1.8 ) Cost of goods sold Foreign exchange contracts - sales (1.4 ) (3.8 ) Net sales Interest rate swap contracts 8.3 0.8 Interest expense Total income (loss) from continuing operations, before tax 7.9 (0.4 ) Tax impact (2.8 ) 0.1 Income tax expense Total income (loss) from continuing operations, net of tax 5.1 (0.3 ) Total (loss) from discontinued operations, net of tax benefit of ($0.3) and ($1.3) (0.6 ) (2.5 ) Total income (loss), net of tax 4.5 (2.8 ) Pension and Postretirement Adjustments: Prior service cost amortization 0.6 0.2 Cost of goods sold Prior service cost amortization 0.6 0.4 SG&A expense Amortization of net actuarial loss 20.7 22.1 Cost of goods sold Amortization of net actuarial loss 18.4 21.3 SG&A expense Total expense from continuing operations, before tax 40.3 44.0 Tax impact (14.1 ) (15.4 ) Income tax expense Total expense from continuing operations, net of tax 26.2 28.6 Total expense from discontinued operations net of tax expense of $1.5 and $8.8 2.9 16.3 Total expense, net of tax 29.1 44.9 Total reclassifications for the period $ 33.6 $ 42.1

Supplemental Financial Inform60

Supplemental Financial Information (Tables)	12 Months Ended
	Dec. 31, 2016
Supplemental Financial Information [Abstract]
Schedule Of Supplemental Financial Information	2016 2015 2014 Selected operating expense Maintenance and repair costs $ 53.0 $ 53.0 $ 53.1 Research and development costs 18.8 19.7 19.8 Advertising costs 6.9 7.8 7.1 Other non-operating expense Foreign currency transaction loss, net of hedging activity $ - $ 19.4 $ 5.9 Other 0.1 0.7 - Total $ 0.1 $ 20.1 $ 5.9 Other non-operating income Interest income $ 2.6 $ 1.9 $ 2.1 Foreign currency transaction gain, net of hedging activity 6.7 3.0 - Other 0.3 0.1 0.1 Total $ 9.6 $ 5.0 $ 2.2

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2016
Earnings Per Share [Abstract]
Reconciliation of Net Earnings to Net Earnings Attributable to Common Shares Used in Basic and Diluted Calculation	2016 2015 2014 Earnings from continuing operations $ 93.9 $ 26.6 $ 79.1 Earnings allocated to participating non-vested share awards (0.3 ) (0.1 ) (0.4 ) Earnings from continuing operations attributable to common shares $ 93.6 $ 26.5 $ 78.7
Reconciliation of Basic Shares Outstanding to Diluted Shares Outstanding	2016 2015 2014 (in millions) Basic shares outstanding 55.4 55.5 55.0 Dilutive effect of common stock equivalents 0.3 0.4 0.4 Diluted shares outstanding 55.7 55.9 55.4

Business (Details)

Business (Details) $ in Millions	Apr. 01, 2016entity	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Business [Abstract]
Common stock split ratio of AFI share to two AWI shares	0.5
Number of independent publicly-traded companies from separation | entity	2
Separation costs | $		$ 34.5	$ 34.3

Summary of Significant Accoun63

Summary of Significant Accounting Policies (Narrative) (Details)	12 Months Ended
	Dec. 31, 2016USD ($)customer	Dec. 31, 2015USD ($)customer	Dec. 31, 2014USD ($)customer
Significant Accounting Policies [Line Items]
Net sales	$ 1,234,500,000	$ 1,231,300,000	$ 1,294,300,000
Increase (decrease) in restricted cash	4,000,000
Restricted cash		0	$ 0
ASU 2015-03 And 2015-15 [Member]
Significant Accounting Policies [Line Items]
Reduction to other non-current assets and decrease to long-term debt	$ 9,500,000	$ 4,700,000
Customer Relationships [Member]
Significant Accounting Policies [Line Items]
Definite-lived intangible assets, useful life	20 years
Developed Technology [Member]
Significant Accounting Policies [Line Items]
Definite-lived intangible assets, useful life	15 years
Minimum [Member] | Machinery And Equipment [Member]
Significant Accounting Policies [Line Items]
Useful Life	3 years
Minimum [Member] | Computer Equipment [Member]
Significant Accounting Policies [Line Items]
Useful Life	3 years
Minimum [Member] | Office Furniture And Equipment [Member]
Significant Accounting Policies [Line Items]
Useful Life	5 years
Minimum [Member] | Dryer Components [Member]
Significant Accounting Policies [Line Items]
Useful Life	3 years
Minimum [Member] | Heavy Production Equipment [Member]
Significant Accounting Policies [Line Items]
Useful Life	10 years
Minimum [Member] | Buildings [Member]
Significant Accounting Policies [Line Items]
Useful Life	15 years
Minimum [Member] | Computer Software [Member]
Significant Accounting Policies [Line Items]
Useful Life	3 years
Maximum [Member] | Machinery And Equipment [Member]
Significant Accounting Policies [Line Items]
Useful Life	15 years
Maximum [Member] | Computer Equipment [Member]
Significant Accounting Policies [Line Items]
Useful Life	5 years
Maximum [Member] | Office Furniture And Equipment [Member]
Significant Accounting Policies [Line Items]
Useful Life	7 years
Maximum [Member] | Dryer Components [Member]
Significant Accounting Policies [Line Items]
Useful Life	7 years
Maximum [Member] | Heavy Production Equipment [Member]
Significant Accounting Policies [Line Items]
Useful Life	15 years
Maximum [Member] | Buildings [Member]
Significant Accounting Policies [Line Items]
Useful Life	30 years
Maximum [Member] | Computer Software [Member]
Significant Accounting Policies [Line Items]
Useful Life	7 years
Net Sales [Member]
Significant Accounting Policies [Line Items]
Number of customers accounted for significant percentage of net sales | customer			0
Net Sales [Member] | Geographic Concentration Risk [Member]
Significant Accounting Policies [Line Items]
Concentration risk, percentage		10.00%
Net Sales [Member] | Concentration Risk On Two Customers [Member]
Significant Accounting Policies [Line Items]
Number of customers accounted for significant percentage of net sales | customer	2
Net sales	$ 284,000,000
Net Sales [Member] | Concentration Risk On One Customer [Member]
Significant Accounting Policies [Line Items]
Number of customers accounted for significant percentage of net sales | customer		1
Net sales		$ 131,700,000
Net Sales [Member] | Minimum [Member] | Geographic Concentration Risk [Member]
Significant Accounting Policies [Line Items]
Concentration risk, percentage			10.00%
Americas [Member]
Significant Accounting Policies [Line Items]
Net sales	$ 837,300,000	$ 805,100,000	$ 798,300,000
Americas [Member] | Net Sales [Member]
Significant Accounting Policies [Line Items]
Number of customers accounted for significant percentage of net sales | customer	2
Americas [Member] | Net Sales [Member] | Geographic Concentration Risk [Member]
Significant Accounting Policies [Line Items]
Concentration risk, percentage	10.00%

Nature of Operations (Narrative

Nature of Operations (Narrative) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2016USD ($)Segment	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Segment Reporting Information [Line Items]
Selling, general and administrative expenses	$ 225.2	$ 267.7	$ 250.1
Corporate Unallocated Expenses Recorded Within Other Americas Segment [Member]
Segment Reporting Information [Line Items]
Selling, general and administrative expenses	$ 85
WAVE [Member]
Segment Reporting Information [Line Items]
Equity interest percentage	50.00%
Geographical Segments [Member]
Segment Reporting Information [Line Items]
Number of reportable segments | Segment	3

Nature of Operations (Schedule

Nature of Operations (Schedule of Net Sales to External Customers) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Net sales		$ 1,234.5	$ 1,231.3	$ 1,294.3
Equity (earnings) from joint venture		(73.1)	(66.1)	(65.1)
Segment operating income (loss)		184.6	140.5	198.1
Segment assets		1,758	1,812.9	1,755.4
Depreciation and amortization	[1]	77.8	79.2	76.8
Asset impairment	[1]			0.4
Investment in joint venture		106.2	130.8	129
Purchases of property, plant and equipment	[1]	92.1	109.1	139.5
Americas [Member]
Segment Reporting Information [Line Items]
Net sales		837.3	805.1	798.3
Equity (earnings) from joint venture		(70.2)	(63.5)	(61.6)
Segment operating income (loss)		232.1	283.5	272.1
Segment assets		1,186.7	1,137.3	1,127.4
Depreciation and amortization	[1]	52.9	43.2	44.7
Investment in joint venture		106.2	130.8	129
Purchases of property, plant and equipment	[1]	66.4	52.2	42.5
EMEA [Member]
Segment Reporting Information [Line Items]
Net sales		263.1	289.9	353.4
Equity (earnings) from joint venture		(2.2)	(2.3)	(3.4)
Segment operating income (loss)		(8.2)	(11.9)	(5.4)
Segment assets		275.5	283.2	296.6
Depreciation and amortization	[1]	16.7	15.6	12.9
Purchases of property, plant and equipment	[1]	19.1	30.5	75.2
Pacific Rim [Member]
Segment Reporting Information [Line Items]
Net sales		134.1	136.3	142.6
Equity (earnings) from joint venture		(0.7)	(0.3)	(0.1)
Segment operating income (loss)		(0.5)	(6.8)	(2)
Segment assets		145	154.4	166.3
Depreciation and amortization	[1]	8.1	8.8	8.4
Asset impairment	[1]			0.4
Purchases of property, plant and equipment	[1]	6.6	4	10.4
Unallocated Corporate [Member]
Segment Reporting Information [Line Items]
Segment operating income (loss)		(38.8)	(124.3)	(66.6)
Segment assets		150.8	238	165.1
Depreciation and amortization	[1]	$ 0.1	11.6	10.8
Purchases of property, plant and equipment	[1]		$ 22.4	$ 11.4
[1]	Totals for 2016, 2015 and 2014 will differ from the totals on our Consolidated Statement of Cash Flow by the amounts that have been classified as discontinued operations.

Nature of Operations (Reconcili

Nature of Operations (Reconciliation Of Total Consolidated Operating Income To Earnings Before Income Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Segment operating income (loss)	$ 184.6	$ 140.5	$ 198.1
Interest expense	49.8	45.3	46
Other non-operating expense	0.1	20.1	5.9
Other non-operating (income)	(9.6)	(5)	(2.2)
Earnings from continuing operations before income taxes	$ 144.3	$ 80.1	$ 148.4

Nature of Operations (Schedul67

Nature of Operations (Schedule Of Sales Allocated To Geographic Area) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenues From External Customers And Long Lived Assets [Line Items]
Net sales	$ 1,234.5	$ 1,231.3	$ 1,294.3
Americas [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Net sales	837.3	805.1	798.3
EMEA [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Net sales	263.1	289.9	353.4
Pacific Rim [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Net sales	134.1	136.3	142.6
United States [Member] | Americas [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Net sales	775.9	745.9	726
Canada [Member] | Americas [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Net sales	61.4	59.2	72.3
United Kingdom [Member] | EMEA [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Net sales	87.9	112	113.8
France [Member] | EMEA [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Net sales	54	54.9	69.7
Netherlands [Member] | EMEA [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Net sales	43.3	42.1	53.3
Russia [Member] | EMEA [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Net sales	40.2	37.4	62
Other [Member] | EMEA [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Net sales	37.7	43.5	54.6
Other [Member] | Pacific Rim [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Net sales	19.9	21.1	19.8
China [Member] | Pacific Rim [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Net sales	38.7	39.1	47.6
India [Member] | Pacific Rim [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Net sales	40	43.7	39.6
Australia [Member] | Pacific Rim [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Net sales	$ 35.5	$ 32.4	$ 35.6

Nature of Operations (Schedul68

Nature of Operations (Schedule Of Property, Plant And Equipment Allocated To Geographic Area) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Revenues From External Customers And Long Lived Assets [Line Items]
Property, plant and equipment, net	$ 669.6	$ 648.1
Americas [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Property, plant and equipment, net	461.6	432.8
EMEA [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Property, plant and equipment, net	148.1	145.1
Pacific Rim [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Property, plant and equipment, net	59.9	70.2
United States [Member] | Americas [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Property, plant and equipment, net	426.7	403.8
Canada [Member] | Americas [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Property, plant and equipment, net	34.8	28.9
Other [Member] | Americas [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Property, plant and equipment, net	0.1	0.1
Other [Member] | EMEA [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Property, plant and equipment, net	1.2	1.3
Other [Member] | Pacific Rim [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Property, plant and equipment, net	1.4	1.1
Russia [Member] | EMEA [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Property, plant and equipment, net	54.6	48.3
Germany [Member] | EMEA [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Property, plant and equipment, net	25.5	28.5
France [Member] | EMEA [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Property, plant and equipment, net	31.4	27.6
United Kingdom [Member] | EMEA [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Property, plant and equipment, net	18	21.8
Austria [Member] | EMEA [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Property, plant and equipment, net	17.4	17.6
China [Member] | Pacific Rim [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Property, plant and equipment, net	$ 58.5	$ 69.1

Nature of Operations (Reconci69

Nature of Operations (Reconciliation of Unallocated Corporate Segment Operating Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Corporate expenses	$ (225.2)	$ (267.7)	$ (250.1)
Separation costs	(34.5)	(34.3)
Segment operating income (loss)	184.6	140.5	198.1
Unallocated Corporate Segment [Member]
Segment Reporting Information [Line Items]
Corporate expenses	(4.3)	(90)	(66.6)
Separation costs	(34.5)	(34.3)
Segment operating income (loss)	$ (38.8)	$ (124.3)	$ (66.6)

Discontinued Operations (Narrat

Discontinued Operations (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Apr. 01, 2016	Dec. 04, 2014
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Initial term of campus lease agreement period		5 years
Accumulated other comprehensive losses, net of tax		$ (403.8)	$ (487.4)
Pension liabilities, including an unfunded pension liability		86.3	62.1
Income tax (benefit)		(15.2)	(41.8)	$ (2.5)
U.S. Defined Benefit Pension Plan [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Defined benefit plan, liability transferred		365.2
U.S. Postretirement Benefit Plan [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Defined benefit plan, liability transferred		86.3
AFI [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Dividends received					$ 50
Income tax (benefit)		0.1	17.8	$ 13.9
AFI [Member] | Transferring To AFI [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Defined benefit plan, liability transferred		365.2
Defined benefit plan, net liability transferred		3
Defined benefit plan, plan assets transferred		362.2
Accumulated other comprehensive losses, net of tax					$ 60
Reduction in additional paid-in capital		656.1
AFI [Member] | Transferring To AFI [Member] | U.S. Defined Benefit Pension Plan [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Defined benefit plan, liability transferred		3
AFI [Member] | Transferring To AFI [Member] | U.S. Postretirement Benefit Plan [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Defined benefit plan, liability transferred		86.3
DLW [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Pension liabilities, including an unfunded pension liability	$ 115
Income tax (benefit)	$ (43.4)
Contingent liability						$ 12.9
Assets removed from balance sheet						151.9
Liabilities removed from balance sheet						$ 164.8
DLW [Member] | Accounts Payable and Accrued Expenses [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Contingent liability		$ 11.9	$ 12.1

Discontinued Operations (Summar

Discontinued Operations (Summary of Results of Operations Related to AFI) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Income tax expense	$ (15.2)	$ (41.8)	$ (2.5)
(Loss) earnings from discontinued operations	15.3	41.6	(14.5)
AFI [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Net sales	284.4	1,188.7	1,221
Cost of goods sold	237.2	962.3	1,020.8
Gross profit	47.2	226.4	200.2
Selling, general and administrative expenses	50.5	179.5	148.4
Intangible asset impairments			10.8
Operating (loss) income	(3.3)	46.9	41
Other non-operating expense, net	1.1	3.1	4.2
(Loss) earnings from discontinued operations before income tax	(4.4)	43.8	36.8
Income tax expense	0.1	17.8	13.9
(Loss) earnings from discontinued operations	$ (4.5)	$ 26	$ 22.9

Discontinued Operations (Summ72

Discontinued Operations (Summary of Carrying Amount of Major Classes of Assets and Liabilities Related to AFI) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Current assets:
Total current assets discontinued operations		$ 381.2
Total non-current assets of discontinued operations		493.1
Total assets	$ 1,758	2,687.2
Current liabilities:
Total current liabilities		149.3
Total non-current liabilities of discontinued operations		154.3
AFI [Member]
Current assets:
Cash and cash equivalents		35.5
Accounts and notes receivable, net		70
Inventories, net		242.8
Deferred income taxes		5.7
Other current assets		27.2
Total current assets discontinued operations		381.2
Property, plant, and equipment, less accumulated depreciation and amortization		448.2
Intangible assets, net		42.5
Deferred income taxes		1.5
Other non-current assets		0.9
Total non-current assets of discontinued operations		493.1
Total assets		874.3
Current liabilities:
Accounts payable and accrued expenses		149.3
Total current liabilities		149.3
Long-term debt, less current installments		10
Postretirement benefit liabilities		85.2
Pension benefit liabilities		45.5
Other long-term liabilities		6.3
Deferred income taxes		7.3
Total non-current liabilities of discontinued operations		154.3
Total liabilities of discontinued operations		$ 303.6

Discontinued Operations (Summ73

Discontinued Operations (Summary of Total Depreciation and Amortization, Fixed and Intangible Asset Impairments, and Capital Expenditures Related to AFI) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Discontinued Operations [Abstract]
Depreciation and amortization	$ 11.4	$ 39.1	$ 46.6
Fixed and intangible asset impairments			15.4
Purchases of property, plant and equipment	$ (12.1)	$ (61.6)	$ (77.6)

Discontinued Operations (Summ74

Discontinued Operations (Summary of Results of Discontinued Operations) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
(Loss) from discontinued operations before income tax		$ 0.1	$ (0.2)	$ (17)
Net gain (loss) from discontinued operations		10.8	67.6	(15.3)
Loss on disposal of discontinued business, tax (benefit)		(15.2)	(41.8)	(2.5)
(Loss) earnings from discontinued operations		15.3	41.6	(14.5)
DLW [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
(Loss) from discontinued operations before income tax				(23.7)
Net gain (loss) from discontinued operations				(23.7)
Loss on disposal of discontinued business, tax (benefit)	$ (43.4)
DLW and AFI [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Gain (loss) on disposal of discontinued business before income tax		0.1	(0.8)	(13.5)
Loss on disposal of discontinued business, tax (benefit)		(15.2)	(42)	(1.2)
(Loss) earnings from discontinued operations		$ 15.3	41.2	(12.3)
AIP [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Gain (loss) on disposal of discontinued business before income tax			0.6	(3.5)
Loss on disposal of discontinued business, tax (benefit)			0.2	(1.3)
(Loss) earnings from discontinued operations			$ 0.4	$ (2.2)

Accounts and Notes Receivable75

Accounts and Notes Receivable (Schedule of Accounts and Notes Receivable) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Receivables [Abstract]
Customer receivables	$ 106.9	$ 114
Customer notes	1.5	0.7
Miscellaneous receivables	6	6.4
Less allowance for warranties, discounts, and losses	(6.1)	(6.8)
Accounts and notes receivable, net	$ 108.3	$ 114.3

Inventories (Schedule of Invent

Inventories (Schedule of Inventories) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Inventory Disclosure [Abstract]
Finished goods	$ 80.5	$ 72
Goods in process	3.3	4.2
Raw materials and supplies	32.4	32
Less LIFO and other reserves	(7.2)	(6.8)
Total inventories, net	$ 109	$ 101.4

Inventories (Narrative) (Detail

Inventories (Narrative) (Details)	Dec. 31, 2016	Dec. 31, 2015
Inventory Disclosure [Abstract]
Percent of inventory valued on a LIFO basis	38.00%	36.00%

Inventories (Summary Of Invento

Inventories (Summary Of Inventory Not Accounted For Under LIFO) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
FIFO inventory	$ 68	$ 64.5
International Locations [Member]
Segment Reporting Information [Line Items]
FIFO inventory	63.8	59
U.S. Sourced Products [Member]
Segment Reporting Information [Line Items]
FIFO inventory	$ 4.2	$ 5.5

Other Current Assets (Schedule

Other Current Assets (Schedule of Other Current Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]
Prepaid expenses	$ 15	$ 20.4
Fair value of derivative assets	2.4	3.4
Certificates of deposit	0.4	7.6
Other	3	2.3
Total other current assets	$ 20.8	$ 33.7

Property, Plant And Equipment80

Property, Plant And Equipment (Schedule Of Property, Plant And Equipment) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Property Plant And Equipment [Abstract]
Land	$ 38	$ 38.3
Buildings	261.2	250.4
Machinery and equipment	706.4	669.7
Computer software	18.7	16.8
Construction in progress	90.8	76.7
Less accumulated depreciation and amortization	(445.5)	(403.8)
Net property, plant and equipment	$ 669.6	$ 648.1

Equity Investments (Narrative)

Equity Investments (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Schedule of Equity Method Investments [Line Items]
Distributions from equity interest	$ 86.9	$ 64.2	$ 67.9
Equity method investment, sales reported on consolidated financial statements	$ 98.1	97.4	109.4
Customer Relationships [Member]
Schedule of Equity Method Investments [Line Items]
Amortizing intangible assets, Estimated Useful Life	20 years
Developed Technology [Member]
Schedule of Equity Method Investments [Line Items]
Amortizing intangible assets, Estimated Useful Life	15 years
WAVE [Member]
Schedule of Equity Method Investments [Line Items]
Equity interest percentage	50.00%
Distributions from equity interest	$ 86.9	64.2	$ 67.9
Equity method investment, difference between carrying amount and underlying equity	$ 166.6	$ 172.1
WAVE [Member] | Customer Relationships [Member]
Schedule of Equity Method Investments [Line Items]
Amortizing intangible assets, Estimated Useful Life	20 years
WAVE [Member] | Developed Technology [Member]
Schedule of Equity Method Investments [Line Items]
Amortizing intangible assets, Estimated Useful Life	15 years
WAVE [Member] | Trademarks [Member]
Schedule of Equity Method Investments [Line Items]
Non-amortizing intangible assets, estimated useful life	indefinite

Equity Investments (Summary Of

Equity Investments (Summary Of The Difference Between Carrying Amount And Underlying Equity OF Equity Method Investment) (Details) - WAVE [Member] - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Schedule of Equity Method Investments [Line Items]
Total of fair value adjustments to assets	$ 166.6	$ 172.1
Property, Plant and Equipment [Member]
Schedule of Equity Method Investments [Line Items]
Total of fair value adjustments to assets	0.4	0.4
Other Intangibles [Member]
Schedule of Equity Method Investments [Line Items]
Total of fair value adjustments to assets	135.8	141.3
Goodwill [Member]
Schedule of Equity Method Investments [Line Items]
Total of fair value adjustments to assets	$ 30.4	$ 30.4

Equity Investments (Summary O83

Equity Investments (Summary Of Investment In Joint Venture, Balance Sheet Data) (Details) - WAVE [Member] - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Schedule of Equity Method Investments [Line Items]
Current assets	$ 113.1	$ 118.7
Noncurrent assets	50.3	52.1
Current liabilities	40.7	23.3
Other noncurrent liabilities	$ 244.6	$ 248.9

Equity Investments (Summary o84

Equity Investments (Summary of Investment in Joint Venture, Income Statement Data) (Details) - WAVE [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Schedule of Equity Method Investments [Line Items]
Net sales	$ 393.7	$ 374.4	$ 392.5
Gross profit	208.7	187.4	185.1
Net earnings	$ 158.9	$ 144.4	$ 142.2

Intangible Assets (Narrative) (

Intangible Assets (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Intangible asset impairment	$ 0	$ 0	$ 0
Amortization expense	14,000,000	$ 14,200,000	$ 14,000,000
2017 Through 2021 [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 14,000,000

Intangible Assets (Schedule of

Intangible Assets (Schedule of Intangible Assets) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Schedule Of Intangible Assets [Line Items]
Amortizing intangible assets, Gross Carrying Amount	$ 261.3	$ 262.4
Amortizing intangible assets, Accumulated Amortization	142.3	128.5
Total intangible assets	$ 575.7	575.7
Trademarks And Brand Names [Member]
Schedule Of Intangible Assets [Line Items]
Non-amortizing intangible assets, Estimated Useful Life	Indefinite
Non-amortizing intangible assets, Gross Carrying Amount	$ 314.4	313.3
Customer Relationships [Member]
Schedule Of Intangible Assets [Line Items]
Amortizing intangible assets, Estimated Useful Life	20 years
Amortizing intangible assets, Gross Carrying Amount	$ 165.3	165.4
Amortizing intangible assets, Accumulated Amortization	$ 84.9	76.7
Developed Technology [Member]
Schedule Of Intangible Assets [Line Items]
Amortizing intangible assets, Estimated Useful Life	15 years
Amortizing intangible assets, Gross Carrying Amount	$ 82.8	82.2
Amortizing intangible assets, Accumulated Amortization	$ 55.4	49.9
Other [Member]
Schedule Of Intangible Assets [Line Items]
Amortizing intangible assets, Estimated Useful Life	Various
Amortizing intangible assets, Gross Carrying Amount	$ 13.2	14.8
Amortizing intangible assets, Accumulated Amortization	$ 2	$ 1.9

Intangible Assets (Schedule o87

Intangible Assets (Schedule of Amortization Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Goodwill And Intangible Assets Disclosure [Abstract]
Amortization expense	$ 14	$ 14.2	$ 14

Other Non-Current Assets (Detai

Other Non-Current Assets (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Other Assets Noncurrent Disclosure [Abstract]
Cash surrender value of company-owned life insurance policies	$ 52.7	$ 51.6
Fair value of derivative assets	7.6
Other	4.6	5.4
Total other non-current assets	$ 64.9	$ 57

Accounts Payable And Accrued 89

Accounts Payable And Accrued Expenses (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Payables And Accruals [Abstract]
Payables, trade and other	$ 108.6	$ 127.5
Employment costs	33.7	44.7
Current portion of pension and postretirement benefit liabilities	12.7	14.3
Contingent liability related to discontinued operations	11.9	12.1
Other	30.2	32.5
Total accounts payable and accrued expenses	$ 197.1	$ 231.1

Severance and Related Costs (Na

Severance and Related Costs (Narrative) (Details) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2015USD ($)	Dec. 31, 2016USD ($)employee	Dec. 31, 2015USD ($)employee
China [Member]
Severance and Related Costs [Line Items]
Number of position eliminations expected | employee		190
China [Member] | Cost Of Goods Sold [Member]
Severance and Related Costs [Line Items]
Severance and related costs	$ 2	$ 3.9
China [Member] | Selling, General and Administrative (SG&A) Expense [Member]
Severance and Related Costs [Line Items]
Severance and related costs	$ 0.9	0.8
Europe [Member]
Severance and Related Costs [Line Items]
Positions eliminated | employee			30
Europe [Member] | Selling, General and Administrative (SG&A) Expense [Member]
Severance and Related Costs [Line Items]
Severance and related costs			$ 2.2
Unallocated Corporate Segment [Member]
Severance and Related Costs [Line Items]
Severance and related costs		$ 2.4	$ 5.3
Positions eliminated | employee		30

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Taxes [Line Items]
Valuation allowances	$ 60.5	$ 69.1
Estimated future taxable income to realize foreign tax credits	$ 63.1
Estimated future taxable income to realize foreign tax credits, expiration year	2,022
Unremitted earnings not taxed	$ 275.9
Unrecognized tax benefits	86.9	150.6	$ 142.6	$ 145.2
UTB if recognized, would impact the reported effective tax rate	63.1
UTB if recognized, would impact the reported effective tax rate, net of federal benefit	61.6
Interest and penalty exposure reported as accrued income tax	$ 4
Minimum [Member]
Income Taxes [Line Items]
Number of open tax years subject to audit	3 years
Maximum [Member]
Income Taxes [Line Items]
Number of open tax years subject to audit	6 years
State [Member]
Income Taxes [Line Items]
Operating loss carryforwards	$ 760.6	863.1
Valuation allowances	16.5
Valuation allowance, increase (decrease)	2.7
Estimated future taxable income to utilize deferred tax assets	772.7
UTB decrease due to uncertain tax positions	$ 0.1
State [Member] | Minimum [Member]
Income Taxes [Line Items]
Operating loss carryforwards, expiration date	2,017
State [Member] | Maximum [Member]
Income Taxes [Line Items]
Operating loss carryforwards, expiration date	2,036
Foreign [Member]
Income Taxes [Line Items]
Operating loss carryforwards	$ 149	202.9
Operating loss carryforwards, finite	60.6
Operating loss carryforwards, indefinite	88.4
Valuation allowances	43.2
Valuation allowance, increase (decrease)	$ (12.1)
Foreign [Member] | Minimum [Member]
Income Taxes [Line Items]
Operating loss carryforwards, expiration date	2,017
Foreign [Member] | Maximum [Member]
Income Taxes [Line Items]
Operating loss carryforwards, expiration date	2,034
Federal [Member]
Income Taxes [Line Items]
Tax credit carryforward gross	$ 22.1	27.1
Tax credit carryforward netted with unrecognized tax benefits	19.3	$ 12.3
Valuation allowances	0.8
Estimated future taxable income to realize foreign tax credits	52.9
UTB increase due to uncertain tax positions	$ 3.7
Federal [Member] | Minimum [Member]
Income Taxes [Line Items]
Tax credit carryforward, expiration year	2,017
Federal [Member] | Maximum [Member]
Income Taxes [Line Items]
Tax credit carryforward, expiration year	2,022

Income Taxes (Schedule Of Defer

Income Taxes (Schedule Of Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Net operating losses	$ 71.9	$ 83.7
Postretirement benefits	38.1	45.4
Pension benefit liabilities	45.2	74
Deferred compensation	17.8	24.2
Foreign exchange unrealized	1.3	18.8
Foreign tax credit carryforwards	19.3	12.3
State tax credit carryforwards	9.1	9.7
Other	16.9	30.4
Total deferred income tax assets	219.6	298.5
Valuation allowances	(60.5)	(69.1)
Net deferred income tax assets	159.1	229.4
Intangibles	(211.8)	(214.3)
Accumulated depreciation	(51.7)	(52.5)
Prepaid pension costs	(18.8)
Inventories	(8.8)	(7.5)
Other	(9.1)	(13.1)
Total deferred income tax liabilities	(300.2)	(287.4)
Net deferred income tax liabilities	(141.1)	(58)
Deferred income taxes have been classified in the Consolidated Balance Sheet as:
Deferred income tax assets - current		29.8
Deferred income tax assets - noncurrent	15.4	19.5
Deferred income tax liabilities - current		(0.6)
Deferred income tax liabilities - noncurrent	(156.5)	(106.7)
Net deferred income tax liabilities	$ (141.1)	$ (58)

Income Taxes (Schedule Of Incom

Income Taxes (Schedule Of Income Tax Expense (Benefit)) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Earnings (loss) before income taxes, Domestic	$ 144.9	$ 143	$ 187.7
Earnings (loss) before income taxes, Foreign	(18.3)	(38.2)	(39.3)
Earnings (loss) before income taxes, Eliminations of dividends from foreign subsidiaries	17.7	(24.7)
Earnings from continuing operations before income taxes	144.3	80.1	148.4
Current income tax expense (benefit), Federal	2.5	25.1	26.6
Current income tax expense (benefit), Foreign	11.7	5.6	8.1
Current income tax expense (benefit), State	(0.5)	0.2	1.4
Current income tax expense (benefit), Total	13.7	30.9	36.1
Deferred income tax expense (benefit), Federal	22.5	12.7	21
Deferred income tax expense (benefit), Foreign	(2.2)	(0.5)	0.1
Deferred income tax expense (benefit), State	16.4	10.4	12.1
Deferred income tax expense (benefit), Total	36.7	22.6	33.2
Income tax expense (benefit)	$ 50.4	$ 53.5	$ 69.3

Income Taxes (Schedule Of The R

Income Taxes (Schedule Of The Reconciliation To U.S. Statutory Tax Rate) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Continuing operations tax at statutory rate	$ 50.5	$ 28	$ 51.9
Increase in valuation allowances on deferred foreign income tax assets	16.2	19.3	18.7
State income tax expense, net of federal benefit	3.8	4.7	4.8
Separation costs	15.1	2.9
Permanent book/tax differences	(2.6)	3	(1.5)
Increase in valuation allowances on deferred domestic income tax assets	0.8	4.1	3
Domestic production activities	(3.1)	(5.1)	(5.8)
Tax on foreign and foreign-source income	(3.4)		(0.7)
Federal statute closure	(15.2)
Benefit from write-off of historical tax basis of foreign subsidiary	(13.7)
Other	2	(3.4)	(1.1)
Income tax expense (benefit)	$ 50.4	$ 53.5	$ 69.3

Income Taxes (Schedule Of Unrec

Income Taxes (Schedule Of Unrecognized Tax Benefits) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Unrecognized tax benefits balance at January 1,	$ 150.6	$ 142.6	$ 145.2
Gross change for current year positions	2.3	10.4	10.5
Increases for prior period positions	0.2	1.9	2.9
Decrease for prior period positions	(12.8)	(4.1)	(14.1)
Decrease due to settlements and payments			(1.2)
Decrease due to statute expirations	(53.4)	(0.2)	(0.7)
Unrecognized tax benefits balance at December 31,	$ 86.9	$ 150.6	$ 142.6

Income Taxes (Schedule Of Other

Income Taxes (Schedule Of Other Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Payroll taxes	$ 26.5	$ 27.4	$ 30.6
Property, franchise and capital stock taxes	$ 6.2	$ 6.4	$ 6.4

Debt (Schedule Of Debt) (Detail

Debt (Schedule Of Debt) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Principal debt outstanding	$ 883.1	$ 993
Unamortized debt financing costs	(9.5)	(4.7)
Less current portion and short-term debt	25	52.1
Long-term debt, less current installments	$ 848.6	$ 936.2
Principal debt outstanding, Weighted average year- end interest rate	3.54%	3.28%
Term Loan A Due 2021 [Member]
Debt Instrument [Line Items]
Principal debt outstanding	$ 600	$ 496
Principal debt outstanding, Weighted average year- end interest rate	3.29%	3.24%
Term Loan B Due 2023 [Member]
Debt Instrument [Line Items]
Principal debt outstanding	$ 248.1	$ 461.9
Principal debt outstanding, Weighted average year- end interest rate	4.58%	3.50%
Tax Exempt Bonds Due 2041 [Member]
Debt Instrument [Line Items]
Principal debt outstanding	$ 35	$ 35.1
Principal debt outstanding, Weighted average year- end interest rate	0.45%	0.87%
Current Portion And Short-Term Debt [Member]
Debt Instrument [Line Items]
Less current portion and short-term debt	$ 25	$ 52.1
Current portion and short-term debt, Weighted average year-end interest rate	3.42%	3.26%
Long-term Debt [Member]
Debt Instrument [Line Items]
Long-term debt	$ 873.6	$ 988.3
Long-term debt, Weighted average year- end interest rate	3.54%	3.28%
Long-Term Debt, Less Current Portion [Member]
Debt Instrument [Line Items]
Long-term debt, less current installments	$ 848.6	$ 936.2
Principal debt outstanding, Weighted average year- end interest rate	3.54%	3.28%

Debt (Narrative) (Details)

Debt (Narrative) (Details) - USD ($)	Feb. 27, 2017	Mar. 31, 2016	Mar. 31, 2016	Dec. 31, 2016	Apr. 30, 2016	Apr. 01, 2016	Dec. 31, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity				$ 207,400,000
New credit facility amount				55,500,000
Maximum unrestricted cash and cash equivalents for leverage ratio calculation				$ 100,000,000
Required prepayment amount, percent of consolidated excess cash flow				50.00%
Long-term debt outstanding				$ 883,100,000			$ 993,000,000
Letters of credits issued classified as restricted cash							0	$ 0
ARC [Member]
Debt Instrument [Line Items]
Amount outstanding				$ 0
Minimum [Member]
Debt Instrument [Line Items]
Credit facility covenant leverage ratio multiple for required prepayment				3.50%
Term Loan A [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity				$ 600,000,000
Interest rate spread			2.50%	2.00%
Maturity date			Mar. 1, 2018
Long-term debt outstanding				$ 600,000,000			496,000,000
Term Loan A [Member] | Extended Maturity [Member]
Debt Instrument [Line Items]
Maturity date				Apr. 1, 2021
Term Loan B [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity				$ 250,000,000
Interest rate spread			2.50%	3.25%
Floor interest rate			1.00%	0.75%
Maturity date			Nov. 1, 2020
Long-term debt outstanding				$ 248,100,000			461,900,000
Term Loan B [Member] | LIBOR
Debt Instrument [Line Items]
Interest rate spread				3.25%
Term Loan B [Member] | Subsequent Event [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	$ 248,100,000
Bank, legal and other fees	$ 600,000
Term Loan B [Member] | Subsequent Event [Member] | LIBOR
Debt Instrument [Line Items]
Interest rate spread	2.75%
Term Loan B [Member] | Extended Maturity [Member]
Debt Instrument [Line Items]
Maturity date				Apr. 1, 2023
Bi-lateral Facility [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity				$ 25,000,000
New credit facility amount				19,200,000
Bi-lateral Facility [Member] | Letters of Credit [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity					$ 25,000,000
Tax Exempt Bonds Due 2041 [Member]
Debt Instrument [Line Items]
Long-term debt outstanding				35,000,000			35,100,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity				200,000,000
Letter of credit maximum sublimit				$ 150,000,000
Interest rate spread			2.50%	2.00%
Maturity date			Mar. 1, 2018
Revolving Credit Facility [Member] | Extended Maturity [Member]
Debt Instrument [Line Items]
Maturity date				Apr. 1, 2021
International Subsidiary Letters Of Credit [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity				$ 4,100,000
Amount outstanding				0
Amended Securitization Facility [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity							$ 100,000,000
New credit facility amount		$ 40,000,000	$ 40,000,000
Amended Securitization Facility [Member] | Extended Maturity [Member]
Debt Instrument [Line Items]
Maturity date		Mar. 1, 2019
Securitization Facility [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity				32,200,000
New credit facility amount				36,200,000
Amount outstanding				$ 0
Securitization Facility [Member] | ARC [Member]
Debt Instrument [Line Items]
Ownership interest				100.00%
Securitization Facility [Member] | Letters of Credit [Member]
Debt Instrument [Line Items]
Letters of credits issued classified as restricted cash				$ 4,000,000
AFI [Member]
Debt Instrument [Line Items]
Cash dividend from AFI planned to reduce total debt outstanding						$ 50,000,000
Senior Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity		$ 1,275,000,000	$ 1,275,000,000
New credit facility amount				1,050,000,000
April 2016 Refinancing [Member]
Debt Instrument [Line Items]
Bank, legal and other fees				9,300,000
Unamortized debt financing costs written off				1,100,000
April 2016 Refinancing [Member] | Long-term Debt [Member]
Debt Instrument [Line Items]
Fees capitalized and amortized into interest expense				$ 8,100,000

Debt (Scheduled Payments Of Lon

Debt (Scheduled Payments Of Long-Term Debt) (Details) $ in Millions	Dec. 31, 2016USD ($)
Debt Disclosure [Abstract]
2,017	$ 25
2,018	32.5
2,019	55
2,020	62.5
2,021	437.5
2022 and later	$ 270.6

Debt (Schedule Of Letters Of Cr

Debt (Schedule Of Letters Of Credit) (Details)	Dec. 31, 2016USD ($)
Debt Instrument [Line Items]
Letters of credit, Limit	$ 207,400,000
Letters of credit, Used	55,500,000
Letters of credit, Available	151,900,000
Bi-lateral Facility [Member]
Debt Instrument [Line Items]
Letters of credit, Limit	25,000,000
Letters of credit, Used	19,200,000
Letters of credit, Available	5,800,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Letter of credit maximum sublimit	150,000,000
Letters of credit, Limit	200,000,000
Letters of credit, Available	150,000,000
Accounts Receivable Securitization Facility [Member]
Debt Instrument [Line Items]
Letters of credit, Limit	32,200,000
Letters of credit, Used	36,200,000
Letters of credit, Available	(4,000,000)
Foreign Line Of Credit [Member]
Debt Instrument [Line Items]
Letters of credit, Limit	200,000
Letters of credit, Used	100,000
Letters of credit, Available	$ 100,000

Pension And Other Benefit Pr101

Pension And Other Benefit Programs (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Long-term return forecast	6.75%	7.00%
Accumulated benefit obligation	$ 1,518	$ 1,896.8
Amortization of unrecognized net actuarial gains (losses) in 2017	(18.1)
Estimated future employer contributions in 2017	$ 3.9
Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Long-term return forecast	4.20%	4.50%
Accumulated benefit obligation	$ 211.7	$ 226.1
Settlement charges excluded from net periodic pension costs		0.5
Estimated future employer contributions in 2017	2.7
Amortization of unrecognized net actuarial losses in 2017	$ 1.3
U.S. Defined-Benefit Retiree Health And Life Insurance Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Average rate of annual increase in the per capita costs, pre-65	7.20%
Ultimate rate	4.50%
Amortization of unrecognized net actuarial gains (losses) in 2017	$ 3.6
Estimated future employer contributions in 2017	$ 8.4
Minimum [Member] | Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Assumed rate of return forecast period	10 years
Minimum [Member] | U.S. Defined-Benefit Retiree Health And Life Insurance Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Average rate of annual increase in the per capita costs, post-65	8.50%
Maximum [Member] | Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Assumed rate of return forecast period	30 years
Maximum [Member] | U.S. Defined-Benefit Retiree Health And Life Insurance Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Average rate of annual increase in the per capita costs, post-65	9.30%
U.S. and Non-U.S. Plans [Member] | Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Employee contributions, vested percentage	100.00%
Costs for worldwide defined contribution benefit plans	$ 10.2	$ 9.2	$ 10.4

Pension And Other Benefit Pr102

Pension And Other Benefit Programs (Schedule Of Net Funded Status) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation as of beginning of period	$ 1,918.1	$ 2,069.9
Service cost	10.1	16.3	$ 14.4
Interest cost	69.8	80.9	85.7
Actuarial loss (gain)	0.6	(130.5)
Benefits paid	(111)	(118.5)
Separation of AFI	(365.2)
Benefit obligation as of end of period	1,522.4	1,918.1	2,069.9
Fair value of plan assets as of beginning of period	1,837.2	1,986.3
Actual return on plan assets	144.7	(34.2)
Employer contribution	4.2	3.6
Separation of AFI	(362.2)
Fair value of plan assets as of end of period	1,512.9	1,837.2	1,986.3
Funded status of the plans	(9.5)	(80.9)
Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation as of beginning of period	234	261.4
Service cost	2.2	2.4	2.5
Interest cost	6.9	8.3	10.5
Plan participants' contributions	0.1	0.1
Settlements and curtailments	0.2
Foreign currency translation adjustment	(35.6)	(16.5)
Actuarial loss (gain)	37.1	(6.7)
Benefits paid	(9.4)	(15)
Separation of AFI	(20.5)
Benefit obligation as of end of period	215	234	261.4
Fair value of plan assets as of beginning of period	210.9	232.4
Actual return on plan assets	40.8	3.3
Employer contribution	2.9	3.4
Foreign currency translation adjustment	(35.3)	(13.3)
Separation of AFI	(19.6)
Fair value of plan assets as of end of period	190.4	210.9	232.4
Funded status of the plans	(24.6)	(23.1)
U.S. Defined-Benefit Retiree Health And Life Insurance Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation as of beginning of period	190.3	221.4
Service cost	0.4	0.9	0.9
Interest cost	4.7	8.1	10.9
Plan participants' contributions	3.2	4.6
Actuarial loss (gain)	(7.7)	(22.7)
Benefits paid	(11.5)	(22)
Separation of AFI	(86.3)
Benefit obligation as of end of period	93.1	190.3	221.4
Fair value of plan assets as of beginning of period	0	0
Employer contribution	8.3	17.4
Fair value of plan assets as of end of period	0	0	$ 0
Funded status of the plans	$ (93.1)	$ (190.3)

Pension And Other Benefit Pr103

Pension And Other Benefit Programs (Schedule Of Assumptions Used) (Details)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation discount rate	4.12%	4.40%
Benefit obligation rate of compensation increase	3.10%	3.10%
Net periodic benefit cost discount rate	4.40%	4.05%
Net periodic benefit cost expected return on plan assets	6.75%	7.00%
Net periodic benefit cost rate of compensation increase	3.10%	3.10%
Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation discount rate	2.40%	3.40%
Benefit obligation rate of compensation increase	3.10%	2.60%
Net periodic benefit cost discount rate	3.10%	3.40%
Net periodic benefit cost expected return on plan assets	4.20%	4.50%
Net periodic benefit cost rate of compensation increase	2.60%	2.60%
U.S. Defined-Benefit Retiree Health And Life Insurance Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation discount rate	4.10%	4.25%
Net periodic benefit cost discount rate	4.17%	3.90%

Pension And Other Benefit Pr104

Pension And Other Benefit Programs (Schedule Of Benefit Obligations In Excess Of Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation, December 31	$ 58.2	$ 1,918.1
Accumulated benefit obligation, December 31	58.1	1,896.8
Fair value of plan assets, December 31		1,837.2
Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation, December 31	40.9	58.3
Accumulated benefit obligation, December 31	39.4	52.7
Fair value of plan assets, December 31	$ 8.3	$ 26.8

Pension And Other Benefit Pr105

Pension And Other Benefit Programs (Schedule Of Periodic Benefit Costs (Credits)) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost of benefits earned during the period	$ 10.1	$ 16.3	$ 14.4
Interest cost on projected benefit obligation	69.8	80.9	85.7
Expected return on plan assets	(110.6)	(140.3)	(139.3)
Amortization of prior service (credit) cost	1.6	1.9	1.9
Recognized net actuarial loss	48.3	72.8	42.4
Net periodic pension cost	19.2	31.6	5.1
Less: Discontinued operations	2.2	11	1.2
Net periodic pension cost, continuing operations	17	20.6	3.9
Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost of benefits earned during the period	2.2	2.4	2.5
Interest cost on projected benefit obligation	6.9	8.3	10.5
Expected return on plan assets	(7.8)	(9)	(11.5)
Recognized net actuarial loss	1.2	2.8	2.1
Net periodic pension cost	2.5	4.5	3.6
Less: Discontinued operations		(0.2)	(0.1)
Net periodic pension cost, continuing operations	2.5	4.7	3.7
U.S. Defined-Benefit Retiree Health And Life Insurance Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost of benefits earned during the period	0.4	0.9	0.9
Interest cost on projected benefit obligation	4.7	8.1	10.9
Amortization of prior service (credit) cost	(0.3)	(0.6)	(0.6)
Amortization of net actuarial gain	(6.1)	(7.8)	(4.2)
Net periodic pension cost	(1.3)	0.6	7
Less: Discontinued operations	(0.2)	0.8	3.7
Net periodic pension cost, continuing operations	$ (1.1)	$ (0.2)	$ 3.3

Pension And Other Benefit Pr106

Pension And Other Benefit Programs (Schedule Of Defined Asset Allocation) (Details)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Long Duration Bonds [Member] | U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Weight	59.00%
Position	55.00%	59.00%
Long Duration Bonds [Member] | Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Weight	50.00%
Position	49.00%	46.00%
Equities [Member] | U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Weight	30.00%
Position	26.00%	26.00%
Equities [Member] | Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Weight	43.00%
Position	38.00%	42.00%
High Yield Bonds And Real Assets [Member] | U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Weight	6.00%
Position	7.00%	8.00%
Real Estate And Private Equity [Member] | U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Weight	4.00%
Position	5.00%	5.00%
Real Estate And Private Equity [Member] | Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Weight	7.00%
Position	7.00%	7.00%
Other [Member] | U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Weight	1.00%
Position	7.00%	2.00%
Other [Member] | Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Position	6.00%	5.00%

Pension And Other Benefit Pr107

Pension And Other Benefit Programs (Summary Of Fair Value Of Assets Plan) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	$ 1,436.1	$ 1,754.7
Investments measured at net asset value	76.8	82.5
Net assets	1,512.9	1,837.2	$ 1,986.3
U.S. Pension Plans [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	363.2	455.8
U.S. Pension Plans [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	1,070.1	1,296
U.S. Pension Plans [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	2.8	2.9
U.S. Pension Plans [Member] | Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	831.7	1,069.9
U.S. Pension Plans [Member] | Bonds [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	831.7	1,069.9
U.S. Pension Plans [Member] | Equities [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	389.1	507
U.S. Pension Plans [Member] | Equities [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	329	443
U.S. Pension Plans [Member] | Equities [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	60.1	64
U.S. Pension Plans [Member] | High Yield Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	67.6	82
U.S. Pension Plans [Member] | High Yield Bonds [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	67.6	82
U.S. Pension Plans [Member] | Real Assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	32.5	32.1
U.S. Pension Plans [Member] | Real Assets [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	32.5	32.1
U.S. Pension Plans [Member] | Real Estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments measured at net asset value	73.3	79.7
U.S. Pension Plans [Member] | Other Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	2.8	2.9
Investments measured at net asset value	3.5	2.8
U.S. Pension Plans [Member] | Other Investments [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	2.8	2.9
U.S. Pension Plans [Member] | Cash And Other Short Term Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	112.4	60.8
U.S. Pension Plans [Member] | Cash And Other Short Term Investments [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	34.2	12.8
U.S. Pension Plans [Member] | Cash And Other Short Term Investments [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	78.2	48
Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	178.3	196.1
Investments measured at net asset value	12.1	14.8
Net assets	190.4	210.9	$ 232.4
Non-U.S. Pension Plans [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	8	5.7
Non-U.S. Pension Plans [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	165.7	185.5
Non-U.S. Pension Plans [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	4.6	4.9
Non-U.S. Pension Plans [Member] | Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	93.9	97
Non-U.S. Pension Plans [Member] | Bonds [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	1	1.1
Non-U.S. Pension Plans [Member] | Bonds [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	92.9	95.9
Non-U.S. Pension Plans [Member] | Equities [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	72.5	89.1
Non-U.S. Pension Plans [Member] | Equities [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	1	1.1
Non-U.S. Pension Plans [Member] | Equities [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	71.5	88
Non-U.S. Pension Plans [Member] | Real Estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	0.8	0.8
Investments measured at net asset value	12.1	14.8
Non-U.S. Pension Plans [Member] | Real Estate [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	0.1	0.1
Non-U.S. Pension Plans [Member] | Real Estate [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	0.7	0.7
Non-U.S. Pension Plans [Member] | Other Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	5.2	5.8
Non-U.S. Pension Plans [Member] | Other Investments [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	0.6	0.9
Non-U.S. Pension Plans [Member] | Other Investments [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	4.6	4.9
Non-U.S. Pension Plans [Member] | Cash And Other Short Term Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	5.9	3.4
Non-U.S. Pension Plans [Member] | Cash And Other Short Term Investments [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Net assets measured at fair value	$ 5.9	$ 3.4

Pension And Other Benefit Pr108

Pension And Other Benefit Programs (Summary Of Assets Measured At NAV) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
U.S. Pension Plans [Member]
Fair Value Investments Entities That Calculate Net Asset Value Per Share [Line Items]
Investments measured at net asset value	$ 76.8	$ 82.5
Unfunded commitments	3.1	3.8
Non-U.S. Pension Plans [Member]
Fair Value Investments Entities That Calculate Net Asset Value Per Share [Line Items]
Investments measured at net asset value	$ 12.1	$ 14.8
Real Estate [Member]
Fair Value Investments Entities That Calculate Net Asset Value Per Share [Line Items]
Redemption frequency	Monthly/Quarterly
Real Estate [Member] | Minimum [Member]
Fair Value Investments Entities That Calculate Net Asset Value Per Share [Line Items]
Redemption notice period	2 days	2 days
Real Estate [Member] | Maximum [Member]
Fair Value Investments Entities That Calculate Net Asset Value Per Share [Line Items]
Redemption notice period	90 days	90 days
Real Estate [Member] | U.S. Pension Plans [Member]
Fair Value Investments Entities That Calculate Net Asset Value Per Share [Line Items]
Investments measured at net asset value	$ 73.3	$ 79.7
Unfunded commitments	2.2	2.3
Real Estate [Member] | Non-U.S. Pension Plans [Member]
Fair Value Investments Entities That Calculate Net Asset Value Per Share [Line Items]
Investments measured at net asset value	$ 12.1	14.8
Other Investments [Member]
Fair Value Investments Entities That Calculate Net Asset Value Per Share [Line Items]
Redemption frequency	None
Redemption notice period	None
Other Investments [Member] | U.S. Pension Plans [Member]
Fair Value Investments Entities That Calculate Net Asset Value Per Share [Line Items]
Investments measured at net asset value	$ 3.5	2.8
Unfunded commitments	$ 0.9	$ 1.5

Pension And Other Benefit Pr109

Pension And Other Benefit Programs (Schedule Of Effect Of One-Percentage-Point Change In Assumed Health Care Cost Trend Rates) (Details) - U.S. Defined-Benefit Retiree Health And Life Insurance Plans [Member] $ in Millions	12 Months Ended
	Dec. 31, 2016USD ($)
Defined Benefit Plan Disclosure [Line Items]
Effect on total service and interest cost components, Increase	$ (0.1)
Effect on postretirement benefit obligation, Increase	(0.8)
Effect on postretirement benefit obligation, Decrease	$ 0.5

Pension And Other Benefit Pr110

Pension And Other Benefit Programs (Schedule Of Amounts Recognized In Assets And Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Prepaid pension costs	$ 48.7
Accounts payable and accrued expenses	(3.9)	$ (4)
Pension benefit liabilities	(54.3)	(31.4)
Net amount recognized	(9.5)	(35.4)
Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Prepaid pension costs	7.9	8.3
Accounts payable and accrued expenses	(0.5)	(0.7)
Pension benefit liabilities	(32)	(30.7)
Net amount recognized	(24.6)	(23.1)
U.S. Defined-Benefit Retiree Health And Life Insurance Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Accounts payable and accrued expenses	(8.3)	(9.6)
Postretirement benefit liabilities	(84.8)	(87.2)
Net amount recognized	$ (93.1)	$ (96.8)

Pension And Other Benefit Pr111

Pension And Other Benefit Programs (Schedule Of Amounts In Accumulated Other Comprehensive) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net actuarial (loss) gain	$ (553.5)	$ (775.6)
Prior service (cost) credit	(1.5)	(3.9)
Accumulated other comprehensive (loss) income	(555)	(779.5)
Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net actuarial (loss) gain	(22.4)	(26.6)
Prior service (cost) credit	(0.6)	(0.6)
Accumulated other comprehensive (loss) income	(23)	(27.2)
U.S. Defined-Benefit Retiree Health And Life Insurance Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net actuarial (loss) gain	51.7	91.5
Prior service (cost) credit	0.1	0.6
Accumulated other comprehensive (loss) income	$ 51.8	$ 92.1

Pension And Other Benefit Pr112

Pension And Other Benefit Programs (Schedule Of Expected Benefit Payments) (Details) $ in Millions	Dec. 31, 2016USD ($)
U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
2,017	$ 109.6
2,018	108.7
2,019	108.3
2,020	106.8
2,021	105.8
2022 - 2026	508.8
Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
2,017	6.5
2,018	6.7
2,019	7.3
2,020	7.7
2,021	8.1
2022 - 2026	44
U.S. Defined-Benefit Retiree Health And Life Insurance Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
2,017	8.4
2,018	8.2
2,019	7.8
2,020	7.4
2,021	7
2022 - 2026	$ 31.3

Financial Instruments (Estimate

Financial Instruments (Estimated Fair Value of Financial Instruments) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total debt, including current portion	$ (873.6)	$ (988.3)
Estimated Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total debt, including current portion	(873.7)	(989.4)
Foreign Currency Contracts [Member] | Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets/(liabilities), net	1.6	3.3
Foreign Currency Contracts [Member] | Estimated Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets/(liabilities), net	1.6	3.3
Natural Gas Contracts [Member] | Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets/(liabilities), net	1	(0.8)
Natural Gas Contracts [Member] | Estimated Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets/(liabilities), net	1	(0.8)
Interest Rate Swap Contracts [Member] | Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets/(liabilities), net	6.9	(10.6)
Interest Rate Swap Contracts [Member] | Estimated Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets/(liabilities), net	$ 6.9	$ (10.6)

Financial Instruments (Fair Val

Financial Instruments (Fair Value Measurement of Assets and Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Foreign Currency Contracts [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets/(liabilities), net	$ 1.6	$ 3.3
Natural Gas Contracts [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets/(liabilities), net	1	(0.8)
Interest Rate Swap Contracts [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets/(liabilities), net	$ 6.9	$ (10.6)

Derivative Financial Instrum115

Derivative Financial Instruments (Narrative) (Details) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Nov. 30, 2016	Apr. 01, 2016
Derivative [Line Items]
Intercompany loans outstanding	$ 0	$ 0
Interest expense		49,800,000	$ 45,300,000	$ 46,000,000
Gain reclassified from AOCI into income		(7,900,000)	400,000	2,300,000
Gain in AOCI expected to be recognized in earnings over the next twelve months		3,200,000
Not Designated As Hedging Instrument [Member]
Derivative [Line Items]
Gain (loss) recognized in income for derivative instruments		$ 0	0	29,600,000
Term Loan B [Member]
Derivative [Line Items]
Notional amount						$ 100,000,000
Term A Swap [Member]
Derivative [Line Items]
Notional amount			250,000,000
Trade date		Apr. 16, 2013
Maturity date		Mar. 31, 2018
Term Loan A Swaps [Member]
Derivative [Line Items]
Notional amount					$ 450,000,000	200,000,000
Maturity date		Mar. 31, 2021
Term Loan A Swaps [Member] | Interest Expense [Member]
Derivative [Line Items]
Gain reclassified from AOCI into income	2,400,000
Commodity Price Risk [Member]
Derivative [Line Items]
Maximum length of time hedged in cash flow hedge		24 months
Notional amount	7,400,000	$ 7,400,000	9,200,000
Gain (loss) recognized on hedge ineffective portion		$ 0	0	0
Foreign Exchange Contracts, Sales and Purchases [Member]
Derivative [Line Items]
Maximum length of time hedged in cash flow hedge		15 months
Notional amount	34,600,000	$ 34,600,000	38,400,000
Foreign Exchange Contracts, Intercompany Loans and Dividends [Member]
Derivative [Line Items]
Notional amount	0	0	6,100,000
Gain (loss) recognized in income for derivative instruments				30,000,000
Interest Rate Swap Contracts [Member]
Derivative [Line Items]
Gain (loss) recognized on hedge ineffective portion			0	$ 0
Interest Rate Swap Contracts [Member] | Interest Expense [Member]
Derivative [Line Items]
Gain reclassified from AOCI into income		(8,300,000)	$ (800,000)
Interest Rate Swap Contracts [Member] | Term Loan B Swaps Settled [Member]
Derivative [Line Items]
Notional amount						$ 450,000,000
Interest Rate Swap Contracts [Member] | Term Loan B [Member] | Minimum [Member]
Derivative [Line Items]
LIBOR floor						0.75%
Interest Rate Swap Contracts [Member] | Term Loan B [Member] | Reclassification From Accumulated Other Comprehensive Income [Member]
Derivative [Line Items]
Interest expense		10,700,000
Interest Rate Swap Contracts [Member] | Term Loan A Swaps [Member]
Derivative [Line Items]
Notional amount	$ 450,000,000	$ 450,000,000

Derivative Financial Instrum116

Derivative Financial Instruments (Summary of Interest Rate Swaps) (Details)	12 Months Ended
	Dec. 31, 2016USD ($)
November 2016 to March 2018 [Member]
Derivative [Line Items]
Trade Date	Nov. 13, 2016
Notional Amount	$ 250,000,000
Coverage Period	November 2016 to March 2018
Risk Coverage	Term Loan A
November 2016 to March 2021 [Member]
Derivative [Line Items]
Trade Date	Nov. 13, 2016
Notional Amount	$ 200,000,000
Coverage Period	November 2016 to March 2021
Risk Coverage	Term Loan A
April 2016 to March 2023 [Member]
Derivative [Line Items]
Trade Date	Apr. 1, 2016
Notional Amount	$ 100,000,000
Coverage Period	April 2016 to March 2023
Risk Coverage	Term Loan B

Derivative Financial Instrum117

Derivative Financial Instruments (Summary of Fair Value of Derivative Instruments on Consolidated Balance Sheet) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Derivatives, Fair Value [Line Items]
Derivative Assets, Fair Value	$ 10	$ 3.4
Derivative Liabilities, Fair Value	0.5	11.5
Other Current Assets [Member] | Natural Gas Commodity Contracts [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets, Fair Value	1
Other Current Assets [Member] | Foreign Exchange Contracts [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets, Fair Value	1.4	3.4
Other Non-Current Assets [Member] | Foreign Exchange Contracts [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets, Fair Value	0.2
Other Non-Current Assets [Member] | Interest Rate Swap Contracts [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets, Fair Value	7.4
Accounts Payable And Accrued Expenses [Member] | Natural Gas Commodity Contracts [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities, Fair Value		0.8
Accounts Payable And Accrued Expenses [Member] | Foreign Exchange Contracts [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities, Fair Value		0.1
Other Long-Term Liabilities [Member] | Interest Rate Swap Contracts [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities, Fair Value	$ 0.5	$ 10.6

Derivative Financial Instrum118

Derivative Financial Instruments (Summary of Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income (“AOCI”) (Effective Portion)	$ 4.5	$ 1.5	$ (6.5)
Gain (Loss) Reclassified from AOCI into Income (Effective Portion)	(7.9)	0.4	2.3
Natural Gas Commodity Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income (“AOCI”) (Effective Portion)	0.6	(2.3)	(2.9)
Natural Gas Commodity Contracts [Member] | Cost Of Goods Sold [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Reclassified from AOCI into Income (Effective Portion)	(1.2)	(4.4)	0.7
Foreign Exchange Contracts - Purchases [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income (“AOCI”) (Effective Portion)		1.2	1.1
Foreign Exchange Contracts - Purchases [Member] | Cost Of Goods Sold [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Reclassified from AOCI into Income (Effective Portion)	0.2	1.8	(0.2)
Foreign Exchange Contracts - Sales [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income (“AOCI”) (Effective Portion)	(2.9)	4.7	4.6
Foreign Exchange Contracts - Sales [Member] | Net Sales [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Reclassified from AOCI into Income (Effective Portion)	1.4	3.8	1.8
Interest Rate Swap Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income (“AOCI”) (Effective Portion)	6.8	(2.1)	$ (9.3)
Interest Rate Swap Contracts [Member] | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Reclassified from AOCI into Income (Effective Portion)	$ (8.3)	$ (0.8)

Product Warranties (Summary of

Product Warranties (Summary of Activity for the Accrual of Product Warranties) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Product Warranties Disclosures [Abstract]
Balance at beginning of period	$ 0.4	$ 0.2
Current year warranty accruals	8.6	2
Reductions for payments	(8.4)	(1.8)
Balance at end of period	$ 0.6	$ 0.4

Other Long-Term Liabilities (Sc

Other Long-Term Liabilities (Schedule of Other Long-Term Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Other Liabilities Disclosure [Abstract]
Long-term deferred compensation arrangements	$ 16.3	$ 18.7
Long-term portion of derivative liabilities	0.5	10.6
Environmental liabilities	4.7	6
Other	7.6	8
Total other long-term liabilities	$ 29.1	$ 43.3

Share-Based Compensation Pla121

Share-Based Compensation Plans (Narrative) (Details) - USD ($)	Jul. 08, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Apr. 04, 2016	Apr. 01, 2016	Jun. 24, 2011
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average closing stock price per share used to determine awards held upon separation						$ 48.10
Weighted average opening stock price per share used to determine awards held upon separation					$ 42.11
Options granted		0	0
Number of shares outstanding		1,350,600	1,410,300
Adjusted share-based compensation cost		$ 12,100,000	$ 10,900,000	$ 10,300,000
Share-based compensation cost, net of tax		7,900,000	$ 7,200,000	$ 6,900,000
Total unrecognized compensation cost		$ 12,300,000
Total unrecognized compensation cost, weighted-average period		1 year 9 months 18 days
Employee Stock Option [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Incremental compensation expense		$ 0
RSUs [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Incremental compensation expense		$ 0
Number of shares accounted for liability awards		224,500	413,300
Number of shares granted		114,300
RSUs Liability Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares accounted for liability awards		9,581	17,545
PSUs Liability Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares accounted for liability awards		720	6,537
Performance Stock Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Incremental compensation expense		$ 0
Number of shares granted		158,790
2011 LTIP [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares authorized							6,949,000
2016 LTIP [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares authorized	8,949,000
Number of additional shares authorized	2,000,000
Shares available for grant		2,845,479
2016 LTIP [Member] | Employee Stock Option [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period		3 years
Award expiration period		10 years
2008 Director Stock Unit Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares authorized	300,000
2016 Director Stock Unit Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares authorized	550,000
Number of additional shares authorized	250,000
Shares available for grant		258,793
Number of shares outstanding		189,237	197,475
2016 Director Stock Unit Plan [Member] | RSUs [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period		1 year
Number of shares granted		25,714	22,997
Award payable period		6 months
Vested director stock units		163,523	174,478
2006 Phantom Stock Unit Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares available for grant		0
Vested phantom shares		23,546
Award payable period		6 months
Total liability recorded for shares		$ 1,800,000
2006 Phantom Stock Unit Plan [Member] | Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period		1 year
2006 Phantom Stock Unit Plan [Member] | Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period		3 years

Share-Based Compensation Pla122

Share-Based Compensation Plans (Schedule Of Changes In Stock Options) (Details) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2016USD ($)$ / sharesshares
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Option shares outstanding, December 31, 2015, Number of shares | shares	1,410,300
Option shares exercised, Number of shares | shares	(25,600)
Options forfeited, Number of shares | shares	(23,500)
Net impact as a result of AFI separation, Number of shares | shares	(10,600)
Option shares outstanding, December 31, 2016, Number of shares | shares	1,350,600
Option shares exercisable, December 31, 2016, Number of shares | shares	1,276,700
Option shares vested and expected to vest, December 31, 2016, Number of shares | shares	1,350,300
Option shares outstanding, December 31, 2015, Weighted-average exercise price | $ / shares	$ 40.66
Option shares exercised, Weighted-average exercise price | $ / shares	(26.26)
Options forfeited, Weighted-average exercise price | $ / shares	(45.68)
Net impact as a result of AFI separation, Weighted-average exercise price | $ / shares	(44.21)
Option shares outstanding, December 31, 2016, Weighted-average exercise price | $ / shares	34.66
Option shares exercisable, December 31, 2016, Weighted-average exercise price | $ / shares	33.94
Option shares vested and expected to vest, December 31, 2016, Weighted-average exercise price | $ / shares	$ 34.66
Option shares outstanding, December 31, 2016, Weighted-average remaining contractual term	4 years 6 months
Option shares exercisable, December 31, 2016, Weighted-average remaining contractual term	4 years 6 months
Option shares vested and expected to vest, December 31, 2016, Weighted-average remaining contractual term	4 years 6 months
Option shares outstanding, December 31, 2016, Aggregate intrinsic value | $	$ 11.6
Option shares exercisable, December 31, 2016, Aggregate intrinsic value | $	11.6
Option shares vested and expected to vest, December 31, 2016, Aggregate intrinsic value | $	$ 11.6

Share-Based Compensation Pla123

Share-Based Compensation Plans (Schedule Of Stock Option Exercises) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Total intrinsic value of stock options exercised	$ 0.4	$ 3.5	$ 17.1
Proceeds from exercised stock options	0.7	6.4	17.8
Tax (expense) deduction realized from stock options exercised	$ (0.1)	$ 0.4	$ 2.7

Share-Based Compensation Pla124

Share-Based Compensation Plans (Schedule Of Weighted-Average Historical Pre-Modification Assumptions) (Details)	12 Months Ended
	Dec. 31, 2014$ / shares
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Weighted-average grant date fair value of options granted	$ 24.93
Risk free rate of return	1.90%
Expected volatility	46.50%
Expected term	6 years
Expected dividend yield	0.00%

Share-Based Compensation Pla125

Share-Based Compensation Plans (Schedule Of Restricted Stock, RSUs, Performance Restricted Stock and PSUs Activity) (Details)	12 Months Ended
	Dec. 31, 2016$ / sharesshares
RSUs [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Beginning balance, Number of shares | shares	413,300
Granted, Number of shares | shares	114,300
Vested, Number of shares | shares	(171,500)
Forfeited, Number of shares | shares	(57,000)
Net impact as a result of AFI separation, Number of shares | shares	(74,600)
Ending balance, Number of shares | shares	224,500
Beginning balance, Weighted-average fair value at grant date | $ / shares	$ 54.66
Granted, Weighted-average fair value at grant date | $ / shares	41.53
Vested, Weighted-average fair value at grant date | $ / shares	(52.83)
Forfeited, Weighted-average fair value at grant date | $ / shares	(48.31)
Net impact as a result of AFI separation, Weighted-average fair value at grant date | $ / shares	(40.32)
Ending balance, Weighted-average fair value at grant date | $ / shares	$ 44.94
PSUs [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Beginning balance, Number of shares | shares	216,900
Granted, Number of shares | shares	254,400
Vested, Number of shares | shares	(61,600)
Forfeited, Number of shares | shares	(110,500)
Net impact as a result of AFI separation, Number of shares | shares	(8,800)
Ending balance, Number of shares | shares	290,400
Beginning balance, Weighted-average fair value at grant date | $ / shares	$ 52.84
Granted, Weighted-average fair value at grant date | $ / shares	39.23
Vested, Weighted-average fair value at grant date | $ / shares	(51.79)
Forfeited, Weighted-average fair value at grant date | $ / shares	(52.12)
Net impact as a result of AFI separation, Weighted-average fair value at grant date | $ / shares	(45.74)
Ending balance, Weighted-average fair value at grant date | $ / shares	$ 40.29

Share-Based Compensation Pla126

Share-Based Compensation Plans (Schedule Of Weighted-Average Assumptions For PSUs Measured At Fair Value) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2014
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average grant date fair value of market based PSUs granted		$ 24.93
Risk free rate of return		1.90%
Expected volatility		46.50%
Expected term		6 years
Expected dividend yield		0.00%
PSUs [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average grant date fair value of market based PSUs granted	$ 37.75
Risk free rate of return	0.80%
Expected volatility	28.00%
Expected term	2 years 8 months 12 days
Expected dividend yield	0.00%

Employee Costs (Schedule Of Emp

Employee Costs (Schedule Of Employee Compensation) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Compensation Related Costs [Abstract]
Wages, salaries and incentive compensation	$ 265.6	$ 267.9	$ 279.3
Payroll taxes	26.5	27.4	30.6
Defined contribution and defined benefit pension plan expense, net	29.7	34.5	18
Insurance and other benefit costs	24.9	20.6	21.9
Share-based compensation	12.1	10.9	10.3
Total	$ 358.8	$ 361.3	$ 360.1

Leases (Schedule Of Rent Expens

Leases (Schedule Of Rent Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Leases [Abstract]
Rent expense	$ 16.6	$ 17	$ 16.2
Sublease (income)	(0.3)	(0.4)	(0.4)
Net rent expense	$ 16.3	$ 16.6	$ 15.8

Leases (Schedule Of Future Mini

Leases (Schedule Of Future Minimum Payments) (Details) $ in Millions	Dec. 31, 2016USD ($)
Leases [Abstract]
Total minimum lease payments, 2017	$ 7.4
Total minimum lease payments, 2018	6
Total minimum lease payments, 2019	4.6
Total minimum lease payments, 2020	3.2
Total minimum lease payments, 2021	2.4
Total minimum lease payments, Thereafter	2.4
Total minimum lease payments, Total	26
Sublease (Income), 2017	(0.1)
Sublease (Income), 2018	(0.1)
Sublease (Income), 2019	(0.1)
Sublease (Income), 2020	(0.1)
Sublease (Income), Total	(0.4)
Net minimum lease payments, 2017	7.3
Net minimum lease payments, 2018	5.9
Net minimum lease payments, 2019	4.5
Net minimum lease payments, 2020	3.1
Net minimum lease payments, 2021	2.4
Net minimum lease payments, Thereafter	2.4
Net minimum lease payments, Total	$ 25.6

Shareholders' Equity (Narrative

Shareholders' Equity (Narrative) (Details) - USD ($)	Jul. 29, 2016	Dec. 31, 2016
Equity Class Of Treasury Stock [Line Items]
Shares repurchase program, repurchased cost		$ 43,800,000
Common Stock [Member]
Equity Class Of Treasury Stock [Line Items]
Shares repurchase program, expiration date	Jul. 31, 2018
Shares repurchase program, shares repurchased		1,111,525
Shares repurchase program, repurchased cost		$ 43,800,000
Shares repurchase program, average price per share		$ 39.45
Common Stock [Member] | Maximum [Member]
Equity Class Of Treasury Stock [Line Items]
Shares repurchase program, authorized amount	$ 150,000,000

Shareholders' Equity (Component

Shareholders' Equity (Components Of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Stockholders Equity Note [Abstract]
Foreign currency translation adjustments	$ (71.6)	$ (33.8)
Derivative gain (loss), net	3.8	(3.3)
Pension and postretirement adjustments	(336)	(450.3)
Accumulated other comprehensive (loss)	$ (403.8)	$ (487.4)

Shareholders' Equity (Schedule

Shareholders' Equity (Schedule Of Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Stockholders Equity Note [Abstract]
Foreign currency translation adjustments, Pre-tax Amount	$ (33.2)	$ (25.5)	$ (29.6)
Derivative gain (loss), net, Pre-tax Amount	11.9	1.1	(4.9)
Pension and postretirement adjustments, Pre-tax Amount	75.7	50.7	(153.6)
Total other comprehensive income (loss), Pre-tax Amount	54.4	26.3	(188.1)
Derivative gain (loss), net, Tax Benefit	(4.4)	(0.4)	1.6
Pension and postretirement adjustments, Tax Benefit	(26.4)	(17.8)	62.6
Total other comprehensive (loss), Tax Benefit	(30.8)	(18.2)	64.2
Foreign currency translation adjustments, After-tax Amount	(33.2)	(25.5)	(29.6)
Derivative gain (loss), net, After-tax Amount	7.5	0.7	(3.3)
Pension and postretirement adjustments	49.3	32.9	(91)
Total other comprehensive income (loss)	$ 23.6	$ 8.1	$ (123.9)

Shareholders' Equity (Schedu133

Shareholders' Equity (Schedule Of Accumulated Other Comprehensive Income Activity) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning of year balance		$ 768.8	$ 649.1
Other comprehensive (loss) income before reclassifications, net of tax expense (benefit)	[1]	(10)	(34)
Amounts reclassified from accumulated other comprehensive income	[1]	33.6	42.1
Net current period other comprehensive (loss) income	[1]	23.6	8.1
End of year balance		266.4	768.8
AFI [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Separation of AFI, net of tax (benefit)	[1]	60
Foreign Currency Translation Adjustments [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning of year balance	[1]	(33.8)	(8.3)
Other comprehensive (loss) income before reclassifications, net of tax expense (benefit)	[1]	(33.2)	(25.5)
Net current period other comprehensive (loss) income	[1]	(33.2)	(25.5)
End of year balance	[1]	(71.6)	(33.8)
Foreign Currency Translation Adjustments [Member] | AFI [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Separation of AFI, net of tax (benefit)	[1]	(4.6)
Derivative Adjustments [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning of year balance	[1]	(3.3)	(4)
Other comprehensive (loss) income before reclassifications, net of tax expense (benefit)	[1]	3	3.5
Amounts reclassified from accumulated other comprehensive income	[1]	4.5	(2.8)
Net current period other comprehensive (loss) income	[1]	7.5	0.7
End of year balance	[1]	3.8	(3.3)
Derivative Adjustments [Member] | AFI [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Separation of AFI, net of tax (benefit)	[1]	(0.4)
Pension And Postretirement Adjustments [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning of year balance	[1]	(450.3)	(483.2)
Other comprehensive (loss) income before reclassifications, net of tax expense (benefit)	[1]	20.2	(12)
Amounts reclassified from accumulated other comprehensive income	[1]	29.1	44.9
Net current period other comprehensive (loss) income	[1]	49.3	32.9
End of year balance	[1]	(336)	(450.3)
Pension And Postretirement Adjustments [Member] | AFI [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Separation of AFI, net of tax (benefit)	[1]	65
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning of year balance		(487.4)	(495.5)
End of year balance		$ (403.8)	$ (487.4)
[1]	Amounts are net of tax

Shareholders' Equity (Schedu134

Shareholders' Equity (Schedule Of Accumulated Other Comprehensive Income Activity) (Parenthetical) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Accumulated Other Comprehensive Income Loss [Line Items]
Other comprehensive income before reclassifications, tax expense (benefit)	$ (12.8)	$ (4.6)
Derivative Adjustments [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Other comprehensive income before reclassifications, tax expense (benefit)	(1.8)	1.8
Pension And Postretirement Adjustments [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Other comprehensive income before reclassifications, tax expense (benefit)	(10.9)	$ (6.4)
AFI [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Separation of AFI, tax (benefit)	(39.2)
AFI [Member] | Pension And Postretirement Adjustments [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Separation of AFI, tax (benefit)	$ (39.2)

Shareholders' Equity (Reclassif

Shareholders' Equity (Reclassification out of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Cost of goods sold	$ 863.3	$ 854.9	$ 911.2
Net sales	1,234.5	1,231.3	1,294.3
Interest expense	49.8	45.3	46
Total income (loss) from continuing operations, before tax	144.3	80.1	148.4
Tax impact	(50.4)	(53.5)	(69.3)
Total (loss) from discontinued operations, net of tax	10.8	67.6	(15.3)
Total income (loss), net of tax	104.7	94.2	63.8
Selling, general and administrative expenses	225.2	267.7	250.1
Total expense from discontinued operations net of tax	(4.5)	26	$ (0.8)
Reclassification From Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Total reclassifications for the period	33.6	42.1
Derivative Adjustments [Member] | Reclassification From Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Total income (loss) from continuing operations, before tax	7.9	(0.4)
Tax impact	(2.8)	0.1
Total income (loss) from continuing operations, net of tax	5.1	(0.3)
Total (loss) from discontinued operations, net of tax	(0.6)	(2.5)
Total income (loss), net of tax	4.5	(2.8)
Derivative Adjustments [Member] | Natural Gas Contracts [Member] | Reclassification From Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Cost of goods sold	1.2	4.4
Derivative Adjustments [Member] | Foreign Exchange Contracts - Purchases [Member] | Reclassification From Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Cost of goods sold	(0.2)	(1.8)
Derivative Adjustments [Member] | Foreign Exchange Contracts - Sales [Member] | Reclassification From Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Net sales	(1.4)	(3.8)
Derivative Adjustments [Member] | Interest Rate Swap Contracts [Member] | Reclassification From Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Interest expense	8.3	0.8
Prior Service Cost Amortization [Member] | Reclassification From Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Cost of goods sold	0.6	0.2
Selling, general and administrative expenses	0.6	0.4
Amortization Of Net Actuarial Loss [Member] | Reclassification From Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Cost of goods sold	20.7	22.1
Selling, general and administrative expenses	18.4	21.3
Pension And Postretirement Adjustments [Member] | Reclassification From Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Total expense from continuing operations, before tax	40.3	44
Tax impact	(14.1)	(15.4)
Total expense from continuing operations, net of tax	26.2	28.6
Total expense from discontinued operations net of tax	2.9	16.3
Total expense, net of tax	$ 29.1	$ 44.9

Shareholders' Equity (Reclas136

Shareholders' Equity (Reclassification out of Accumulated Other Comprehensive Income) (Parenthetical) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Tax expense from discontinued operations	$ 0.1	$ 17.8	$ 13.9
Derivative Adjustments [Member] | Reclassified From Accumulated Other Comprehensive Loss [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Income tax expense	(0.3)	(1.3)
Pension And Postretirement Adjustments [Member] | Reclassified From Accumulated Other Comprehensive Loss [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Tax expense from discontinued operations	$ 1.5	$ 8.8

Supplemental Financial Infor137

Supplemental Financial Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Supplemental Financial Information [Abstract]
Maintenance and repair costs	$ 53	$ 53	$ 53.1
Research and development costs	18.8	19.7	19.8
Advertising costs	6.9	7.8	7.1
Foreign currency transaction loss, net of hedging activity		19.4	5.9
Other	0.1	0.7
Total	0.1	20.1	5.9
Interest income	2.6	1.9	2.1
Foreign currency transaction gain, net of hedging activity	6.7	3
Other	0.3	0.1	0.1
Total	$ 9.6	$ 5	$ 2.2

Related Parties (Details)

Related Parties (Details) - WAVE [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Related Party Transaction [Line Items]
Percentage of ownership in joint venture	50.00%
Purchases from joint venture	$ 76.2	$ 73.7	$ 85.4
Reimbursement from joint venture	15.7	15.2	$ 14.7
Due from related parties	$ 8.7	$ 5.4

Litigation and Related Matters

Litigation and Related Matters (Narrative) (Details) $ in Millions	1 Months Ended	12 Months Ended
	Sep. 30, 2010site	Dec. 31, 2016USD ($)Litigationsite	Dec. 31, 2007	Dec. 31, 2015USD ($)
Loss Contingencies [Line Items]
Number of active and independent litigation matters for which pursuing coverage and recoveries | Litigation		2
Potential environmental liabilities		$ 4.7		$ 6
Reserves for potential environmental liabilities		2.9
Recorded amount for probable recoveries		$ 0		$ 0
Macon Site [Member]
Loss Contingencies [Line Items]
Number of landfills listed as Superfund site | site		2
Number of landfills AWI entered into an Administrative Order on Consent for a Removal Action | site	1
Submission date of final report to EPA	Oct. 11, 2016
Elizabeth City [Member]
Loss Contingencies [Line Items]
Percentage of site costs Navy agreed to pay			33.33%

Earnings Per Share (Reconciliat

Earnings Per Share (Reconciliation of Net Earnings to Net Earnings Attributable to Common Shares Used in Basic and Diluted Calculation) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Earnings Per Share [Abstract]
Earnings from continuing operations	$ 93.9	$ 26.6	$ 79.1
Earnings allocated to participating non-vested share awards	(0.3)	(0.1)	(0.4)
Earnings from continuing operations attributable to common shares	$ 93.6	$ 26.5	$ 78.7

Earnings Per Share (Reconcil141

Earnings Per Share (Reconciliation of Basic Shares Outstanding to Diluted Shares Outstanding) (Details) - shares shares in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Earnings Per Share [Abstract]
Basic shares outstanding	55.4	55.5	55
Dilutive effect of common stock equivalents	0.3	0.4	0.4
Diluted shares outstanding	55.7	55.9	55.4

Earnings Per Share (Narrative)

Earnings Per Share (Narrative) (Details) - shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Earnings Per Share [Abstract]
Options to purchase common stock not included in the computation of diluted EPS	632,799	203,527	142,038

Subsequent Event - Acquisition

Subsequent Event - Acquisition (Narrative) (Details) - Subsequent Event [Member] - Tectum, Inc. [Member] $ in Millions	Jan. 13, 2017USD ($)Facility
Subsequent Event [Line Items]
Business acquisition cash paid	$ 31.4
Number of manufacturing facility | Facility	2
Revenues of acquired business	$ 25

Schedule II (Details)

Schedule II (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Provision For Bad Debts [Member]
Valuation And Qualifying Accounts Disclosure [Line Items]
Balance at beginning of year	$ 3.1	$ 3.5	$ 2.5
Additions charged to earnings	2.4	0.5	1.5
Deductions	(1.5)	(0.9)	(0.5)
Balance at end of year	4	3.1	3.5
Provision For Discounts [Member]
Valuation And Qualifying Accounts Disclosure [Line Items]
Balance at beginning of year	3.3	4.8	5.7
Additions charged to earnings	18.2	18.8	19.1
Deductions	(20)	(20.3)	(20)
Balance at end of year	1.5	3.3	4.8
Provision For Warranties [Member]
Valuation And Qualifying Accounts Disclosure [Line Items]
Balance at beginning of year	0.4	0.2	0.5
Additions charged to earnings	8.6	2	2.7
Deductions	(8.4)	(1.8)	(3)
Balance at end of year	0.6	0.4	0.2
Reserves For Inventory [Member]
Valuation And Qualifying Accounts Disclosure [Line Items]
Balance at beginning of year	2	1.3	1.2
Additions charged to earnings	0.2	1.4	0.9
Deductions	(0.8)	(0.7)	(0.8)
Balance at end of year	$ 1.4	$ 2	$ 1.3