Inventories - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	Apr. 04, 2015	Dec. 31, 2014
Inventory Disclosure [Abstract]
Raw materials and supplies in inventory, percentage	36.00%	40.00%
Finished and semi-finished products in inventory, percentage	64.00%	60.00%
Inventories valued using the last-in, first-out	45.00%us-gaap_PercentageOfLIFOInventory	43.00%us-gaap_PercentageOfLIFOInventory
Increased value of inventory if FIFO method had been used	$ 550.9us-gaap_InventoryLIFOReserve	$ 567.4us-gaap_InventoryLIFOReserve
Lower of cost or market adjustments	$ 8.3us-gaap_InventoryAdjustments	$ 2.7us-gaap_InventoryAdjustments

Finished and semi-finished products in inventory, percentage.

No definition available.

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- Definition

Raw material and supplies in inventory, percentage.

+ References

No definition available.

+ Details

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- Definition

Certain changes made in the current period to the value and amount of inventory reported.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.6(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 6

-Subparagraph b

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 330

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=28360613&loc=d3e4492-108314

+ Details

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- Details

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- Definition

Amount of difference between inventory at lower of LIFO cost or market and inventory at lower of other inventory accounting method cost or market, for example, but not limited to, FIFO or average cost.

+ References

+ Details

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- Definition

The percentage of LIFO (last in first out) inventory to total inventory as of the balance sheet date if other than 100 percent.

+ References

No definition available.

+ Details

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