Commitments and Contingencies - Additional Information (Detail) In Millions, except Share data, unless otherwise specified	0 Months Ended			1 Months Ended		12 Months Ended							0 Months Ended
	Jun. 13, 2014 USD ($)	Apr. 04, 2014	Feb. 03, 2014 USD ($)	Mar. 31, 2007	Feb. 28, 2002 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)		Dec. 31, 2012 USD ($)	Dec. 31, 2002 USD ($)	Jul. 03, 2014 EUR (€)	Sep. 19, 2008 Trust	May 25, 2010 Italian Ministry of Economic Development [Member] Italy [Member] EUR (€)	Feb. 03, 2014 WRG Asbestos PI Trust and WRG Asbestos PD Trust [Member] USD ($)	Jun. 13, 2014 WRG Asbestos PI Trust [Member] USD ($)	Feb. 03, 2014 WRG Asbestos PI Trust [Member]
Loss Contingencies [Line Items]
Cash payments under settlement agreement														$ 929.7
Original number of shares expected to be issued under settlement agreement, adjusted				18,000,000												18,000,000
Registration rights agreement dated			Feb. 03, 2014
Cash payment for settlements			555
Cash payment for settlements			260
Cash payment for settlements			115
Common stock repurchase value	130.0					481.4	327.6	[1]							130.0
Number of common stock shares repurchased	3,932,244					1,495,188									3,932,244
Common stock repurchase price per share	$ 33.06														$ 33.06
Date of shelf registration statement filed and became effective		Apr. 04, 2014
Net operating loss carry back, years						10 years
Anticipated tax refund						247
Original number of shares expect to be issued under settlement agreement										9,000,000
Charge covering a cash payment that will be required to make under settlement agreement upon the effectiveness of an appropriate plan of reorganization										513
Adjustment of company's common stock that is charged and expected to be issued under settlement agreement						To eighteen million shares upon the two-for-one stock split in March 2007
Percentage of annual interest that accrues on Settlement agreement charges from December 21, 2002 to the date of payment										5.50%
Stock split ratio				2
Establishment of asbestos trust under Section 524(g)												2
Charges accrued for potential liabilities					172
Repayment of grant monies													5
Loss contingency liability						13					10
Charges related to development grant matter						14
Principal contractual obligations including agreements to purchase an estimated amount of goods, including raw materials, or services						353.7
Net rental expense						$ 71	$ 79		$ 84

[1] Certain amounts have been revised to reflect the retrospective application of the Company’s change in inventory costing method for certain U.S. inventories to the FIFO method from the LIFO method. Refer to Note 2, “Summary of Significant Accounting Policies - Inventories,” of the notes to consolidated financial statements for further details surrounding this accounting policy change.