Debt - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended					12 Months Ended		0 Months Ended	2 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended			0 Months Ended	2 Months Ended	12 Months Ended				0 Months Ended	12 Months Ended				12 Months Ended		3 Months Ended		3 Months Ended	12 Months Ended		12 Months Ended	3 Months Ended		12 Months Ended		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Senior Notes Six Point Five Zero Percent Due November Fifteen Two Thousand Twenty Three	Nov. 12, 2013 Senior Notes Six Point Five Zero Percent Due November Fifteen Two Thousand Twenty Three	Dec. 31, 2013 Senior Notes Seven Point Zero Percent Due February Fifteen Two Thousand Twenty Two	Aug. 26, 2013 Senior Notes Seven Point Zero Percent Due February Fifteen Two Thousand Twenty Two	Mar. 14, 2013 Senior Notes Seven Point Two Five Percent Due May Fifteen Two Thousand Eighteen	Aug. 26, 2013 Senior Notes Seven Point Two Five Percent Due May Fifteen Two Thousand Eighteen	Dec. 31, 2013 Senior Notes Seven Point Two Five Percent Due May Fifteen Two Thousand Eighteen	Mar. 31, 2012 Senior Notes Five Point Five Zero Percent Due May Fifteen Two Thousand Fifteen	Dec. 31, 2013 Senior Notes Five Point Five Zero Percent Due May Fifteen Two Thousand Fifteen	Dec. 31, 2012 Senior Notes Five Point Five Zero Percent Due May Fifteen Two Thousand Fifteen	Mar. 13, 2012 Senior Notes Five Point Five Zero Percent Due May Fifteen Two Thousand Fifteen	Mar. 14, 2013 Senior Notes Six Point One Two Five Percent Due January Fifteen Two Thousand Seventeen	Aug. 26, 2013 Senior Notes Six Point One Two Five Percent Due January Fifteen Two Thousand Seventeen	Dec. 31, 2013 Senior Notes Six Point One Two Five Percent Due January Fifteen Two Thousand Seventeen	Dec. 31, 2013 Senior Notes Extinguished1	Dec. 31, 2013 Senior Notes Seven Point Eight Seven Five Percent Due March Fifteen Two Thousand Twenty One	Mar. 14, 2013 Senior Notes Seven Point Eight Seven Five Percent Due March Fifteen Two Thousand Twenty One	Mar. 14, 2013 Senior Notes Eight Point Six Zero Percent Due August Fifteen Two Thousand Sixteen	Dec. 31, 2013 Senior Notes Eight Point Six Zero Percent Due August Fifteen Two Thousand Sixteen	Dec. 31, 2013 Senior Notes Extinguished2	Dec. 31, 2013 New Credit Agreement	Dec. 31, 2012 New Credit Agreement	Dec. 31, 2013 Prior Credit Agreement	Dec. 31, 2012 Prior Credit Agreement	Mar. 31, 2012 Senior Notes Eight Point Two Five Percent Due March Fifteen Two Thousand Nineteen	Mar. 13, 2012 Senior Notes Eight Point Two Five Percent Due March Fifteen Two Thousand Nineteen	Mar. 31, 2012 Senior Notes Four Point Nine Five Percent Due April One Two Thousand Fourteen	Dec. 31, 2012 Senior Notes Four Point Nine Five Percent Due April One Two Thousand Fourteen	Apr. 09, 2010 Senior Notes Four Point Nine Five Percent Due April One Two Thousand Fourteen	Dec. 31, 2012 Senior Notes Four Point Nine Five Percent Due April One Two Thousand Fourteen And Five Point Five Zero Percent Due May Fifteen Two Thousand Fifteen	Mar. 31, 2012 Senior Notes Five Point Six Two Five Percent Due January Fifteen Two Thousand Twelve	Dec. 31, 2013 Revolving Credit Facility	Dec. 31, 2012 Previous Credit Agreement	Dec. 31, 2013 Previous Credit Agreement	Dec. 31, 2013 Credit Agreements	Dec. 31, 2013 Foreign Facilities	Dec. 31, 2013 Other Facilities	Dec. 31, 2013 Credit Agreements	Dec. 31, 2012 Credit Agreements
Debt Disclosure [Line Items]
Amount of difference between fair value and book value	$ 343.4	$ (3.7)
Credit facility borrowings	0	0																																							9.1	10.4
Total amount of revolving credit agreement																									1,150.0										1,150.0		1,750.0		176.0
Weighted average interest rate on borrowings																																				2.19%		2.00%
Debt instrument, face amount					350.0		400.0													450.0								450.0	450.0
Interest rate				6.50%		7.00%				7.25%			5.50%	5.50%			6.125%		7.875%			8.60%						8.25%	8.25%	4.95%		4.95%		5.625%
Maturity date				Nov. 15, 2023		Feb. 15, 2022				May 15, 2018	May 15, 2015		May 15, 2015				Jan. 15, 2017		Mar. 15, 2021			Aug. 15, 2016						Mar. 15, 2019		Apr. 01, 2014				Jan. 15, 2012
Repayment of Debt	830.4	625.2	495.1					50.0	200.0		100.0	100.0			173.5	100.0					130.2									341.8				158.6
Loss on debt extinguishment	(81.9)	(16.1)	(69.9)															(46.3)					(35.6)				(4.0)						(12.1)
Revolving credit agreement, expiration date																								Oct. 15, 2017		Dec. 17, 2013
Allowable annual dividend payment under credit agreement																																						200.0
Debt extinguishment - premiums paid, unamortized debt issuance costs and other expenses		(23.2)
Gain due to termination of related interest rate swaps																															11.1
Outstanding letters of credit, guarantees and factoring agreements	76.7																																					43.7		12.8
Interest paid	$ 245.0	$ 250.1	$ 252.2