Debt and Credit Facilities - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended						12 Months Ended			12 Months Ended			12 Months Ended				1 Months Ended	12 Months Ended	1 Months Ended			1 Months Ended	12 Months Ended		12 Months Ended	1 Months Ended	12 Months Ended	1 Months Ended	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2012 6.50% Senior Notes due December 2020 [Member]	Nov. 30, 2012 6.50% Senior Notes due December 2020 [Member]	Dec. 31, 2011 6.50% Senior Notes due December 2020 [Member]	Dec. 31, 2012 8.125% Senior Notes due September 2019 [Member]	Dec. 31, 2011 8.125% Senior Notes due September 2019 [Member]	Oct. 03, 2011 8.125% Senior Notes due September 2019 [Member]	Dec. 31, 2012 8.375% Senior Notes due September 2021 [Member]	Dec. 31, 2011 8.375% Senior Notes due September 2021 [Member]	Oct. 03, 2011 8.375% Senior Notes due September 2021 [Member]	Dec. 31, 2012 Term Loans A and B [Member]	Dec. 31, 2011 Term Loans A and B [Member]	Dec. 31, 2012 5.625 % Senior Notes due July 2013 [Member]	Dec. 31, 2011 5.625 % Senior Notes due July 2013 [Member]	Oct. 03, 2011 Term Loan B Facility due October 2018 [Member]	Dec. 31, 2012 Term Loan B Facility due October 2018 [Member]	Nov. 14, 2012 Multicurrency term A facility tranche [Member]	Nov. 14, 2012 Revolving credit facility [Member]	Oct. 03, 2011 Revolving credit facility [Member]	Nov. 14, 2012 Term Loan B Facility due October 2018 [Member]	Dec. 31, 2012 Term Loan B Facility due October 2018 [Member]	Dec. 31, 2011 Term Loan B Facility due October 2018 [Member]	Dec. 31, 2011 Dollar-denominated [Member] Term Loan B Facility due October 2018 [Member]	Nov. 14, 2012 Dollar-denominated [Member] Term Loan B Facility due October 2018 [Member]	Dec. 31, 2011 Euro-denominated [Member] Term Loan B Facility due October 2018 [Member]	Nov. 14, 2012 Euro-denominated [Member] Term Loan B Facility due October 2018 [Member]	Dec. 31, 2012 Yen-denominated [Member] Term Loan A Facility [Member]	Dec. 31, 2012 Yen-denominated [Member] Prepaid 2013 payments [Member] Term Loan A Facility [Member]
Debt Disclosure [Line Items]
Aggregate principal amount					$ 425				$ 750			$ 750
Debt interest rate				6.50%		6.50%	8.125%	8.125%		8.375%	8.375%				5.625%	5.625%
Repurchase aggregate principal amount															400
Senior Notes maturity due										Mar. 15, 2012					Jul. 15, 2013
Aggregate repurchase price of senior notes															421
Premium paid on redemption of debt percentage															3.00%
Early redemption															400
Premium paid on redemption of debt															13
Accrued interest paid on redemption of debt															8
Recognized net pre-tax loss	(36.9)	(38.5)													(12.0)
Gain on the termination of a related interest rate swap															1
Percentage of aggregate principal amount at which notes sold							100.00%			100.00%
Line of Credit Facility																				700	700
Term period of credit facility																			5 years	5 years		7 years
Additional interest rate of LIBOR loans																				2.50%						3.00%		3.50%
Additional interest rate of base rate loans																				1.50%						2.00%		2.50%
Reduction in interest rate for LIBOR loans																				2.25%
Reduction in interest rate for base rate loans																				1.25%
Percentage of floor to which LIBOR subjected																						1.00%
Prepaid debt																		1,100											90	95
Refinance of the remaining principal amount of term loan																		801											80
Lender fees																	48	7											1
Non-lender fees																	51	7											1
Percentage of principal debt refinanced																		99.75%					99.75%
Unamortized original issuance discounts																		9
Unamortized discount																0.3	28.0	2.0					15.6	26.5
Amortization expenses related to the debt instruments													23	7
Percentage of principal amount of notes sold to investor																									98.00%		97.00%
Short-term borrowings	$ 39.2		$ 34.5