Long-Term Debt - Summary of Long-term Debt (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Dec. 31, 2012
Line of Credit Facility [Line Items]
Capital leases	$ 92	$ 96
Total debt	3,537	3,430
Less: current portion	36	38
Long-term debt	3,501	3,392
Secured debt [Member] | Term loans [Member] | Dollar denominated maturing on June 2019 [Member]
Line of Credit Facility [Line Items]
Long-term debt	1,530
Maturity	June 2019
Secured debt [Member] | Term loans [Member] | Dollar denominated maturing on August 2015 [Member]
Line of Credit Facility [Line Items]
Long-term debt		1,064
Maturity	August 2015
Secured debt [Member] | Term loans [Member] | Euro denominated maturing on August 2015 [Member]
Line of Credit Facility [Line Items]
Long-term debt		284
Maturity	August 2015
Secured debt [Member] | Term loans [Member] | Tranche S [Member]
Line of Credit Facility [Line Items]
Long-term debt		137
Maturity	August 2015
Secured debt [Member] | Revolver Borrowings [Member] | Dollar denominated [Member]
Line of Credit Facility [Line Items]
Long-term debt		20
Secured debt [Member] | 2012 Secured Credit Agreement [Member] | Dollar denominated term loan [Member]
Line of Credit Facility [Line Items]
Long-term debt		171
Maturity	November 2015
Secured debt [Member] | Second Lien Credit Agreement [Member] | Tranche One Dollar Denominated Term Loans [Member]
Line of Credit Facility [Line Items]
Long-term debt	640
Maturity	January 2016
Secured debt [Member] | Second Lien Credit Agreement [Member] | Tranche Two Dollar Denominated Term Loans [Member]
Line of Credit Facility [Line Items]
Long-term debt	229
Maturity	December 2016
Secured debt [Member] | Second Priority Secured Notes [Member] | Dollar denominated floating rate notes [Member]
Line of Credit Facility [Line Items]
Long-term debt		225
Maturity	December 2016
Unsecured debt [Member] | Senior Notes [Member] | Dollar denominated floating rate notes [Member]
Line of Credit Facility [Line Items]
Long-term debt		122
Maturity	September 2014
Unsecured debt [Member] | Senior Notes [Member] | Euro denominated floating rate notes [Member]
Line of Credit Facility [Line Items]
Long-term debt		201
Maturity	September 2014
Unsecured debt [Member] | Senior Notes [Member] | 9 7/8% Dollar denominated notes [Member]
Line of Credit Facility [Line Items]
Long-term debt		429
Maturity	September 2014
Unsecured debt [Member] | Senior Notes [Member] | 9% Dollar denominated notes [Member]
Line of Credit Facility [Line Items]
Long-term debt		250
Maturity	March 2016
Unsecured debt [Member] | Senior Notes [Member] | 13 7/8% Dollar denominated notes [Member]
Line of Credit Facility [Line Items]
Long-term debt	406
Maturity	March 2016
Unsecured debt [Member] | Senior Notes [Member] | Dollar denominated floating rate notes March 2016 [Member]
Line of Credit Facility [Line Items]
Long-term debt	185
Maturity	March 2016
Unsecured debt [Member] | Senior Subordinated Notes [Member] | 11 7/8% Dollar denominated notes [Member]
Line of Credit Facility [Line Items]
Long-term debt	25
Maturity	September 2016
Unsecured debt [Member] | Senior Subordinated Notes [Member] | 11 7/8% Dollar denominated notes [Member]
Line of Credit Facility [Line Items]
Long-term debt	247	247
Maturity	September 2016
Unsecured debt [Member] | Senior Subordinated Notes [Member] | 10 7/8% Euro denominated notes [Member]
Line of Credit Facility [Line Items]
Long-term debt	$ 183	$ 184
Maturity	September 2016