Debt (Detail) (USD $) In Millions, unless otherwise specified	Sep. 30, 2013		Dec. 31, 2012
Debt Instrument [Line Items]
Total debt	$ 3,904.1		$ 3,798.1
Less: current portion	(524.3)		(504.7)
Total long-term debt	3,379.8		3,293.4
Senior Secured Credit Facility Term Loans
Debt Instrument [Line Items]
Total debt	1,410.6		1,235.5
8% Senior Notes Due 2016
Debt Instrument [Line Items]
Total debt			295.7
Interest rate of debt instrument	8.00%		8.00%
Debt instrument maturity year	2016		2016
6 1/8% Senior Notes Due 2022
Debt Instrument [Line Items]
Total debt	300.0	[1]	300.0	[1]
Interest rate of debt instrument	6.125%		6.125%
Debt instrument maturity year	2022		2022
7 1/2% Senior Subordinated Notes Due 2017
Debt Instrument [Line Items]
Total debt	654.4	[2]	655.3	[2]
Interest rate of debt instrument	7.50%		7.50%
Debt instrument maturity year	2017		2017
7 1/2% Senior Subordinated Notes Due 2020
Debt Instrument [Line Items]
Total debt	473.7	[2]	468.4	[2]
Interest rate of debt instrument	7.50%		7.50%
Debt instrument maturity year	2020		2020
1 7/8% Senior Subordinated Convertible Notes due 2018
Debt Instrument [Line Items]
Total debt	429.9	[3]	420.9	[3]
Interest rate of debt instrument	1.875%		1.875%
Debt instrument maturity year	2018		2018
1 1/2% Senior Subordinated Convertible Notes due 2019
Debt Instrument [Line Items]
Total debt	216.6	[3]
Interest rate of debt instrument	1.50%		1.50%
Debt instrument maturity year	2019		2019
Securitization Facility
Debt Instrument [Line Items]
Total debt	377.9		383.8
Non-U.S. Borrowings
Debt Instrument [Line Items]
Total debt	35.4		31.8
Other
Debt Instrument [Line Items]
Total debt	$ 5.6		$ 6.7

[1] The "Senior Notes."

[2] Collectively, the "Senior Subordinated Notes."

[3] Collectively, the "Senior Subordinated Convertible Notes."