Debt (Detail) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013		May 31, 2013	Dec. 31, 2012
Debt Instrument [Line Items]
Total debt	$ 3,927.3			$ 3,798.1
Less: current portion	(525.4)			(504.7)
Total long-term debt	3,401.9			3,293.4
Senior Secured Credit Facility Term Loans
Debt Instrument [Line Items]
Total debt	1,438.4			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%	8.00%
Debt instrument maturity year	2016		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	654.7	[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	467.1	[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	426.9	[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	214.9	[3]
Interest rate of debt instrument	1.50%			1.50%
Debt instrument maturity year	2019			2019
Securitization Facility
Debt Instrument [Line Items]
Total debt	381.9			383.8
Non-U.S. Borrowings
Debt Instrument [Line Items]
Total debt	37.5			31.8
Other debt
Debt Instrument [Line Items]
Total debt	$ 5.9			$ 6.7

[1] The "Senior Notes."

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

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