Debt (Detail) (USD $) In Millions, unless otherwise specified	9 Months Ended		12 Months Ended
	Sep. 30, 2014		Dec. 31, 2013
Debt Instrument [Line Items]
Total debt	$ 5,096.2		$ 4,742.4
Less: current portion	(832.5)		(655.1)
Total long-term debt	4,263.7		4,087.3
Senior Secured Credit Facility Term Loans
Debt Instrument [Line Items]
Total debt	2,022.1		2,127.4
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
3 3/4% Senior Notes Due 2021
Debt Instrument [Line Items]
Total debt	376.9
Interest rate of debt instrument	3.75%		3.75%
Debt instrument maturity year	2021		2021
7 1/2% Senior Subordinated Notes Due 2017
Debt Instrument [Line Items]
Total debt	648.0	[2]	654.1	[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			477.1
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	442.5	[3]	433.0	[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	224.1	[3]	218.5	[3]
Interest rate of debt instrument	1.50%		1.50%
Debt instrument maturity year	2019		2019
1 1/8% Senior Subordinated Convertible Notes due 2034
Debt Instrument [Line Items]
Total debt	479.9	[3]
Interest rate of debt instrument	1.125%		1.125%
Debt instrument maturity year	2034		2034
Securitization Facility
Debt Instrument [Line Items]
Total debt	466.6		477.9
Non-U.S. Borrowings
Debt Instrument [Line Items]
Total debt	127.7		45.6
Other
Debt Instrument [Line Items]
Total debt	$ 8.4		$ 8.8

[1] The "Senior Notes."

[2] The "Senior Subordinated Notes."

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