Debt and Credit Facilities - Total Debt Outstanding (Parenthetical) (Detail) - USD ($) $ in Millions		3 Months Ended	12 Months Ended
		Mar. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Short-term borrowings	[1],[2],[3]	$ 96.9	$ 83.0
Short-term Debt, Weighted Average Interest Rate		3.40%	4.80%
Long-term Debt, Weighted Average Interest Rate		4.60%	4.70%
Unamortized discounts/issuance costs		$ 34.8	$ 36.3
U.S. Accounts Receivable Securitization Program [Member]
Debt Instrument [Line Items]
Short-term borrowings		30.0	$ 83.0
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Short-term borrowings		5.0
Line of Credit [Member]
Debt Instrument [Line Items]
Short-term borrowings		$ 61.9
Term Loan A Due July 2019 [Member]
Debt Instrument [Line Items]
Debt maturity month and year, Term loan		2019-07	2019-07
Term loan facilities, prepayment due year		2018
6.50% Senior Notes Due December 2020 [Member]
Debt Instrument [Line Items]
Debt interest rate		6.50%	6.50%
Debt maturity month and year, Senior notes		2020-12	2020-12
4.875% Senior Notes due December 2022 [Member]
Debt Instrument [Line Items]
Debt interest rate		4.875%	4.875%
Debt maturity month and year, Senior notes		2022-12	2022-12
5.25% Senior Notes Due April 2023 [Member]
Debt Instrument [Line Items]
Debt interest rate		5.25%	5.25%
Debt maturity month and year, Senior notes		2023-04	2023-04
4.50% Senior Notes due September 2023 [Member]
Debt Instrument [Line Items]
Debt interest rate		4.50%	4.50%
Debt maturity month and year, Senior notes		2023-09	2023-09
5.125% Senior Notes due December 2024 [Member]
Debt Instrument [Line Items]
Debt interest rate		5.125%	5.125%
Debt maturity month and year, Senior notes		2024-12	2024-12
5.50% Senior Notes due September 2025 [Member]
Debt Instrument [Line Items]
Debt interest rate		5.50%	5.50%
Debt maturity month and year, Senior notes		2025-09	2025-09
6.875% Senior Notes Due July 2033 [Member]
Debt Instrument [Line Items]
Debt interest rate		6.875%	6.875%
Debt maturity month and year, Senior notes		2033-07	2033-07

[1] As of March 31, 2017 and December 31, 2016, there were $26.3 million and $25.4 million of cash held on deposit, respectively, as a compensating balance for certain short-term borrowings, which is recorded in other current assets on the Condensed Consolidated Balance Sheet

[2] Includes total borrowings under the accounts receivable securitization programs, the revolving credit facility and borrowings under lines of credit available to several subsidiaries.

[3] Short-term borrowings of $96.9 million at March 31, 2017 are comprised primarily of $61.9 million short-term borrowing from various lines of credit, $30.0 million of borrowings outstanding under our U.S. accounts receivable securitization program and $5.0 million outstanding under our revolving credit facility. Short-term borrowings at December 31, 2016 were comprised primarily of $83.0 million short-term borrowings from various lines of credit.