Long-Term Debt, Short-Term Debt, and Financing Arrangements - Proforma Consolidated Leverage Ratio (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Greater than or equal to 3.0x
Line of Credit Facility [Line Items]
Maximum aggregate principal amount of purchases, cancellations and redemptions of senior notes	$ 20
Greater than or equal to 2.5x
Line of Credit Facility [Line Items]
Maximum aggregate principal amount of purchases, cancellations and redemptions of senior notes	100
Greater than or equal to 2.0x
Line of Credit Facility [Line Items]
Maximum aggregate principal amount of purchases, cancellations and redemptions of senior notes	$ 200
Less than 2.0x
Line of Credit Facility [Line Items]
Less than 2.0x	no limit
Europe
Line of Credit Facility [Line Items]
Financing Cost Related To Sale Of Securitized Receivables	2.00%	2.00%	2.00%