Employee Benefit Plans - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Schedule Of Employee Benefit Plans [Line Items]
Tax-deferred contributions, description of plan	The Company also maintains certain supplemental benefit plans that allow participants to (i) make tax-deferred contributions and (ii) receive Company-provided allocations that cannot be made under the Profit Sharing and Savings Plan
Supplemental benefit plan liabilities	$ 493.5	$ 482.5
Derivative contracts, reasons for holding derivative instruments	The Company has entered into derivative contracts to hedge market-driven changes in certain of the liabilities.
Derivative contracts, fair value of derivatives indexed to the Company's stock	132.3
Investment, indexed to the Company's prepaid expenses and other current assets	123.8
Derivative contracts, disclosure of the effect on the results of operations	All changes in liabilities for these nonqualified plans and in the fair value of the derivatives are recorded in Selling, general & administrative expenses. Changes in fair value of the derivatives indexed to the Company’s stock are recorded in the income statement because the contracts provide the counterparty with a choice to settle in cash or shares.
Maximum
Schedule Of Employee Benefit Plans [Line Items]
Participants' future contributions to the 401(k) feature and the discretionary employer matching contribution feature	20.00%
U.S.
Schedule Of Employee Benefit Plans [Line Items]
Profit sharing and savings plan costs	27.9	41.3	51.4
Outside the U.S.
Schedule Of Employee Benefit Plans [Line Items]
Profit sharing and savings plan costs	62.5	58.3	57.6
Total liabilities for international retirement plans	$ 77.7	$ 125.4