Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2012

Fair Value Disclosures [Abstract]

Assets and liabilities measured at fair value

The following table classifies the assets and liabilities measured at fair value on a recurring basis as of June 30, 2012:

			Basis of fair value measurements
(millions of dollars)	Balance at June 30, 2012		Quoted prices in active markets for identical items (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)		Valuation technique
Assets:
Foreign currency contracts	$	6.7	$	—	$	6.7	$	—	A
Other non-current assets (insurance settlement agreement note receivable)	$	11.7	$	—	$	11.7	$	—	C
Liabilities:
Foreign currency contracts	$	0.5	$	—	$	0.5	$	—	A
Commodity contracts	$	—	$	—	$	—	$	—	A
Net investment hedge contracts	$	77.1	$	—	$	77.1	$	—	A

The following table classifies the assets and liabilities measured at fair value on a recurring basis as of December 31, 2011:

			Basis of fair value measurements
(millions of dollars)	Balance at December 31, 2011		Quoted prices in active markets for identical items (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)		Valuation technique
Assets:
Foreign currency contracts	$	2.7	$	—	$	2.7	$	—	A
Other non-current assets (insurance settlement agreement note receivable)	$	21.3	$	—	$	21.3	$	—	C
Liabilities:
Foreign currency contracts	$	2.9	$	—	$	2.9	$	—	A
Net investment hedge contracts	$	85.0	$	—	$	85.0	$	—	A