Contingencies (Tables)

12 Months Ended

Dec. 31, 2015

Commitments and Contingencies Disclosure [Abstract]

Estimated Future Settlement Of Existing Claims [Table Text Block]

	December 31,
(millions of dollars)	2015		2014
Assets:
Other non-current assets	$	108.5	$	111.8
Total insurance assets	$	108.5	$	111.8
Liabilities:
Accounts payable and accrued expenses	$	47.7	$	47.4
Other non-current liabilities	60.8		64.4
Total accrued liabilities	$	108.5	$	111.8