Leases and Commitments (Tables)

12 Months Ended

Dec. 31, 2015

Leases [Abstract]

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

(millions of dollars)
2016	$	31.7
2017	16.4
2018	11.1
2019	8.2
2020	7.2
After 2020	2.0
Total minimum lease payments	$	76.6