FAIR VALUE MEASUREMENTS (Tables)

12 Months Ended

Dec. 31, 2015

FAIR VALUE MEASUREMENTS

Schedule of estimated fair value of debt

	2015		2014
December 31 (millions of dollars)	Carrying Value	Fair Value	Carrying Value	Fair Value
Senior Credit Facility due 2017	200	200	330	330
2013 Term Loan Facility due 2018	500	500	500	500
Short-Term Loan Facility due 2015	–	–	170	170
2015 Term Loan Facility due 2018	170	170	–	–
4.65% Unsecured Senior Notes due 2021	350	338	350	375
4.375% Unsecured Senior Notes due 2025	349	314	–	–
5.09% Unsecured Senior Notes due 2015	–	–	75	76
5.29% Unsecured Senior Notes due 2020	100	108	100	111
5.69% Unsecured Senior Notes due 2035	150	151	150	168
Unsecured Term Loan Facility due 2019	75	75	–	–
3.82% Series D Senior Notes due 2017	16	17	20	21
	1,910	1,873	1,695	1,751