ACCUMULATED OTHER COMPREHENSIVE INCOME (Tables)

3 Months Ended

Mar. 31, 2015

Notes To Consolidated Financial Statements [Abstract]

Schedule Of Accumulated Other Comprehensive Income Loss Table Text Block

	For the Three Months Ended March 31, 2015								For the Three Months Ended March 31, 2014
	Qualified		Unrealized						Qualified		Unrealized
	Cash Flow		Gains on		Defined				Cash Flow		Gains on		Defined
	Hedging		Marketable		Benefit				Hedging		Marketable		Benefit
(Millions of Dollars)	Instruments		Securities		Plans		Total		Instruments		Securities		Plans		Total
Balance as of Beginning of Period	$	(12.4)	$	0.7	$	(62.3)	$	(74.0)	$	(14.4)	$	0.4	$	(32.0)	$	(46.0)
OCI Before Reclassifications		-		0.1		-		0.1		-		0.2		-		0.2
Amounts Reclassified from AOCI		0.5		-		1.0		1.5		0.5		-		1.0		1.5
Net OCI		0.5		0.1		1.0		1.6		0.5		0.2		1.0		1.7
Balance as of End of Period	$	(11.9)	$	0.8	$	(61.3)	$	(72.4)	$	(13.9)	$	0.6	$	(31.0)	$	(44.3)