DERIVATIVE INSTRUMENTS (Tables)

9 Months Ended

Sep. 30, 2019

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of derivative assets and liabilities

The following table shows our derivative assets and derivative liabilities:

	September 30, 2019				December 31, 2018
(in millions)	Derivative Assets		Derivative Liabilities		Derivative Assets		Derivative Liabilities
Other current
Natural gas contracts	$	8.9	$	22.3	$	7.7	$	5.3
FTRs	6.2		—		7.4		—
Coal contracts	0.3		0.1		0.2		0.1
Interest rate swaps	—		2.5		—		0.4
Total other current *	15.4		24.9		15.3		5.8
Other long-term
Natural gas contracts	—		2.2		0.4		0.2
Coal contracts	0.3		0.1		0.2		—
Interest rate swaps	—		4.4		—		1.9
Total other long-term *	0.3		6.7		0.6		2.1
Total	$	15.7	$	31.6	$	15.9	$	7.9

*

On our balance sheets, we classify derivative assets and liabilities as other current or other long-term based on the maturities of the underlying contracts.

Schedule of estimated notional sales volumes and realized gains (losses)

Our estimated notional sales volumes and realized gains (losses) were as follows:

	Three Months Ended September 30, 2019				Three Months Ended September 30, 2018
(in millions)	Volumes	Gains (Losses)			Volumes	Gains
Natural gas contracts	37.8 Dth	$	(13.2	)	36.7 Dth	$	0.4
Petroleum products contracts	— gallons	—			1.3 gallons	0.5
FTRs	7.8 MWh	7.6			7.9 MWh	7.1
Total		$	(5.6	)		$	8.0

	Nine Months Ended September 30, 2019				Nine Months Ended September 30, 2018
(in millions)	Volumes	Gains (Losses)			Volumes	Gains (Losses)
Natural gas contracts	137.7 Dth	$	(16.8	)	124.7 Dth	$	(7.1	)
Petroleum products contracts	— gallons	—			5.1 gallons	1.3
FTRs	23.9 MWh	12.9			22.9 MWh	14.7
Total		$	(3.9	)		$	8.9

Schedule of net derivative instruments

The following table shows derivative assets and derivative liabilities if derivative instruments by counterparty were presented net on our balance sheets:

	September 30, 2019							December 31, 2018
(in millions)	Derivative Assets			Derivative Liabilities				Derivative Assets				Derivative Liabilities
Gross amount recognized on the balance sheet	$	15.7		$	31.6			$	15.9			$	7.9
Gross amount not offset on the balance sheet	(5.7		)	(23.9		)	(1)	(4.0		)	(2)	(4.9		)	(3)
Net amount	$	10.0		$	7.7			$	11.9			$	3.0

⁽¹⁾   Includes cash collateral posted of $18.2 million.

⁽²⁾   Includes cash collateral received of $0.2 million.

⁽³⁾   Includes cash collateral posted of $1.1 million.

Schedule of cash flow hedges recorded in other comprehensive loss and earnings

The table below shows the amounts related to these cash flow hedges recorded in other comprehensive loss and in earnings, along with our total interest expense on the income statements:

	Three Months Ended September 30					Nine Months Ended September 30
(in millions)	2019			2018		2019			2018
Derivative (losses) gains recognized in other comprehensive loss	$	(0.5	)	$	0.4	$	(5.3	)	$	0.4
Net derivative gains reclassified from accumulated other comprehensive loss to interest expense	0.2			0.2		1.0			1.3
Total interest expense line item on the income statements	125.8			112.0		374.3			327.2