Business Segments Business Segments (Tables)

12 Months Ended

Dec. 31, 2024

Segment Reporting Information [Line Items]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

The following tables present financial information for DPL’s reportable business segment:

$ in millions	Utility		Other		Adjustments and Eliminations		DPL Consolidated
Year ended December 31, 2024
Revenue from external customers	$	866.7	$	9.8	$	—	$	876.5
Intersegment revenue	0.9		4.9		(5.8)		—
Total revenue	867.6		14.7		(5.8)		876.5
Net purchased power	315.4		1.9		(0.9)		316.4
Operation and maintenance	258.3		5.7		(4.9)		259.1
Depreciation and amortization	93.4		1.8		—		95.2
Taxes other than income taxes	113.4		0.1		—		113.5
Interest expense	48.2		36.6		0.2		85.0
Other segment items (a)	(1.2)		(2.1)		(0.2)		(3.5)
Income / (loss) before income tax	40.1		(29.3)		—		10.8
Income tax expense / (benefit)	3.2		(6.2)		—		(3.0)
Net income / (loss)	$	36.9	$	(23.1)	$	—	$	13.8
Cash capital expenditures	$	547.9	$	1.6	$	—	$	549.5

(a)    Other segment items primarily includes AFUDC equity and other miscellaneous gains and losses in Other income, net.

$ in millions	Utility		Other		Adjustments and Eliminations		DPL Consolidated
Year ended December 31, 2023
Revenue from external customers	$	851.3	$	9.7	$	—	$	861.0
Intersegment revenue	0.7		4.4		(5.1)		—
Total revenue	852.0		14.1		(5.1)		861.0
Net purchased power	346.0		1.6		(0.7)		346.9
Operation and maintenance	229.8		6.7		(4.4)		232.1
Depreciation and amortization	80.7		1.4		—		82.1
Taxes other than income taxes	100.6		0.2		—		100.8
Interest expense	25.8		39.2		(1.4)		63.6
Other segment items (a)	(5.8)		(2.4)		1.4		(6.8)
Income / (loss) before income tax	74.9		(32.6)		—		42.3
Income tax expense / (benefit)	13.5		(6.9)		—		6.6
Net income / (loss)	$	61.4	$	(25.7)	$	—	$	35.7
Cash capital expenditures	$	384.3	$	3.6	$	—	$	387.9

(a)    Other segment items primarily includes AFUDC equity and other miscellaneous gains and losses in Other income, net.

$ in millions	Utility		Other		Adjustments and Eliminations		DPL Consolidated
Year ended December 31, 2022
Revenue from external customers	$	859.3	$	9.7	$	—	$	869.0
Intersegment revenue	0.8		3.6		(4.4)		—
Total revenue	860.1		13.3		(4.4)		869.0
Net purchased power	469.0		2.0		(0.8)		470.2
Operation and maintenance	185.1		3.2		(3.6)		184.7
Depreciation and amortization	78.7		1.3		—		80.0
Taxes other than income taxes	85.1		0.2		—		85.3
Interest expense	28.8		39.0		(6.9)		67.8
Other segment items (a)	(2.4)		(2.3)		6.9		(4.7)
Income / (loss) before income tax	15.8		(30.1)		—		(14.3)
Income tax expense / (benefit)	(3.1)		(6.5)		—		(9.6)
Net income / (loss)	$	18.9	$	(23.6)	$	—	$	(4.7)
Cash capital expenditures (c)	$	283.7	$	3.6	$	—	$	287.3

(a)    Other segment items primarily includes AFUDC equity and other miscellaneous gains and losses in Other income, net.

Total Assets	December 31, 2024		December 31, 2023		December 31, 2022
Utility	$	3,355.2	$	2,871.0	$	2,405.9
All Other (a)	62.2		35.2		16.5
DPL Consolidated	$	3,417.4	$	2,906.2	$	2,422.4

(a)    "All Other" includes Eliminations for all periods presented.