Business Segment Information (Tables)

12 Months Ended

Dec. 31, 2017

Segment Reporting [Abstract]

Summary Of Company's Reporting Segments

The following table provides information about IPALCO’s business segments (in millions):

	2017							2016							2015
	Utility		All Other			Total		Utility		All Other			Total		Utility		All Other			Total
Operating revenues	$	1,350	$	—		$	1,350	$	1,347	$	—		$	1,347	$	1,250	$	—		$	1,250
Depreciation and amortization	$	208	$	—		$	208	$	218	$	—		$	218	$	188	$	—		$	188
Income taxes	$	66	$	(17	)	$	49	$	73	$	(11	)	$	61	$	56	$	(25	)	$	32
Net income	$	137	$	(28	)	$	109	$	156	$	(25	)	$	131	$	102	$	(42	)	$	60
Utility plant - net of depreciation (1)	$	3,981	$	—		$	3,981	$	3,881	$	—		$	3,881	$	3,441	$	—		$	3,441
Capital expenditures	$	229	$	—		$	229	$	608	$	—		$	608	$	686	$	—		$	686