Utility Plant and Nonutility Property (Tables)

12 Months Ended

Dec. 31, 2023

Utility Plant And Non Utility Property [Abstract]

Property, Plant and Equipment

Major classes of utility plant and other property and their respective balances at December 31, 2023 and 2022 were as follows:

At December 31,	2023		2022
(millions)
Gross utility plant:
Generation	$	6,322	$	6,108
Transmission		2,272		2,145
Distribution		5,901		5,472
Storage		79		76
General and other		644		630
Intangible		282		257
Construction work in progress		606		541
Nuclear fuel		609		550
Total gross utility plant	$	16,715	$	15,779
Gross nonutility property	$	25	$	21

Schedule of Jointly Owned Utility Plants

At December 31,	2023			2022
	Summer Unit 1			Summer Unit 1
Percent owned	66.7%			66.7%
Plant in service	$	1.6	billion	$	1.6	billion
Accumulated depreciation	$	772	million	$	751	million
Construction work in progress	$	88	million	$	87	million