DISPOSITION	6 Months Ended
Jun. 30, 2026
Discontinued Operations and Disposal Groups [Abstract]
DISPOSITION	DISPOSITION Illinois Segment Sale of Certain Real Estate by The Peoples Gas Light and Coke Company In January 2026, we sold approximately 15 acres of real estate owned by PGL that was no longer being utilized in its operations, for $20.9 million, which is net of selling costs. The real estate was located in Chicago, Illinois. As a result of the sale, a pre-tax gain in the amount of $11.9 million was recorded within other operation and maintenance expense on our income statement. The book value of the real estate included in the sale was not material and, therefore, was not presented as held for sale.

DISPOSITION

6 Months Ended

Jun. 30, 2026

Discontinued Operations and Disposal Groups [Abstract]

Illinois Segment

Sale of Certain Real Estate by The Peoples Gas Light and Coke Company

In January 2026, we sold approximately 15 acres of real estate owned by PGL that was no longer being utilized in its operations, for $20.9 million, which is net of selling costs. The real estate was located in Chicago, Illinois. As a result of the sale, a pre-tax gain in the amount of $11.9 million was recorded within other operation and maintenance expense on our income statement. The book value of the real estate included in the sale was not material and, therefore, was not presented as held for sale.