Commitments and Contingencies Marshall Wild Fire (Details) $ in Millions	Dec. 31, 2023 USD ($) complaint numberOfPlaintiffs
Commitments and Contingencies Disclosure [Abstract]
Estimated property losses caused by Marshall Wildfire	$ 2,000.0
Number of complaints related to the Marshall Wildfire | complaint	302
Number of plaintiffs related to the Marshall Wildfire | numberOfPlaintiffs	4,047
Cap of noneconomic loss in a civil action other than a medical malpractice under Colorado law	$ 0.6
Amount of insurance coverage	$ 500.0