Income Taxes (Details) - State and Local Jurisdiction - USD ($) $ in Millions	3 Months Ended
Jun. 30, 2025	Jun. 30, 2024
Kansas Department of Revenue
Operating Loss Carryforwards [Line Items]
Reduction of our deferred tax expense	$ 115
Arkansas Department of Revenue
Operating Loss Carryforwards [Line Items]
Reduction of our deferred tax expense		$ 8

Amount of income tax expense (benefit) from continuing operations attributable to an adjustment of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (g)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-9

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration