Public Utilities, Common Equity Ratio Percentage

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- Definition

Public Utilities, Debt Ratio Percentage

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No definition available.

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- Definition

Public Utilities, General Rate Case Authorizations, Annualized Incremental Revenues, Projected Infrastructure Filings Amount

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- Definition

Public Utilities, General Rate Case Authorizations, Annualized Incremental Revenues, Requested Rate Increase (Decrease), Amount

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No definition available.

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- Definition

Public Utilities, General Rate Case Authorizations, Annualized Incremental Revenues, Requested Rate, Increase (Decrease) In Capital Investments

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No definition available.

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- Definition

Public Utilities, General Rate Case Authorizations, Revenue, Partial Settlement, Amount

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No definition available.

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- Definition

Public Utilities, General Rate Case Authorizations, Revenue, Partial Settlement, Increase (Decrease) Amount

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No definition available.

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- Definition

Public Utilities, General Rate Case Authorizations, Revenue, Revised Requested Rate Increase (Decrease), Amount

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No definition available.

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- Definition

Public Utilities, Non-Equity Ratio Percentage

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- Definition

Percentage of public utility's approved debt to capital, including debt and equity.

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No definition available.

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- Definition

Percentage of public utility's approved equity to capital, including debt and equity.

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No definition available.

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- Definition

Percentage of public utility's approved return on equity.

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No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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- Definition

Percentage of public utility's requested return on equity.

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No definition available.

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Regulatory Matters - Pending General Rate Case Filing Additional Information (Details) - USD ($) $ in Millions									1 Months Ended	24 Months Ended
	Oct. 23, 2026	Jul. 01, 2026	Jun. 08, 2026	Jun. 05, 2026	May 15, 2026	Jan. 27, 2026	Nov. 03, 2025	Dec. 05, 2024	Aug. 06, 2026	Dec. 31, 2027
Missouri
Public Utilities, General Disclosures
General rate case authorizations, annualized incremental revenues, requested rate increase, amount		$ 179
General rate case authorizations, annualized incremental revenues, projected infrastructure filings amount		$ 32
Proposed return on equity, percentage		10.50%
Common equity, percentage		50.30%
Debt ratio, percentage		49.70%
General rate case authorizations, annualized incremental revenues, requested rate, increase in capital investments		$ 1,600
Kentucky
Public Utilities, General Disclosures
General rate case authorizations, annualized incremental revenues, requested rate increase, amount					$ 18
Proposed return on equity, percentage					10.75%
Common equity, percentage					52.29%
General rate case authorizations, annualized incremental revenues, requested rate, increase in capital investments					$ 108
Non-equity, percentage					47.71%
Illinois
Public Utilities, General Disclosures
Proposed return on equity, percentage						10.75%
Illinois \| Subsequent Event
Public Utilities, General Disclosures
Authorized return on equity, percentage	9.67%
Approved equity component (as a percent)	50.00%
Approved debt component (as a percent)	50.00%
Illinois \| Forecast
Public Utilities, General Disclosures
General rate case authorizations, annualized incremental revenues, requested rate, increase in capital investments										$ 577
Illinois \| Year 2027
Public Utilities, General Disclosures
General rate case authorizations, annualized incremental revenues, requested rate increase, amount						$ 119			$ 104
Common equity, percentage						52.42%
Debt ratio, percentage						47.58%
Illinois \| Public Utility Authorization Effective Date January 1, 2028
Public Utilities, General Disclosures
General rate case authorizations, annualized incremental revenues, requested rate increase, amount						$ 15			$ 16
Common equity, percentage						52.74%
Debt ratio, percentage						47.26%
Virginia
Public Utilities, General Disclosures
General rate case authorizations, annualized incremental revenues, requested rate increase, amount				$ 16			$ 22
Proposed return on equity, percentage				9.75%			10.75%
Common equity, percentage				51.79%			51.79%
General rate case authorizations, annualized incremental revenues, requested rate, increase in capital investments							$ 115
California
Public Utilities, General Disclosures
General rate case authorizations, annualized incremental revenues, requested rate, increase in capital investments			$ 750
Authorized return on equity, percentage								10.20%
California \| Public Utility, Authorization, Effective Date, Year 2027
Public Utilities, General Disclosures
General rate case authorizations, revenue, partial settlement, amount			24
General rate case authorizations, revenue, revised requested rate increase, amount			43
General rate case authorizations, revenue, partial settlement, increase (decrease) amount			(20)
California \| Public Utility, Authorization, Effective Date, Year 2028
Public Utilities, General Disclosures
General rate case authorizations, revenue, partial settlement, amount			21
General rate case authorizations, revenue, revised requested rate increase, amount			22
General rate case authorizations, revenue, partial settlement, increase (decrease) amount			(19)
California \| Public Utility, Authorization, Effective Date, Year 2029
Public Utilities, General Disclosures
General rate case authorizations, revenue, partial settlement, amount			22
General rate case authorizations, revenue, revised requested rate increase, amount			26
General rate case authorizations, revenue, partial settlement, increase (decrease) amount			$ 22