Business Acquisition, Consideration Transferred, Equity Interest, Share Issued, Lock-up Period, Percentage

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- Definition

Business Acquisition, Equity Interest Issued or Issuable, Par Value

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- Definition

Business Combination, Definitive Agreement Period

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- Definition

Capacity of facility of company owned solar distribution generation facilities.

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Number of Generation Assets to be Sold

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Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Number of shares of equity interest issued or issuable by acquirer as part of consideration transferred in business combination.

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- Definition

Amount of acquiree's revenue since acquisition date of business combination included in consolidated statement of income.

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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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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

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Mergers, Acquisitions, and Dispositions - Narrative (Details) $ / shares in Units, shares in Millions, $ in Millions		1 Months Ended	3 Months Ended
	Jan. 07, 2026 USD ($) generationAsset $ / shares GW TW shares	Jan. 31, 2026 USD ($) generationAsset GW	Mar. 31, 2026 USD ($)	Jun. 30, 2027	Jun. 30, 2026
LS Power
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of generation assets to be sold \| generationAsset	6
Consideration \| $		$ 5,000
LS Power \| PJM
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of generation assets to be sold \| generationAsset		5
LS Power \| ERCOT
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of generation assets to be sold \| generationAsset		1
Natural Gas, Geothermal, Battery Storage, and Solar Assets \| LS Power
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
MW of generation \| GW		4.4
Calpine
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Newly issued shares (in shares) \| shares	50
Par value (in dollars per share) \| $ / shares	$ 0
Payments to acquire businesses \| $	$ 4,500
Definitive agreement period	240 days
Operating revenues \| $			$ 3,136
Calpine \| Customer Relationships
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Weighted average useful life	15 years
Calpine \| Trade Names
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Weighted average useful life	5 years
Calpine \| Energy Contracts
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Weighted average useful life	6 years
Calpine \| Forecast
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Newly issued shares, lock-up period (percentage)				50.00%	50.00%
Calpine \| Retail Electric Supplier Platform
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
MW of generation \| TW	62
Calpine \| Natural Gas, Geothermal, Battery Storage, and Solar Assets
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
MW of generation \| GW	23