Equity Method Investment, Other than Temporary Impairment, After Tax

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- Definition

Fair Value Measurement, Trading Price, Per Share

+ References

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- Definition

Amount of other-than-temporary decline in value that has been recognized against investment accounted for under equity method of accounting.

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- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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- Definition

Fair value portion of investments accounted under the equity method.

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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

Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Non-Derivative Fair Value Measurements (Nonrecurring Fair Value Measurements) (Details) - USD ($) $ / shares in Units, $ in Millions				3 Months Ended
	Mar. 31, 2025	Dec. 31, 2024	Sep. 30, 2023	Mar. 31, 2025	Dec. 31, 2024	Sep. 30, 2023	Dec. 31, 2025	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-lived assets, carrying amount		$ 138,852.0			$ 138,852.0		$ 156,197.0	$ 125,776.0
Investment in equity method investees		6,118.0			6,118.0		5,528.0	$ 6,156.0
NEER
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment in equity method investees		$ 2,838.0			2,838.0		$ 2,123.0
NEER \| XPLR
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurement, Trading Price, Per Share	$ 9.50	$ 17.80	$ 29.70
Investment in equity method investees	$ 1,700.0	$ 2,600.0	$ 4,200.0	$ 1,700.0	2,600.0	$ 4,200.0
Equity Method Investment, Other than Temporary Impairment, After Tax				500.0	600.0	900.0
Equity Method Investments, Fair Value Disclosure	$ 1,000.0	$ 1,800.0	$ 3,000.0	1,000.0	1,800.0	3,000.0
Equity Method Investment, Other than Temporary Impairment				$ 700.0	$ 800.0	$ 1,200.0