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Summary of Significant Accounting and Reporting Policies - Noncontrolling Interests (Details) - NEER [Member] $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($) MW	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Summary of Significant Accounting Policies [Line Items]
income associated with differential membership interests \| $	$ 1,329	$ 1,135	$ 987
Differential Membership Interests
Summary of Significant Accounting Policies [Line Items]
Noncontrolling Interests associated with Differential Membership Interests \| $	$ (9,062)	$ (8,857)
Variable Interest Entity, Primary Beneficiary [Member]
Summary of Significant Accounting Policies [Line Items]
Wind Electric Generating Facility Capability	11,258
Solar generating facility capability	4,084
Battery Storage Facility Capability [Line Items]	1,919