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Equity Equity Transactions with Noncontrolling Interests (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Noncontrolling Interest [Line Items]
Contributions from noncontrolling interests	$ 26	$ 18
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	6,280			$ 5,985
Payments to Noncontrolling Interests	23	$ 47
Chile Renovables SpA
Noncontrolling Interest [Line Items]
Sale of Stock, Consideration Received on Transaction			$ 40
Adjustments to Additional Paid in Capital, Other	(13)
Noncontrolling Interest, Increase from Subsidiary Equity Issuance			$ 53
Chile Renovables SpA \| Global Infrastructure Management
Noncontrolling Interest [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners		49.00%
Additional Paid-in Capital [Member]
Noncontrolling Interest [Line Items]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 7,068	$ 6,557		$ 6,355	$ 6,688