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v3.25.1

Supplemental Information (Narrative) (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Effective Income Tax Rate Reconciliation, Share-based Compensation, Excess Tax Benefit, Amount | $ (1) | $ 1 |
Deferred Compensation Liability, Classified, Noncurrent | $ 79 |  | $ 79
January 1, 2025 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 3 years |  |
Performance Shares | January 1, 2025 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Shares granted (in shares) | 275,869 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Granted in Period, Fair Value | $ 33 |  |
Stock Issued During Period Percentage Conversion Of Units, Low End | 0.00% |  |
Stock Issued During Period Percentage Conversion Of Units, High End | 200.00% |  |
Performance Shares | Market performance measures achievement | January 1, 2025 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Shares granted (in shares) | 236,448 |  |
Performance Shares | Renewable generation and energy storage installation targets | January 1, 2025 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Shares granted (in shares) | 39,421 |  |
Restricted Stock Units (RSUs) | January 1, 2025 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Shares granted (in shares) | 118,213 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Granted in Period, Fair Value | $ 11 |  |

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