Income Taxes - Narrative (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended
Feb. 28, 2026	Mar. 31, 2026	Dec. 31, 2025
Income Taxes [Line Items]
Other deferred debits and other assets		$ 5,127	$ 2,450
Increase (decrease) in income tax receivable	$ (235)	235
Separation from Parent
Income Taxes [Line Items]
Accounts receivable, net		58	175
Other deferred debits and other assets		373	21
Separation from Parent \| Other Noncurrent Liabilities \| Affiliated Entities
Income Taxes [Line Items]
Payable for tax liabilities upon separation		$ 32	$ 43

Amount of liabilities classified as other.

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+ Details