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Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Tax Credit Carryforward [Line Items]
Effective tax rate (as a percent)	19.10%	23.70%
Unrecognized tax benefits that would affect the effective tax rate	$ 669		$ 686
Deferred tax asset, noncurrent	4,000
Deferred tax assets valuation allowance	1,000		$ 1,100
PWS Settlement
Tax Credit Carryforward [Line Items]
Deferred tax assets	$ 2,600

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- Definition

Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and other assets expected to be realized or consumed after one year or normal operating cycle, if longer.

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Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

+ References

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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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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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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