Income Taxes (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Income Tax Contingency [Line Items]
Effective income tax rate	19.10%	19.90%	19.70%	18.50%
Federal Statutory Income Tax Rate, Percent	21.00%	21.00%	21.00%	21.00%
Unrecognized Tax Benefits, Period Increase (Decrease)	$ 3		$ 6
Unrecognized Tax Benefits	116		116
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	93		93
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	$ 1		3
Decrease in Federal Cash Tax Payments due to OBBBA			$ 147
Minimum
Income Tax Contingency [Line Items]
OBBBA unamortized tax expenditures, deduction period			1 year
Maximum
Income Tax Contingency [Line Items]
OBBBA unamortized tax expenditures, deduction period			2 years

Decrease in Federal Cash Tax Payments due to the One Big Beautiful Bill Act

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The deduction period for the One Big Beautiful Bill Act's acceleration of unamortized research and development expenditures

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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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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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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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Amount of unrecognized tax benefits.

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Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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Amount of increase (decrease) in unrecognized tax benefits attributable to uncertain tax positions taken in tax returns.

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

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