Income Taxes, Change in Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Unrecognized Tax Benefits [Roll Forward]
Balance as of beginning of year	$ 316	$ 186	$ 284
Additions for tax positions related to the current year	4	52	18
Additions for tax positions related to prior years	13	106	4
Reductions for tax positions related to prior years	(12)	(19)	(73)
Reductions for tax positions related to the lapse of applicable statute of limitations	(6)	(7)	(9)
Settlements	0	(2)	(38)
Balance as of end of year	315	316	$ 186
Unrecognized Tax Benefits (Textual)
Unrecognized tax benefits if recognized that would reduce the effective tax rate	$ 252	$ 236

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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Amount of unrecognized tax benefits.

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Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 740
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-Name Accounting Standards Codification
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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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

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