Accumulated Other Comprehensive Income (Loss) - Parenthetical (Details) $ in Millions	9 Months Ended
Sep. 30, 2026 USD ($)
Derivative Instruments
Accumulated Other Comprehensive (Loss) Income
Other comprehensive income (loss) before reclassifications, tax	$ (1)
Amounts reclassified from accumulated other comprehensive (income) loss, tax	0
Available- for-Sale Securities
Accumulated Other Comprehensive (Loss) Income
Other comprehensive income (loss) before reclassifications, tax	(4)
Amounts reclassified from accumulated other comprehensive (income) loss, tax	0
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive (Loss) Income
Other comprehensive income (loss) before reclassifications, tax	0
Amounts reclassified from accumulated other comprehensive (income) loss, tax	0
Post Retirement Benefit Obligations
Accumulated Other Comprehensive (Loss) Income
Other comprehensive income (loss) before reclassifications, tax	0
Amounts reclassified from accumulated other comprehensive (income) loss, tax	$ 0

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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+ Details