Borrowings and Lines of Credit - Schedule of Debt Issuance Expenses (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Debt Disclosure [Abstract]
Debt issuance costs amortization	$ 3	$ 2	$ 5	$ 5
Total interest expense on external debt	$ 62	$ 50	$ 120	$ 107

Amount of the cost of borrowed funds accounted for as interest expense for debt.

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Name:	us-gaap_InterestExpenseDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration