Income Taxes - Reconciliation of the U.S. federal statutory rate to effective rate (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Amount
Taxes computed at U.S. statutory rates	$ 154	$ 112	$ 160
State and local income taxes, net of federal tax		1	5
Statutory tax rate difference		(14)	21
Changes in valuation allowances		1	(14)
Branch taxation	(13)
Foreign tax credits (withholding taxes)	(20)
Other cross-border	6
Provision for income taxes and effective rate	$ 193	$ (66)	$ 192
Percent
Taxes computed at U.S. statutory rates	21.00%	21.00%	21.00%
State income tax, net of federal tax (as a percent)		0.20%	0.50%
Statutory tax rate difference		(2.60%)	2.80%
Changes in valuation allowances		0.20%	(1.80%)
Branch taxation	(1.70%)
Foreign tax credits (withholding taxes)	(2.80%)
Other cross-border	0.80%
Provision for income taxes and effective rate	26.30%	(12.40%)	25.20%
Other foreign jurisdictions
Amount
Statutory tax rate difference	$ 42
Percent
Statutory tax rate difference	5.70%
Brazil
Amount
Statutory tax rate difference	$ 8
Other	$ 8
Percent
Statutory tax rate difference	1.10%
Other	1.10%
United Kingdom
Amount
Changes in valuation allowances	$ 23
Percent
Changes in valuation allowances	3.10%
Luxembourg
Amount
Changes in valuation allowances	$ (19)
Percent
Changes in valuation allowances	(2.60%)
United States
Amount
Other	$ 4
Percent
Other	0.60%