Income Taxes - Schedule of Reconciliation of the Income Tax Provisions Based on its Domicile and Statutory Rate 2025 (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Amount
Provision for income taxes at the Irish statutory tax rate	$ 1,190
Changes in unrecognized tax benefits	121
Total income tax expense	$ 1,009	$ 742	$ 541
Percent
Provision for income taxes at the Irish statutory tax rate	25.00%	25.00%	25.00%
State and local income taxes, net of federal income tax effect		0.70%	0.60%
Other		(0.10%)	0.10%
Changes in valuation allowances		(0.10%)	(2.50%)
Statutory tax rate		(9.30%)	(11.20%)
Changes in unrecognized tax benefits	2.50%	2.30%	2.60%
Effective tax rate	21.20%	21.40%	17.10%
United States
Amount
State and local income taxes, net of federal income tax effect	$ 83
Effect of cross-border tax laws	(60)
Other	$ (2)
Percent
State and local income taxes, net of federal income tax effect	1.70%
Effect of cross-border tax laws	(1.30%)
Other	0.00%
Bermuda
Amount
Other	$ (1)
Deferred tax adjustment	(143)
Changes in valuation allowances	$ 114
Percent
Other	0.00%
Deferred tax adjustment	(0.030)
Changes in valuation allowances	2.40%
Singapore
Amount
Other	$ (37)
Incentive	(120)
Statutory tax rate	$ (101)
Percent
Other	(0.80%)
Incentive	(0.025)
Statutory tax rate	(2.10%)
Other foreign jurisdictions
Amount
Statutory tax rate	$ (5)
Percent
Statutory tax rate	(0.10%)
Ireland
Amount
Other	$ (30)
Percent
Other	(0.60%)