Statutory Financial Data and Restrictions - Schedule of Statutory Financial Data and Restrictions (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Statutory Accounting Practices [Line Items]
Statutory net income (loss)	$ 4,412	$ 3,335	$ 3,779
Statutory capital and surplus	28,664	29,300
Aggregate minimum required statutory capital and surplus	10,350	9,504
Domestic
Statutory Accounting Practices [Line Items]
Statutory net income (loss)	2,785	1,594	1,912
Statutory capital and surplus	17,874	17,001
Aggregate minimum required statutory capital and surplus	3,880	3,763
Foreign
Statutory Accounting Practices [Line Items]
Statutory net income (loss)	1,627	1,741	$ 1,867
Statutory capital and surplus	10,790	12,299
Aggregate minimum required statutory capital and surplus	$ 6,470	$ 5,741