Reinsurance - Assets and Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Assets
Premiums receivable, direct	$ 206	$ 189
Premiums Receivable, assumed	14	12
Premiums receivable, ceded	(259)	(241)
Premiums receivable, net of reinsurance	(39)	(40)
Reinsurance recoverable, net of allowance for credit losses, ceded	10,648	10,753
Reinsurance recoverable, net of allowance for credit losses, net	10,648	10,753
Total assets, direct	206	189
Total assets, assumed	14	12
Total assets, ceded	10,389	10,512
Premiums Receivable And Reinsurance Recoverables, Including Reinsurance Premium Paid	10,609	10,713
Liabilities
Future policy benefits and contract owner account balances, direct	45,138	45,302
Future policy benefits and contract owner account balances, assumed	3,890	4,054
Future policy benefits and contract owner account balances, net	49,028	49,356
Total liabilities, direct	45,138	45,302
Total liabilities, assumed	3,890	4,054
Total liabilities, net	49,028	49,356
Effects of Reinsurance [Line Items]
Future policy benefits and contract owner account balances, assumed	$ 3,890	$ 4,054

The consideration due to the assuming enterprise as of the balance sheet date under the terms of the reinsurance contract in exchange for the right to receive reimbursement from such entity for covered claims and expenses.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479838/944-20-50-3