v3.26.3
Investments - Schedule of Rollforward of Mortgagees Allowance for Credit Loss (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]        
Beginning Balance $ 176 $ 137 $ 133 $ 121
Charge offs, net of recoveries 0 (7) (10) (13)
Reductions for mortgages disposed 0 0 0 (2)
Additions from purchase of PCD mortgage loans 0 0 0 0
Provision (release) 15 13 68 37
Ending Balance 191 143 191 143
Financing receivables, accrued interest receivable 56 43 56 43
Accrued interest written off 1 2 1 2
Apartment        
Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]        
Beginning Balance 50 18 32 23
Charge offs, net of recoveries 0 0 (1) 0
Reductions for mortgages disposed 0 0 0 (1)
Additions from purchase of PCD mortgage loans 0 0 0 0
Provision (release) (23) 17 (4) 13
Ending Balance 27 35 27 35
Hotel        
Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]        
Beginning Balance 15 10 11 7
Charge offs, net of recoveries 0 (4) 0 (4)
Reductions for mortgages disposed 0 0 0 0
Additions from purchase of PCD mortgage loans 0 0 0 0
Provision (release) 3 10 7 13
Ending Balance 18 16 18 16
Office        
Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]        
Beginning Balance 31 42 28 44
Charge offs, net of recoveries 0 (3) (9) (9)
Reductions for mortgages disposed 0 0 0 0
Additions from purchase of PCD mortgage loans 0 0 0 0
Provision (release) 42 (15) 54 (11)
Ending Balance 73 24 73 24
Retail        
Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]        
Beginning Balance 26 24 17 19
Charge offs, net of recoveries 0 0 0 0
Reductions for mortgages disposed 0 0 0 (1)
Additions from purchase of PCD mortgage loans 0 0 0 0
Provision (release) (6) (13) 3 (7)
Ending Balance 20 11 20 11
Warehouse        
Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]        
Beginning Balance 33 26 27 20
Charge offs, net of recoveries 0 0 0 0
Reductions for mortgages disposed 0 0 0 0
Additions from purchase of PCD mortgage loans 0 0 0 0
Provision (release) (9) 6 (3) 12
Ending Balance 24 32 24 32
Other        
Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]        
Beginning Balance 2 2 2 3
Charge offs, net of recoveries 0 0 0 0
Reductions for mortgages disposed 0 0 0 0
Additions from purchase of PCD mortgage loans 0 0 0 0
Provision (release) (1) 1 (1) 0
Ending Balance 1 3 1 3
Residential Mortgage        
Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]        
Beginning Balance 19 15 16 5
Charge offs, net of recoveries 0 0 0 0
Reductions for mortgages disposed 0 0 0 0
Additions from purchase of PCD mortgage loans 0 0 0 0
Provision (release) 9 7 12 17
Ending Balance $ 28 $ 22 $ 28 $ 22