v3.26.1
Segment Information - Schedule of Adjusted Operating Income (Loss) (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Revenues:    
Premiums $ 881 $ 862
Net investment income 766 739
Policy fees and other income 156 158
Total revenues 1,777 1,786
Less:    
Benefits and other changes in policy reserves 1,224 1,217
Amortization of deferred acquisition costs and intangibles 55 60
Interest expense 25 26
Provision (benefit) for income taxes 31 36
Operating Segments    
Less:    
Reportable segment adjusted operating income (loss) available to Genworth Financial, Inc.’s common stockholders 108 74
Enact | Operating Segments    
Revenues:    
Premiums 243 245
Net investment income 72 63
Policy fees and other income 3 2
Total revenues 318 310
Less:    
Benefits and other changes in policy reserves 37 31
Cash flow assumption updates 0 0
Actual variances from expected experience  0 0
Amortization of deferred acquisition costs and intangibles 2 2
Interest expense 12 12
Other segment expenses 47 49
Provision (benefit) for income taxes 47 47
Adjusted operating income (loss) attributable to noncontrolling interests 33 32
Reportable segment adjusted operating income (loss) available to Genworth Financial, Inc.’s common stockholders 140 137
Closed Block | Operating Segments    
Revenues:    
Premiums 636 615
Net investment income 691 671
Policy fees and other income 150 156
Total revenues 1,477 1,442
Less:    
Benefits and other changes in policy reserves 1,189 1,188
Cash flow assumption updates 8 (1)
Actual variances from expected experience  36 5
Amortization of deferred acquisition costs and intangibles 51 57
Interest expense 0 0
Other segment expenses 228 265
Provision (benefit) for income taxes (3) (9)
Adjusted operating income (loss) attributable to noncontrolling interests 0 0
Reportable segment adjusted operating income (loss) available to Genworth Financial, Inc.’s common stockholders $ (32) $ (63)