Business and Basis of Presentation (Details) $ / shares in Units, $ in Millions |
1 Months Ended | 3 Months Ended | |||
|---|---|---|---|---|---|
|
Apr. 30, 2026
USD ($)
$ / shares
shares
|
Mar. 31, 2026
USD ($)
segment
$ / shares
shares
|
Mar. 31, 2025
USD ($)
|
Sep. 18, 2025
USD ($)
|
Apr. 01, 2013 |
|
| Product Information [Line Items] | |||||
| Number of reportable segments | segment | 2 | ||||
| Stock repurchase program, authorized amount | $ 350 | ||||
| Shares repurchased (in shares) | shares | 7,713,425 | ||||
| Average price ( in usd per share) | $ / shares | $ 8.61 | ||||
| Shares repurchase cost | $ 67 | $ 46 | |||
| Subsequent Event | |||||
| Product Information [Line Items] | |||||
| Shares repurchased (in shares) | shares | 2,197,918 | ||||
| Average price ( in usd per share) | $ / shares | $ 8.53 | ||||
| Stock repurchase program, remaining authorized amount | $ 175 | ||||
| Genworth Holdings | |||||
| Product Information [Line Items] | |||||
| Ownership percentage of subsidiary | 100.00% | ||||