v3.26.1
Revisions of Previously Issued Financial Statements - Equity Statements (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Stockholders' Equity [Roll Forward]            
Balance at beginning of period $ 396 $ 402 $ 233 $ 223 $ 402 $ 223
Adjustment due to error correction of Net income (loss) 65 22 38 13 87 51
Adjustment due to error correction of Other Comprehensive income (6) (14) 41 (5) (20) 35
Balance at end of period 464 396 318 233 464 318
As Reported            
Stockholders' Equity [Roll Forward]            
Adjustment due to error correction of Net income (loss)     44     58
Adjustment due to error correction of Other Comprehensive income     41     35
Balance at end of period     352     352
Adjustments            
Stockholders' Equity [Roll Forward]            
Adjustment due to error correction of Net income (loss)     (6)     (7)
Adjustment due to error correction of Other Comprehensive income     0     0
Balance at end of period     (27)     (27)
Retained Earnings            
Stockholders' Equity [Roll Forward]            
Balance at beginning of period 306 299 203 188 299 188
Adjustment due to error correction of Net income (loss) 65 22 39 14    
Balance at end of period 371 306 242 203 371 242
Retained Earnings | As Reported            
Stockholders' Equity [Roll Forward]            
Balance at end of period     276     276
Retained Earnings | Adjustments            
Stockholders' Equity [Roll Forward]            
Adjustment due to error correction of Net income (loss)           (7)
Adjustment due to error correction of Other Comprehensive income           0
Balance at end of period     (27)     (27)
Accumulated Other Comprehensive Income (Loss)            
Stockholders' Equity [Roll Forward]            
Balance at beginning of period 23 38 (22) (17) 38 (17)
Adjustment due to error correction of Other Comprehensive income (6) (15) 40 (5) (21) 35
Balance at end of period $ 17 $ 23 18 $ (22) $ 17 18
Accumulated Other Comprehensive Income (Loss) | As Reported            
Stockholders' Equity [Roll Forward]            
Balance at end of period     18     18
Accumulated Other Comprehensive Income (Loss) | Adjustments            
Stockholders' Equity [Roll Forward]            
Adjustment due to error correction of Net income (loss)           0
Adjustment due to error correction of Other Comprehensive income           0
Balance at end of period     $ 0     $ 0