v3.25.2
Income Taxes (Income Taxes And Related Effective Tax Rates) (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Disclosure Income Taxes Income Taxes And Related Effective Tax Rates [Abstract]        
Income (loss) from continuing operations before income taxes $ (56) $ (253) $ (118) $ (340)
Provision (benefit) for income taxes $ 0 $ 0 $ 0 $ 0
Effective tax rate 0.00% 0.00% 0.00% 0.00%