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Business Developments and Risks and Uncertainties (Schedule of Results of Operations from Discontinued Operation) (Detail) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Revenues |  |
Revenues | $ 24 | $ 32
Cost of sales | 11 | 17
Total revenues from discontinued operations | 13 | 15
Expenses: |  |
Operating | 13 | 20
Interest | 1 | 1
Increase (decrease) on loss on disposal group | (2) | (3)
Total expenses from discontinued operations | 12 | 18
Income (loss) before income taxes from discontinued operations | 1 | (3)
Provision (benefit) for income taxes from discontinued operations | 0 | 0
Income (loss) from discontinued operations, net of income taxes | $ 1 | $ (3)

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