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v3.25.1

Goodwill - Changes in Goodwill (Detail) $ in Millions | 3 Months Ended
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Mar. 31, 2025 USD ($)
Goodwill [Line Items] |
Balance at January 1, 2025 | $ 3,767
Adjustments to purchase price allocations | 6
Balance at March 31, 2025 | 3,773
East Group |
Goodwill [Line Items] |
Balance at January 1, 2025 | 1,031
Adjustments to purchase price allocations | (1)
Balance at March 31, 2025 | 1,030
West Group |
Goodwill [Line Items] |
Balance at January 1, 2025 | 2,736
Adjustments to purchase price allocations | 7
Balance at March 31, 2025 | $ 2,743

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