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v3.24.3

Revenues and Gross Profit - Additional Information (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Revenue Recognition [Line Items] |  |  |  |  |
Gross profit | $ 599 | $ 676 | $ 1,388 | $ 1,539 |
Performance obligations, description of timing |  |  | Performance obligations within paving service agreements are satisfied over time, primarily ranging from one day to two years. Customer payments for the paving operations are based on a contractual billing schedule and are typically "paid-when-paid", meaning the Company is paid once the customer is paid. |  |
Future revenues from unsatisfied performance obligations | 322 | 268 | $ 322 | 268 |
Service revenues | 1,889 | 1,994 | 4,905 | 5,169 |
Revenue recognized from contract liabilities | 7 | 5 | 9 | 10 |
Retainage on contracts | 15 |  | 15 |  | $ 17
Interproduct Revenues |  |  |  |  |
Revenue Recognition [Line Items] |  |  |  |  |
Service revenues | (82) | (80) | (184) | (184) |
West Group | Operating Segments |  |  |  |  |
Revenue Recognition [Line Items] |  |  |  |  |
Service revenues | 958 | 1,104 | 2,464 | 2,851 |
Service |  |  |  |  |
Revenue Recognition [Line Items] |  |  |  |  |
Service revenues |  |  | $ 307 | 307 |
Service | CALIFORNIA and COLORADO | West Group |  |  |  |  |
Revenue Recognition [Line Items] |  |  |  |  |
Service revenues | $ 164 | 173 |  |  |
Cement | Operating Segments |  |  |  |  |
Revenue Recognition [Line Items] |  |  |  |  |
Gross profit |  | 109 |  | 249 |
Service revenues |  | 199 |  | 565 |
Ready Mixed Concrete | Operating Segments |  |  |  |  |
Revenue Recognition [Line Items] |  |  |  |  |
Gross profit |  | 34 |  | 80 |
Service revenues |  | 285 |  | 777 |
Ready Mixed Concrete | Operating Segments | Interproduct Revenues |  |  |  |  |
Revenue Recognition [Line Items] |  |  |  |  |
Service revenues |  | $ 62 |  | $ 167 |
Minimum | Service |  |  |  |  |
Revenue Recognition [Line Items] |  |  |  |  |
Performance obligations, period |  |  | 1 day |  |
Maximum | Service |  |  |  |  |
Revenue Recognition [Line Items] |  |  |  |  |
Performance obligations, period |  |  | 2 years |  |

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