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Business Segments - Summary of Operating Results by Reportable Segment (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Revenue: |  |  |  |
Total revenue | $ 594 | $ 539 | $ 1,178 | $ 1,012
Operating profit (loss): |  |  |  |
Total operating profit (loss) | 36 | 29 | 71 | 52
United States [Member] |  |  |  |
Revenue: |  |  |  |
Total revenue | 456 | 408 | 883 | 742
Operating profit (loss): |  |  |  |
Total operating profit (loss) | 29 | 32 | 52 | 46
Canada [Member] |  |  |  |
Revenue: |  |  |  |
Total revenue | 66 | 72 | 149 | 154
Operating profit (loss): |  |  |  |
Total operating profit (loss) | 3 | 6 | 11 | 13
International [Member] |  |  |  |
Revenue: |  |  |  |
Total revenue | 72 | 59 | 146 | 116
Operating profit (loss): |  |  |  |
Total operating profit (loss) | $ 4 | $ (9) | $ 8 | $ (7)

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