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Restructuring - Additional Information (Details) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 USD ($) | Jun. 30, 2024 USD ($) facility | Sep. 30, 2023 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2023 USD ($)
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges | $ 4 |  | $ 16 | $ 40 | $ 76
Aggregate charges incurred since inception | 187 |  |  | 187 |
Organizational Realignment Plan |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges | 1 |  |  | 32 |
Restructuring-related charges | 2 |  |  | 10 |
Aggregate charges incurred since inception | 42 |  |  | 42 |
Number of facilities to be consolidated | facility |  | 5 |  |  |
Net charge on sale leaseback |  | $ 6 |  |  |
Organizational Realignment Plan | Other charges |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Estimated aggregate restructuring and restructuring-related charges | 4 |  |  | 4 |
Organizational Realignment Plan | Minimum |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Estimated aggregate restructuring and restructuring-related charges | 75 |  |  | 75 |
Organizational Realignment Plan | Minimum | Severance and termination costs |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Estimated aggregate restructuring and restructuring-related charges | 60 |  |  | 60 |
Organizational Realignment Plan | Minimum | Office space reductions |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Estimated aggregate restructuring and restructuring-related charges | 11 |  |  | 11 |
Organizational Realignment Plan | Maximum |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Estimated aggregate restructuring and restructuring-related charges | 90 |  |  | 90 |
Organizational Realignment Plan | Maximum | Severance and termination costs |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Estimated aggregate restructuring and restructuring-related charges | 70 |  |  | 70 |
Organizational Realignment Plan | Maximum | Office space reductions |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Estimated aggregate restructuring and restructuring-related charges | 16 |  |  | 16 |
Network Optimization Project |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges | 0 |  | 3 | 3 | 5
Restructuring-related charges | 5 |  | 4 | 13 | 12
Aggregate charges incurred since inception | 39 |  |  | 39 |
Network Optimization Project | Minimum |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Estimated aggregate restructuring and restructuring-related charges | 37 |  |  | 37 |
Expected cash expenditures |  |  |  | 35 |
Network Optimization Project | Minimum | Severance and termination costs |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Estimated aggregate restructuring and restructuring-related charges | 8 |  |  | 8 |
Network Optimization Project | Minimum | Industrial site reductions |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Estimated aggregate restructuring and restructuring-related charges | 29 |  |  | 29 |
Network Optimization Project | Maximum |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Estimated aggregate restructuring and restructuring-related charges | 49 |  |  | 49 |
Expected cash expenditures |  |  |  | 44 |
Network Optimization Project | Maximum | Severance and termination costs |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Estimated aggregate restructuring and restructuring-related charges | 11 |  |  | 11 |
Network Optimization Project | Maximum | Industrial site reductions |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Estimated aggregate restructuring and restructuring-related charges | 38 |  |  | 38 |
Project Phoenix |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges | 1 |  | 10 | 2 | 63
Restructuring-related charges | 2 |  | 5 | 7 | 15
Aggregate charges incurred since inception | 106 |  |  | 106 |
Project Phoenix | Other charges |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Estimated aggregate restructuring and restructuring-related charges | 5 |  |  | 5 |
Project Phoenix | Minimum |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Estimated aggregate restructuring and restructuring-related charges | 100 |  |  | 100 |
Expected cash expenditures |  |  |  | 95 |
Project Phoenix | Minimum | Severance and termination costs |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Estimated aggregate restructuring and restructuring-related charges | 80 |  |  | 80 |
Project Phoenix | Minimum | Office space reductions |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Estimated aggregate restructuring and restructuring-related charges | 15 |  |  | 15 |
Project Phoenix | Maximum |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Estimated aggregate restructuring and restructuring-related charges | 130 |  |  | 130 |
Expected cash expenditures |  |  |  | 120 |
Project Phoenix | Maximum | Severance and termination costs |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Estimated aggregate restructuring and restructuring-related charges | 105 |  |  | 105 |
Project Phoenix | Maximum | Office space reductions |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Estimated aggregate restructuring and restructuring-related charges | 20 |  |  | 20 |
Other Restructuring and Restructuring-Related Charges |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges | 2 |  | 3 | 3 | 8
Restructuring-related charges | $ 9 |  | $ 16 | $ 17 | $ 28

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