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v3.20.4

OPERATING PROPERTY AND EQUIPMENT, NET - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Property, Plant and Equipment [Abstract] |  |  |
Operating equipment depreciation expense | $ 123 | $ 118 | $ 103

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- Definition Operating Equipment Depreciation + References No definition available. + Details
Name: | r_OperatingEquipmentDepreciation
Namespace Prefix: | r_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration