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v3.19.3.a.u2

Revenue Recognition (Narrative) (Details) - USD ($) | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Chipotle Rewards [Member] |  |
Unearned revenue | $ 0 | $ 0

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- Definition Contract With Customer Liability, Unearned Revenue + References No definition available. + Details
Name: | cmg_ContractWithCustomerLiabilityUnearnedRevenue
Namespace Prefix: | cmg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
Name: | srt_ProductOrServiceAxis=cmg_ChipotleRewardsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |