XML 88 R71.htm IDEA: XBRL DOCUMENT
v3.22.0.1

BUSINESS SEGMENTS - Depreciation and Amortization (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Segment Reporting Information [Line Items] |  |  |
Depreciation, amortization, and other | $ 220 | $ 346 | $ 341
Total segment | U.S. & Canada |  |  |
Segment Reporting Information [Line Items] |  |  |
Depreciation, amortization, and other | 92 | 209 | 218
Total segment | International |  |  |
Segment Reporting Information [Line Items] |  |  |
Depreciation, amortization, and other | 106 | 113 | 96
Unallocated corporate and other |  |  |
Segment Reporting Information [Line Items] |  |  |
Depreciation, amortization, and other | $ 22 | $ 24 | $ 27

X
- Definition Depreciation, Amortization and Other, Excluding Capitalized Contract Cost Amortization + References No definition available. + Details
Name: | mar_DepreciationAmortizationandOtherExcludingCapitalizedContractCostAmortization
Namespace Prefix: | mar_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=mar_USAndCanadaSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=mar_InternationalSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_CorporateNonSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |