XML 72 R56.htm IDEA: XBRL DOCUMENT
v3.20.4

Restructuring and Cost Reduction Activities Project K Total Program Cost Percentage by Reportable Segment Narrative (Details) - Project K | 12 Months Ended
--- | ---
Jan. 02, 2021
North America |
Restructuring Cost and Reserve [Line Items] |
Restructuring and related cost expected cost allocation | 65.00%
Europe |
Restructuring Cost and Reserve [Line Items] |
Restructuring and related cost expected cost allocation | 21.00%
Latin America |
Restructuring Cost and Reserve [Line Items] |
Restructuring and related cost expected cost allocation | 4.00%
AMEA |
Restructuring Cost and Reserve [Line Items] |
Restructuring and related cost expected cost allocation | 6.00%
Corporate |
Restructuring Cost and Reserve [Line Items] |
Restructuring and related cost expected cost allocation | 4.00%

X
- Definition Allocation amount expected to be recognized in earnings for the specified restructuring cost. + References No definition available. + Details
Name: | k_RestructuringAndRelatedCostExpectedCostAllocation
Namespace Prefix: | k_
Data Type: | num:percentItemType
Balance Type: | na
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_RestructuringCostAndReserveLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

X
- Details
Name: | us-gaap_RestructuringPlanAxis=k_ProjectKMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=k_AMEAMember
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: |