SUBSEQUENT EVENTS (Details) $ in Millions	Dec. 30, 2023 USD ($)
North America | North American Frozen Supply Chain Network Program
Subsequent Event [Line Items]
Restructuring and related cost, expected cost	$ 75
North America | Cash Charges | North American Frozen Supply Chain Network Program
Subsequent Event [Line Items]
Restructuring and related cost, expected cost	20
North America | Employee related cost | North American Frozen Supply Chain Network Program
Subsequent Event [Line Items]
Restructuring and related cost, expected cost	10
North America | Other cost | North American Frozen Supply Chain Network Program
Subsequent Event [Line Items]
Restructuring and related cost, expected cost	10
North America | Asset Impairments, Accelerate Depreciation and Write-offs | North American Frozen Supply Chain Network Program
Subsequent Event [Line Items]
Restructuring and related cost, expected cost	55
Europe | European Cereal Supply Chain Network Plan
Subsequent Event [Line Items]
Restructuring and related cost, expected cost	120
Europe | Cash Charges | European Cereal Supply Chain Network Plan
Subsequent Event [Line Items]
Restructuring and related cost, expected cost	80
Europe | Employee related cost | European Cereal Supply Chain Network Plan
Subsequent Event [Line Items]
Restructuring and related cost, expected cost	50
Europe | Other cost | European Cereal Supply Chain Network Plan
Subsequent Event [Line Items]
Restructuring and related cost, expected cost	30
Europe | Asset Impairments, Accelerate Depreciation and Write-offs | European Cereal Supply Chain Network Plan
Subsequent Event [Line Items]
Restructuring and related cost, expected cost	$ 40