DERIVATIVE INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Fair value measurements on a nonrecurring basis (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023	Dec. 30, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of property plant and equipment	$ 60	$ 0
Property, Plant and Equipment, Net	3,101		$ 3,212
North America | North America Frozen Supply Chain Network Reconfiguration
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property, Plant and Equipment, Net	62
North America | North America Frozen Supply Chain Network Reconfiguration | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property, Plant, and Equipment, Fair Value Disclosure	41
North America | COGS | North America Frozen Supply Chain Network Reconfiguration
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of property plant and equipment	21
Europe | European Cereal Supply Chain Network Reconfiguration
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property, Plant and Equipment, Net	99
Europe | European Cereal Supply Chain Network Reconfiguration | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property, Plant, and Equipment, Fair Value Disclosure	60
Europe | COGS | European Cereal Supply Chain Network Reconfiguration
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of property plant and equipment	$ 39