Accounting Policies - Narrative (Details) - USD ($) $ in Millions	Oct. 03, 2015	Jan. 03, 2015
Accounting Policies [Abstract]
Obligations placed in accounts payable tracking system	$ 396	$ 236
Obligations sold by participating suppliers	$ 312	$ 184

Amount of payables financed by suppliers that had been placed on the accounts payable tracking system which facilitates participating suppliers' ability to finance payment obligations from the company with designated third party financial institutions.

No definition available.

Name:	k_PayablesFinancedByParticipatingSuppliers
Namespace Prefix:	k_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant