Sale of Accounts Receivable (Notes)	12 Months Ended
Dec. 30, 2017
Transfers and Servicing of Financial Assets [Abstract]
Transfers and Servicing of Financial Assets [Text Block]	SALE OF ACCOUNTS RECEIVABLE During 2016, The Company initiated a program in which a customer could extend their payment terms in exchange for the elimination of early payment discounts (Extended Terms Program). In 2016, the Company entered into a Receivable Sales Agreement (Monetization Program) and a separate U.S. accounts receivable securitization program (Securitization Program), both described below, which are intended to directly offset the impact the Extended Terms Program would have on the days-sales-outstanding (DSO) metric that is critical to the effective management of the Company's accounts receivable balance and overall working capital. The Company has no retained interest in the receivables sold, however the Company does have collection and administrative responsibilities for the sold receivables. The Company has not recorded any servicing assets or liabilities as of December 30, 2017 and December 31, 2016 for these agreements as the fair value of these servicing arrangements as well as the fees earned were not material to the financial statements. Monetization Program In March 2016, the Company entered into a Monetization Program to sell, on a revolving basis, certain trade accounts receivable balances to third party financial institutions. Transfers under this agreement are accounted for as sales of receivables resulting in the receivables being de-recognized from the Consolidated Balance Sheet. The Monetization Program provides for the continuing sale of certain receivables on a revolving basis until terminated by either party; however the maximum receivables that may be sold at any time is $800 million. Accounts receivable sold of $601 million and $562 million remained outstanding under this arrangement as of December 30, 2017 and December 31, 2016, respectively. During 2017 and 2016, approximately $2.2 billion and $1.5 billion of accounts receivable have been sold via the Monetization Program, respectively. The proceeds from these sales of receivables are included in cash from operating activities in the Consolidated Statement of Cash Flows. The recorded net loss on sale of receivables is approximately $11 million and $5 million for the years ended December 30, 2017 and December 31, 2016, respectively, and is included in Other income and expense. Securitization Program In July 2016, the Company entered into the Securitization Program with a third party financial institution. Under the program, the Company received cash consideration of up to $600 million and a deferred purchase price asset for the remainder of the purchase price. Transfers under the Securitization Program were accounted for as sales of receivables resulting in the receivables being de-recognized from the Consolidated Balance Sheet. This Securitization Program utilized Kellogg Funding Company (Kellogg Funding), a wholly-owned subsidiary of the Company. Kellogg Funding's sole business consisted of the purchase of receivables, from its parent or other subsidiary and subsequent transfer of such receivables and related assets to financial institutions. Although Kellogg Funding is included in the Company's consolidated financial statements, it is a separate legal entity with separate creditors who will be entitled, upon its liquidation, to be satisfied out of Kellogg Funding assets prior to any assets or value in Kellogg Funding becoming available to the Company or its subsidiaries. The assets of Kellogg Funding are not available to pay creditors of the Company or its subsidiaries. The Securitization Program was structured to expire in July 2018, but was terminated at the end of 2017. The Company terminated the accounts receivable securitization program as a result of declining customer interest in an extended-terms program, and recent changes to accounting guidelines that (i) no longer treat the advances from the securitization in a way that preserves Cash Flow, defined as Cash From Operations less Capital Expenditure, and (ii) require burdensome administration, including daily reconciliations of receivables sold and collected under the program. Terminating the securitization will have no impact on our Cash Flow. During the years ended December 30, 2017 and December 31, 2016, $2.6 billion and $839 million of accounts receivable were sold via the Securitization Program, respectively. As of December 30, 2017, approximately $433 million of accounts receivable sold to Kellogg Funding under the Securitization Program remained outstanding, for which the Company received net cash proceeds of approximately $412 million and a deferred purchase price asset of approximately $21 million. As of December 31, 2016, approximately $292 million of accounts receivable sold to Kellogg Funding under the Securitization Program remained outstanding, for which the Company received net cash proceeds of approximately $255 million and a deferred purchase price asset of approximately $37 million. The portion of the purchase price for the receivables which was not paid in cash by the financial institutions is a deferred purchase price asset, which is paid to Kellogg Funding as payments on the receivables are collected from customers. The deferred purchase price asset represents a beneficial interest in the transferred financial assets and is recognized at fair value as part of the sale transaction. The deferred purchase price asset is included in Other current assets on the Consolidated Balance Sheet. The proceeds from these sales of receivables are included in cash from operating activities in the Consolidated Statement of Cash Flows. The recorded net loss on sale of receivables is approximately $7 million for the year end December 30, 2017 and was not material for year ended December 31, 2016. The recorded net loss on sale of receivables is included in Other income and expense. Other programs Additionally, from time to time certain of the Company's foreign subsidiaries will transfer, without recourse, accounts receivable balances of certain customers to financial institutions. These transactions are accounted for as sales of the receivables resulting in the receivables being de-recognized from the Consolidated Balance Sheet. During the years ended December 30, 2017 and December 31, 2016, $237 million and $164 million of accounts receivable were sold via these programs, respectively. Accounts receivable sold of $86 million and $124 million remained outstanding under these programs as of December 30, 2017 and December 31, 2016, respectively. The proceeds from these sales of receivables are included in cash from operating activities in the Consolidated Statement of Cash Flows. The recorded net loss on the sale of these receivables is included in Other income and expense and is not material.

SALE OF ACCOUNTS RECEIVABLE

During 2016, The Company initiated a program in which a customer could extend their payment terms in exchange for the elimination of early payment discounts (Extended Terms Program).

In 2016, the Company entered into a Receivable Sales Agreement (Monetization Program) and a separate U.S. accounts receivable securitization program (Securitization Program), both described below, which are intended to directly offset the impact the Extended Terms Program would have on the days-sales-outstanding (DSO) metric that is critical to the effective management of the Company's accounts receivable balance and overall working capital.

The Company has no retained interest in the receivables sold, however the Company does have collection and administrative responsibilities for the sold receivables. The Company has not recorded any servicing assets or liabilities as of December 30, 2017 and December 31, 2016 for these agreements as the fair value of these servicing arrangements as well as the fees earned were not material to the financial statements.

Monetization Program

In March 2016, the Company entered into a Monetization Program to sell, on a revolving basis, certain trade accounts receivable balances to third party financial institutions. Transfers under this agreement are accounted for as sales of receivables resulting in the receivables being de-recognized from the Consolidated Balance Sheet. The Monetization Program provides for the continuing sale of certain receivables on a revolving basis until terminated by either party; however the maximum receivables that may be sold at any time is $800 million. Accounts receivable sold of $601 million and $562 million remained outstanding under this arrangement as of December 30, 2017 and December 31, 2016, respectively. During 2017 and 2016, approximately $2.2 billion and $1.5 billion of accounts receivable have been sold via the Monetization Program, respectively. The proceeds from these sales of receivables are included in cash from operating activities in the Consolidated Statement of Cash Flows. The recorded net loss on sale of receivables is approximately $11 million and $5 million for the years ended December 30, 2017 and December 31, 2016, respectively, and is included in Other income and expense.

Securitization Program

In July 2016, the Company entered into the Securitization Program with a third party financial institution. Under the program, the Company received cash consideration of up to $600 million and a deferred purchase price asset for the remainder of the purchase price. Transfers under the Securitization Program were accounted for as sales of receivables resulting in the receivables being de-recognized from the Consolidated Balance Sheet. This Securitization Program utilized Kellogg Funding Company (Kellogg Funding), a wholly-owned subsidiary of the Company. Kellogg Funding's sole business consisted of the purchase of receivables, from its parent or other subsidiary and subsequent transfer of such receivables and related assets to financial institutions. Although Kellogg Funding is included in the Company's consolidated financial statements, it is a separate legal entity with separate creditors who will be entitled, upon its liquidation, to be satisfied out of Kellogg Funding assets prior to any assets or value in Kellogg Funding becoming available to the Company or its subsidiaries. The assets of Kellogg Funding are not available to pay creditors of the Company or its subsidiaries. The Securitization Program was structured to expire in July 2018, but was terminated at the end of 2017. The Company terminated the accounts receivable securitization program as a result of declining customer interest in an extended-terms program, and recent changes to accounting guidelines that (i) no longer treat the advances from the securitization in a way that preserves Cash Flow, defined as Cash From Operations less Capital Expenditure, and (ii) require burdensome administration, including daily reconciliations of receivables sold and collected under the program. Terminating the securitization will have no impact on our Cash Flow.

During the years ended December 30, 2017 and December 31, 2016, $2.6 billion and $839 million of accounts receivable were sold via the Securitization Program, respectively. As of December 30, 2017, approximately $433 million of accounts receivable sold to Kellogg Funding under the Securitization Program remained outstanding, for which the Company received net cash proceeds of approximately $412 million and a deferred purchase price asset of approximately $21 million. As of December 31, 2016, approximately $292 million of accounts receivable sold to Kellogg Funding under the Securitization Program remained outstanding, for which the Company received net cash proceeds of approximately $255 million and a deferred purchase price asset of approximately $37 million. The portion of the purchase price for the receivables which was not paid in cash by the financial institutions is a deferred purchase price asset, which is paid to Kellogg Funding as payments on the receivables are collected from customers. The deferred purchase price asset represents a beneficial interest in the transferred financial assets and is recognized at fair value as part of the sale transaction. The deferred purchase price asset is included in Other current assets on the Consolidated Balance Sheet. The proceeds from these sales of receivables are included in cash from operating activities in the Consolidated Statement of Cash Flows. The recorded net loss on sale of receivables is approximately $7 million for the year end December 30, 2017 and was not material for year ended December 31, 2016. The recorded net loss on sale of receivables is included in Other income and expense.

Other programs

Additionally, from time to time certain of the Company's foreign subsidiaries will transfer, without recourse, accounts receivable balances of certain customers to financial institutions. These transactions are accounted for as sales of the receivables resulting in the receivables being de-recognized from the Consolidated Balance Sheet. During the years ended December 30, 2017 and December 31, 2016, $237 million and $164 million of accounts receivable were sold via these programs, respectively. Accounts receivable sold of $86 million and $124 million remained outstanding under these programs as of December 30, 2017 and December 31, 2016, respectively. The proceeds from these sales of receivables are included in cash from operating activities in the Consolidated Statement of Cash Flows. The recorded net loss on the sale of these receivables is included in Other income and expense and is not material.