Kellogg (K) 10-K 25 Feb 15 2014 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
In Billions, except Share data, unless otherwise specified	Jan. 03, 2015	Jan. 31, 2015	Jun. 28, 2014
Document and Entity Information [Abstract]
Document Type	10-K
Amendment Flag	FALSE
Document Period End Date	3-Jan-15
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Trading Symbol	K
Entity Registrant Name	KELLOGG CO
Entity Central Index Key	55067
Current Fiscal Year End Date	-2
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		356,571,864
Entity Public Float			$18.60

Consolidated_Statement_of_Inco

Consolidated Statement of Income (USD $)	12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Consolidated Statement of Income
Net sales	$14,580	$14,792	$14,197
Cost of goods sold	9,517	8,689	8,763
Selling, general and administrative expense	4,039	3,266	3,872
Operating profit	1,024	2,837	1,562
Interest expense	209	235	261
Other income (expense), net	10	4	24
Income before income taxes	825	2,606	1,325
Income taxes	186	792	363
Earnings (loss) from joint ventures	-6	-6	-1
Net income	633	1,808	961
Net income (loss) attributable to noncontrolling interests	1	1	0
Net income attributable to Kellogg Company	$632	$1,807	$961
Per share amounts:
Basic EPS	$1.76	$4.98	$2.68
Diluted EPS	$1.75	$4.94	$2.67
Dividend per share	$1.90	$1.80	$1.74

Consolidated_Statement_of_Comp

Consolidated Statement of Comprehensive Income (USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Consolidated Statement of Comprehensive Income [Abstract]
Net income	$633	$1,808	$961
Other comprehensive income, before-tax:
Foreign currency translation adjustments, before-tax	-231	-24	64
Cash flow hedges, before-tax:
Unrealized gain (loss) on cash flow hedges, before-tax	-35	11	-5
Reclassification to net earnings, before-tax	-10	-6	14
Postretirement and Postemployment benefit amounts arising during the period, before-tax:
Net experience gain (loss), before-tax	-8	17	-7
Prior service credit (cost), before-tax	10	9	-26
Postretirement and postemployment benefits reclassification to net income, before-tax:
Net experience loss, before-tax	3	5	5
Prior service cost, before-tax	10	13	12
Other comprehensive income (loss), before-tax	-261	25	57
Other comprehensive income (loss), tax (expense) or benefit
Foreign currency translation adjustments, tax (expense) or benefit	-32	0	0
Cash flow hedges, tax effect:
Unrealized gain (loss) on cash flow hedges, tax (expense) or benefit	18	-1	2
Reclassification to net earnings, tax (expense) or benefit	-2	0	5
Postretirement and postemployment benefit amounts arising during the period, tax effect:
Net experience gain (loss), tax (expense) or benefit	3	-6	3
Prior service credit (cost), tax (expense) or benefit	-3	-2	9
Postretirement and postemployment benefits reclassification to net income, tax effect:
Net experience loss, tax (expense) or benefit	-1	-2	-2
Prior service cost, tax (expense) or benefit	-3	-4	-4
Other comprehensive income (loss), tax (expense) or benefit	-16	-15	3
Other comprehensive income (loss), after tax
Foreign currency translation adjustments, after-tax	-263	-24	64
Cash flow hedges, after-tax:
Unrealized gain (loss) on cash flow hedges, after-tax	-17	10	-3
Reclassification to net income	-8	-6	9
Postretirement and postemployment benefit amounts arising during the period, after-tax:
Net experience gain (loss), after-tax	-5	11	-4
Prior service credit (cost), after-tax	7	7	-17
Postretirement and postemployment benefits reclassification to net income, after-tax:
Net experience loss, after-tax	2	3	3
Prior service cost, after-tax	7	9	8
Other comprehensive income, after-tax	-277	10	60
Comprehensive income	$356	$1,818	$1,021

Consolidated_Balance_Sheet

Consolidated Balance Sheet (USD $)	Jan. 03, 2015	Dec. 28, 2013
In Millions, unless otherwise specified
Current assets
Cash and cash equivalents	$443	$273
Accounts receivable, net	1,276	1,424
Inventories	1,279	1,248
Other current assets	342	322
Total current assets	3,340	3,267
Property, net	3,769	3,856
Goodwill	4,971	5,051
Other intangibles, net	2,295	2,367
Other assets	778	933
Total assets	15,153	15,474
Current liabilities
Current maturities of long-term debt	607	289
Notes payable	828	739
Accounts payable	1,528	1,432
Other current liabilities	1,401	1,375
Total current liabilities	4,364	3,835
Long-term debt	5,935	6,330
Deferred income taxes	726	928
Pension liability	777	277
Other liabilities	500	497
Commitments and contingencies
Equity
Common stock, $.25 par value, 1,000,000,000 shares authorized Issued: 420,125,937 shares in 2014 and 419,923,540 shares in 2013	105	105
Capital in excess of par value	678	626
Retained earnings	6,689	6,749
Treasury stock, at cost 64,123,181 shares in 2014 and 57,121,760 shares in 2013	-3,470	-2,999
Accumulated other comprehensive income (loss)	-1,213	-936
Total Kellogg Company equity	2,789	3,545
Noncontrolling interests	62	62
Total equity	2,851	3,607
Total liabilities and equity	$15,153	$15,474

Consolidated_Balance_Sheet_Par

Consolidated Balance Sheet (Parenthetical) (USD $)	Jan. 03, 2015	Dec. 28, 2013
In Millions, except Share data, unless otherwise specified
Consolidated Balance Sheet
Common stock, par value	$0.25	$0.25
Common stock, shares, issued	420,125,937	419,923,540
Common stock, shares authorized	1,000,000,000	1,000,000,000
Treasury stock, shares	64,123,181	57,121,760
Property, accumulated depreciation	$5,526	$5,501
Other intangibles, accumulated amortization	$43	$34

Consolidated_Statement_of_Equi

Consolidated Statement of Equity (USD $)	Total	Common Stock [Member]	Capital in Excess of Par Value [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total Kellogg Company Equity [Member]	Noncontrolling Interests [Member]	Total Comprehensive Income (Loss) [Member]
In Millions, except Share data
Balance, value at Dec. 31, 2011	$1,798	$105	$522	$5,305	($3,130)	($1,006)	$1,796	$2
Balance, shares at Dec. 31, 2011		419,000,000			62,000,000
Common stock repurchases, shares	1,000,000				1,000,000
Common stock repurchases, value	-63				-63		-63
Acquisition of noncontrolling interest	59		0				0	59
Net income (loss)	961			961			961	0	961
Dividends	-622			-622			-622
Other comprehensive income (loss)	60					60	60		60
Total comprehensive income	1,021
Stock compensation	36		36				36
Stock options exercised and other, shares		1,000,000			-5,000,000
Stock options exercised and other, value	236		15	-29	250		236
Balance, value at Dec. 29, 2012	2,465	105	573	5,615	-2,943	-946	2,404	61	1,021
Balance, shares at Dec. 29, 2012		420,000,000			58,000,000
Common stock repurchases, shares	9,000,000				9,000,000
Common stock repurchases, value	-544				-544		-544
Net income (loss)	1,808			1,807			1,807	1	1,808
Dividends	-653			-653			-653
Other comprehensive income (loss)	10					10	10		10
Total comprehensive income	1,818
Stock compensation	28		28				28
Stock options exercised and other, shares					-10,000,000
Stock options exercised and other, value	493		25	-20	488		493
Balance, value at Dec. 28, 2013	3,607	105	626	6,749	-2,999	-936	3,545	62	1,818
Balance, shares at Dec. 28, 2013		420,000,000			57,000,000
Common stock repurchases, shares	11,000,000				11,000,000
Common stock repurchases, value	-690				-690		-690
Net income (loss)	633			632			632	1	633
Dividends	-681			-680			-680	-1
Other comprehensive income (loss)	-277					-277	-277		-277
Total comprehensive income	356
Stock compensation	29		29				29
Stock options exercised and other, shares		0			-4,000,000
Stock options exercised and other, value	230		23	-12	219		230
Balance, value at Jan. 03, 2015	$2,851	$105	$678	$6,689	($3,470)	($1,213)	$2,789	$62	$356
Balance, shares at Jan. 03, 2015		420,000,000			64,000,000

Consolidated_Statement_of_Cash

Consolidated Statement of Cash Flows (USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Operating activities
Net income	$633	$1,808	$961
Adjustments to reconcile net income to operating cash flows:
Depreciation and amortization	503	532	448
Postretirement benefit plan (income) expense	803	-1,078	419
Deferred income taxes	-254	317	-159
Other	-88	25	-21
Postretirement benefit plan contributions	-53	-48	-51
Changes in operating assets and liabilities, net of acquisitions:
Trade receivables	131	-46	-65
Inventories	-30	116	-80
Accounts payable	96	30	208
Accrued income taxes	87	4	25
Accrued interest expense	-2	-9	-1
Accrued and prepaid advertising, promotion and trade allowances	-21	-30	97
Accrued salaries and wages	-7	61	15
All other current assets and liabilities	-5	125	-38
Net cash provided by (used in) operating activities	1,793	1,807	1,758
Investing activities
Additions to properties	-582	-637	-533
Acquisitions, net of cash acquired	0	0	-2,668
Other	9	-4	-44
Net cash provided by (used in) investing activities	-573	-641	-3,245
Financing activities
Net increase (reduction) of notes payable, with maturities less than or equal to 90 days	183	-524	779
Issuances of notes payable, with maturities greater than 90 days	1,030	640	724
Reductions of notes payable, with maturities greater than 90 days	-1,124	-442	-707
Issuances of long-term debt	952	645	1,727
Reductions of long-term debt	-960	-762	-750
Net issuances of common stock	217	475	229
Common stock repurchases	-690	-544	-63
Cash dividends	-680	-653	-622
Other	9	24	0
Net cash provided by (used in) financing activities	-1,063	-1,141	1,317
Effect of exchange rate changes on cash and cash equivalents	13	-33	-9
Increase (decrease) in cash and cash equivalents	170	-8	-179
Cash and cash equivalents at beginning of period	273	281	460
Cash and cash equivalents at end of period	$443	$273	$281

Accounting_Policies

Accounting Policies	12 Months Ended
	Jan. 03, 2015
Accounting Policies [Abstract]
Accounting Policies [Text Block]	Kellogg Company and Subsidiaries
	Notes to Consolidated Financial Statements
	NOTE 1
	ACCOUNTING POLICIES
	Basis of presentation
	The consolidated financial statements include the accounts of the Kellogg Company, those of the subsidiaries that it controls due to ownership of a majority voting interest and the accounts of the variable interest entities (VIEs) of which Kellogg Company is the primary beneficiary (Kellogg or the Company). The Company continually evaluates its involvement with VIEs to determine whether it has variable interests and is the primary beneficiary of the VIE. When these criteria are met, the Company is required to consolidate the VIE. The Company's share of earnings or losses of nonconsolidated affiliates is included in its consolidated operating results using the equity method of accounting when it is able to exercise significant influence over the operating and financial decisions of the affiliate. The Company uses the cost method of accounting if it is not able to exercise significant influence over the operating and financial decisions of the affiliate. Intercompany balances and transactions are eliminated.
	The Company's fiscal year normally ends on the Saturday closest to December 31 and as a result, a 53rd week is added approximately every sixth year. The Company's 2013 and 2012 fiscal years each contained 52 weeks and ended on December 28, 2013 and December 29, 2012, respectively. The Company's 2014 fiscal year ended on January 3, 2015, and included a 53rd week. While quarters normally consist of 13-week periods, the fourth quarter of fiscal 2014 included a 14th week.
	Use of estimates
	The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the periods reported. Actual results could differ from those estimates.
	Cash and cash equivalents
	Highly liquid investments with remaining stated maturities of three months or less when purchased are considered cash equivalents and recorded at cost.
	Accounts receivable
	Accounts receivable consists principally of trade receivables, which are recorded at the invoiced amount, net of allowances for doubtful accounts and prompt payment discounts. Trade receivables do not bear interest. The allowance for doubtful accounts represents management's estimate of the amount of probable credit losses in existing accounts receivable, as determined from a review of past due balances and other specific account data. Account balances are written off against the allowance when management determines the receivable is uncollectible. The Company does not have off-balance sheet credit exposure related to its customers.
	Inventories
	Inventories are valued at the lower of cost or market. Cost is determined on an average cost basis.
	Property
	The Company's property consists mainly of plants and equipment used for manufacturing activities. These assets are recorded at cost and depreciated over estimated useful lives using straight-line methods for financial reporting and accelerated methods, where permitted, for tax reporting. Major property categories are depreciated over various periods as follows (in years): manufacturing machinery and equipment 5-30; office equipment 4-5; computer equipment and capitalized software 3-7; building components 15-25; building structures 50. Cost includes interest associated with significant capital projects. Plant and equipment are reviewed for impairment when conditions indicate that the carrying value may not be recoverable. Such conditions include an extended period of idleness or a plan of disposal. Assets to be disposed of at a future date are depreciated over the remaining period of use. Assets to be sold are written down to realizable value at the time the assets are being actively marketed for sale and a sale is expected to occur within one year. As of year-end 2014 and 2013, the carrying value of assets held for sale was insignificant.
	Goodwill and other intangible assets
	Goodwill and indefinite-lived intangibles are not amortized, but are tested at least annually for impairment of value and whenever events or changes in circumstances indicate the carrying amount of the asset may be impaired. An intangible asset with a finite life is amortized on a straight-line basis over the estimated useful life.
	For the goodwill impairment test, the fair value of the reporting units are estimated based on market multiples. This approach employs market multiples based on earnings before interest, taxes, depreciation and amortization and earnings for companies that are comparable to the Company's reporting units. In the event the fair value determined using the market multiple approach is close to carrying value, the Company may supplement the fair value determination using discounted cash flows. The assumptions used for the impairment test are consistent with those utilized by a market participant performing similar valuations for the Company's reporting units.
	Similarly, impairment testing of other intangible assets requires a comparison of carrying value to fair value of that particular asset. Fair values of non-goodwill intangible assets are based primarily on projections of future cash flows to be generated from that asset. For instance, cash flows related to a particular trademark would be based on a projected royalty stream attributable to branded product sales, discounted at rates consistent with rates used by market participants.
	These estimates are made using various inputs including historical data, current and anticipated market conditions, management plans, and market comparables.
	Accounts payable
	Beginning in 2014, the Company has an agreement with a third party to provide an accounts payable tracking system which facilitates participating suppliers' ability to monitor and, if elected, sell to designated third-party financial institutions, payment obligations of the Company.  Participating suppliers may, at their sole discretion, make offers to sell one or more payment obligations of the Company prior to their scheduled due dates at a discounted price to participating financial institutions.  The Company's goal in entering into this agreement is to capture overall supplier savings, in the form of pricing, payment terms or vendor funding, created by facilitating suppliers' ability to sell receivables, while providing them with greater working capital flexibility. We have no economic interest in the sale of these suppliers' receivables and no direct financial relationship with the financial institutions concerning these services. The Company's obligations to its suppliers, including amounts due and scheduled payment dates, are not impacted by suppliers' decisions to sell amounts under this arrangement.  However, the Company's right to offset balances due from suppliers against payment obligations is restricted by this agreement for those payment obligations that have been sold by suppliers.  As of January 3, 2015, $236 million of the Company's outstanding payment obligations had been placed in the accounts payable tracking system, and participating suppliers had sold $184 million of those payment obligations to participating financial institutions.
	Revenue recognition
	The Company recognizes sales upon delivery of its products to customers. Revenue, which includes shipping and handling charges billed to the customer, is reported net of applicable provisions for discounts, returns, allowances, and various government withholding taxes. Methodologies for determining these provisions are dependent on local customer pricing and promotional practices, which range from contractually fixed percentage price reductions to reimbursement based on actual occurrence or performance. Where applicable, future reimbursements are estimated based on a combination of historical patterns and future expectations regarding specific in-market product performance.
	Advertising and promotion
	The Company expenses production costs of advertising the first time the advertising takes place. Advertising expense is classified in selling, general and administrative (SGA) expense.
	The Company classifies promotional payments to its customers, the cost of consumer coupons, and other cash redemption offers in net sales. The cost of promotional package inserts is recorded in cost of goods sold (COGS). Other types of consumer promotional expenditures are recorded in SGA expense.
	Research and development
	The costs of research and development (R&D) are expensed as incurred and are classified in SGA expense. R&D includes expenditures for new product and process innovation, as well as significant technological improvements to existing products and processes. The Company's R&D expenditures primarily consist of internal salaries, wages, consulting, and supplies attributable to time spent on R&D activities. Other costs include depreciation and maintenance of research facilities and equipment, including assets at manufacturing locations that are temporarily engaged in pilot plant activities.
	Stock-based compensation
	The Company uses stock-based compensation, including stock options, restricted stock, restricted stock units, and executive performance shares, to provide long-term performance incentives for its global workforce.
	The Company classifies pre-tax stock compensation expense principally in SGA expense within its corporate operations. Expense attributable to awards of equity instruments is recorded in capital in excess of par value in the Consolidated Balance Sheet.
	Certain of the Company's stock-based compensation plans contain provisions that accelerate vesting of awards upon retirement, disability, or death of eligible employees and directors. A stock-based award is considered vested for expense attribution purposes when the employee's retention of the award is no longer contingent on providing subsequent service. Accordingly, the Company recognizes compensation cost immediately for awards granted to retirement-eligible individuals or over the period from the grant date to the date retirement eligibility is achieved, if less than the stated vesting period.
	The Company recognizes compensation cost for stock option awards that have a graded vesting schedule on a straight-line basis over the requisite service period for the entire award.
	Corporate income tax benefits realized upon exercise or vesting of an award in excess of that previously recognized in earnings (“windfall tax benefit”) is recorded in other financing activities in the Consolidated Statement of Cash Flows. Realized windfall tax benefits are credited to capital in excess of par value in the Consolidated Balance Sheet. Realized shortfall tax benefits (amounts which are less than that previously recognized in earnings) are first offset against the cumulative balance of windfall tax benefits, if any, and then charged directly to income tax expense. The Company currently has sufficient cumulative windfall tax benefits to absorb arising shortfalls, such that earnings were not affected during the periods presented. Correspondingly, the Company includes the impact of pro forma deferred tax assets (i.e., the “as if” windfall or shortfall) for purposes of determining assumed proceeds in the treasury stock calculation of diluted earnings per share.
	Income taxes
	The Company recognizes uncertain tax positions based on a benefit recognition model. Provided that the tax position is deemed more likely than not of being sustained, the Company recognizes the largest amount of tax benefit that is greater than 50 percent likely of being ultimately realized upon settlement. The tax position is derecognized when it is no longer more likely than not of being sustained. The Company classifies income tax-related interest and penalties as interest expense and SGA expense, respectively, on the Consolidated Statement of Income. The current portion of the Company's unrecognized tax benefits is presented in the Consolidated Balance Sheet in other current assets and other current liabilities, and the amounts expected to be settled after one year are recorded in other assets and other liabilities.
	Income taxes are provided on the portion of foreign earnings that is expected to be remitted to and taxable in the United States.
	Derivative Instruments
	The fair value of derivative instruments is recorded in other current assets, other assets, other current liabilities or other liabilities. Gains and losses representing either hedge ineffectiveness, hedge components excluded from the assessment of effectiveness, or hedges of translational exposure are recorded in the Consolidated Statement of Income in other income (expense), net (OIE). In the Consolidated Statement of Cash Flows, settlements of cash flow and fair value hedges are classified as an operating activity; settlements of all other derivative instruments, including instruments for which hedge accounting has been discontinued, are classified consistent with the nature of the instrument.
	Cash flow hedges. Qualifying derivatives are accounted for as cash flow hedges when the hedged item is a forecasted transaction. Gains and losses on these instruments are recorded in other comprehensive income until the underlying transaction is recorded in earnings. When the hedged item is realized, gains or losses are reclassified from accumulated other comprehensive income (loss) (AOCI) to the Consolidated Statement of Income on the same line item as the underlying transaction.
	Fair value hedges. Qualifying derivatives are accounted for as fair value hedges when the hedged item is a recognized asset, liability, or firm commitment. Gains and losses on these instruments are recorded in earnings, offsetting gains and losses on the hedged item.
	Net investment hedges. Qualifying derivative and nonderivative financial instruments are accounted for as net investment hedges when the hedged item is a nonfunctional currency investment in a subsidiary. Gains and losses on these instruments are included in foreign currency translation adjustments in AOCI.
	Derivatives not designated for hedge accounting. Gains and losses on these instruments are recorded in the Consolidated Statement of Income, on the same line item as the underlying hedged item.
	Other contracts. The Company periodically enters into foreign currency forward contracts and options to reduce volatility in the translation of foreign currency earnings to U.S. dollars. Gains and losses on these instruments are recorded in OIE, generally reducing the exposure to translation volatility during a full-year period.
	Foreign currency exchange risk. The Company is exposed to fluctuations in foreign currency cash flows related primarily to third-party purchases, intercompany transactions and when applicable, nonfunctional currency denominated third-party debt. The Company is also exposed to fluctuations in the value of foreign currency investments in subsidiaries and cash flows related to repatriation of these investments. Additionally, the Company is exposed to volatility in the translation of foreign currency denominated earnings to U.S. dollars. Management assesses foreign currency risk based on transactional cash flows and translational volatility and may enter into forward contracts, options, and currency swaps to reduce fluctuations in long or short currency positions. Forward contracts and options are generally less than 18 months duration. Currency swap agreements are established in conjunction with the term of underlying debt issues.
	For foreign currency cash flow and fair value hedges, the assessment of effectiveness is generally based on changes in spot rates. Changes in time value are reported in OIE.
	Interest rate risk. The Company is exposed to interest rate volatility with regard to future issuances of fixed rate debt and existing and future issuances of variable rate debt. The Company periodically uses interest rate swaps, including forward-starting swaps, to reduce interest rate volatility and funding costs associated with certain debt issues, and to achieve a desired proportion of variable versus fixed rate debt, based on current and projected market conditions.
	Fixed-to-variable interest rate swaps are accounted for as fair value hedges and the assessment of effectiveness is based on changes in the fair value of the underlying debt, using incremental borrowing rates currently available on loans with similar terms and maturities.
	Price risk. The Company is exposed to price fluctuations primarily as a result of anticipated purchases of raw and packaging materials, fuel, and energy. The Company has historically used the combination of long-term contracts with suppliers, and exchange-traded futures and option contracts to reduce price fluctuations in a desired percentage of forecasted raw material purchases over a duration of generally less than 18 months.
	Certain commodity contracts are accounted for as cash flow hedges, while others are marked to market through earnings. The assessment of effectiveness for exchange-traded instruments is based on changes in futures prices. The assessment of effectiveness for over-the-counter transactions is based on changes in designated indices.
	Pension benefits, nonpension postretirement and postemployment benefits
	The Company sponsors a number of U.S. and foreign plans to provide pension, health care, and other welfare benefits to retired employees, as well as salary continuance, severance, and long-term disability to former or inactive employees.
	The recognition of benefit expense is based on actuarial assumptions, such as discount rate, long-term rate of compensation increase, long-term rate of return on plan assets and health care cost trend rate, and is reported in COGS and SGA expense on the Consolidated Statement of Income.
	Postemployment benefits. The Company recognizes an obligation for postemployment benefit plans that vest or accumulate with service. Obligations associated with the Company's postemployment benefit plans, which are unfunded, are included in other current liabilities and other liabilities on the Consolidated Balance Sheet. All gains and losses are recognized over the average remaining service period of active plan participants.
	Postemployment benefits that do not vest or accumulate with service or benefits to employees in excess of those specified in the respective plans are expensed as incurred.
	Pension and nonpension postretirement benefits. The Company recognizes actuarial gains and losses in operating results in the year in which they occur. Experience gains and losses are recognized annually as of the measurement date, which is the Company's fiscal year-end, or when remeasurement is otherwise required under generally accepted accounting principles. The Company uses the fair value of plan assets to calculate the expected return on plan assets.
	Reportable segments are allocated service cost and amortization of prior service cost. All other components of pension and postretirement benefit expense, including interest cost, expected return on assets, and experience gains and losses are considered unallocated corporate costs and are not included in the measure of reportable segment operating results. See Note 16 for more information on reportable segments.
	Assumed mortality rates of plan participants are a critical estimate in measuring the expected payments a participant will receive over their lifetime and the amount of expense recognized. On October 27, 2014, the Society of Actuaries' (SOA) published updated mortality tables and an updated improvement scale, which both reflect improved longevity. In determining the appropriate mortality assumptions as of January 3, 2015, the Company considered the SOA's updated mortality tables as well as other mortality information available from the Social Security Administration to develop assumptions aligned with the Company's expectation of future improvement rates.
	Management reviews the Company's expected long-term rates of return annually; however, the benefit trust investment performance for one particular year does not, by itself, significantly influence this evaluation. The expected rates of return are generally not revised provided these rates fall between the 25th and 75th percentile of expected long-term returns, as determined by the Company's modeling process.
	For defined benefit pension and postretirement plans, the Company records the net overfunded or underfunded position as a pension asset or pension liability on the Consolidated Balance Sheet.
	New accounting standards
Presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists. In July 2013, the Financial Accounting Standards Board (FASB) issued an Accounting Standards Update (ASU) which provides guidance on financial statement presentation of unrecognized tax benefits when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists. This ASU is expected to eliminate diversity in practice resulting from lack of previously existing guidance. It applies to all entities with unrecognized tax benefits that also have tax loss or tax credit carryforwards in the same tax jurisdiction as of the reporting date. The Company adopted the revised guidance in 2014 with no significant impact to the Consolidated Financial Statements.
Reporting of amounts reclassified out of Accumulated Other Comprehensive Income. In February 2013, the FASB issued an updated accounting standard requiring entities to present information about reclassifications out of accumulated other comprehensive income in a single note or on the face of the financial statements. The Company adopted the updated standard in 2013.
Indefinite-lived intangible asset impairment testing. In July 2012, the FASB issued an ASU to allow entities the option to first assess qualitative factors to determine whether it is necessary to perform the quantitative indefinite-lived intangible asset impairment test. Under the updated standard an entity would not be required to perform the quantitative impairment test unless the entity determines, based on a qualitative assessment, that it is more likely than not that an indefinite-lived intangible asset is impaired. The Company adopted the revised guidance in 2013, with no impact to the Consolidated Financial Statements.
Accounting standards to be adopted in future periods
In May 2014, the FASB issued an ASU which provides guidance for accounting for revenue from contracts with customers. The core principle of this ASU is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration the entity expects to be entitled in exchange for those goods or services. To achieve that core principle, an entity would be required to apply the following five steps: 1) identify the contract(s) with a customer; 2) identify the performance obligations in the contract; 3) determine the transaction price; 4) allocate the transaction price to the performance obligations in the contract and 5) recognize revenue when (or as) the entity satisfies a performance obligation. The ASU is effective for fiscal years, and interim periods within those years, beginning after December 15, 2016. Early adoption is not permitted. Entities will have the option to apply the final standard retrospectively or use a modified retrospective method, recognizing the cumulative effect of the ASU in retained earnings at the date of initial application. An entity will not restate prior periods if it uses the modified retrospective method, but will be required to disclose the amount by which each financial statement line item is affected in the current reporting period by the application of the ASU as compared to the guidance in effect prior to the change, as well as reasons for significant changes. The Company will adopt the updated standard in the first quarter of 2017. The Company is currently evaluating the impact that implementing this ASU will have on its financial statements and disclosures, as well as whether it will use the retrospective or modified retrospective method of adoption.

Goodwill_and_Other_Intangible_

Goodwill and Other Intangible Assets	12 Months Ended
	Jan. 03, 2015
Acquisitions, Goodwill and Other Intangible Assets [Abstract]
Acquisitions, Goodwill and Other Intangible Assets [Text Block]	NOTE 2
	GOODWILL AND OTHER INTANGIBLE ASSETS
	Pringles® acquisition
	On May 31, 2012, the Company completed its acquisition of the Pringles® business (Pringles) from The Procter & Gamble Company (P&G) for $2.695 billion, or $2.683 billion net of cash and cash equivalents, subject to certain purchase price adjustments, which resulted in a reduction of the purchase price by approximately $15 million to $2.668 billion net of cash and cash equivalents. The acquisition was accounted for under the purchase method and was financed through a combination of cash on hand, and short-term and long-term debt. The assets and liabilities of Pringles are included in the Consolidated Balance Sheet as of January 3, 2015 and December 28, 2013 and the results of the Pringles operations subsequent to the acquisition date are included in the Consolidated Statement of Income.
	The final acquired assets and assumed liabilities include the following:
	(millions)				31-May-12
	Accounts receivable, net			$	128
	Inventories				103
	Other prepaid assets				18
	Property				317
	Goodwill				1,319
	Other intangibles:
		Definite-lived intangible assets			79
		Brand			776
	Other assets:
		Deferred income taxes			23
		Other			16
	Notes payable				-3
	Accounts payable				-9
	Other current liabilities				-24
	Other liabilities				-75
				$	2,668
	Goodwill of $645 million is expected to be deductible for statutory tax purposes.
	Goodwill is calculated as the excess of the purchase price over the fair value of the net assets recognized. The goodwill recorded as part of the acquisition primarily reflects the value of providing an established platform to leverage the Company's existing brands in the international snacks category, synergies expected to arise from the combined brand portfolios, as well as any intangible assets that do not qualify for separate recognition.
	For the years ended January 3, 2015 and December 28, 2013, the Company incurred integration-related costs as part of the Pringles acquisition as follows: $20 million ($46 million in 2013) recorded in SGA, $22 million ($15 million in 2013) recorded in COGS and $1 million ($5 million in 2013) in net sales. Transaction fees and other integration-related costs incurred through December 29, 2012 were as follows: $73 million recorded in SGA, $3 million recorded in COGS and $5 million in fees for a bridge financing facility which are recorded in OIE.
	Changes in the carrying amount of goodwill are presented in the following table.
	Changes in the carrying amount of goodwill
			U.S.							North
			Morning			U.S.		U.S.		America				Latin		Asia		Consoli-
	(millions)		Foods			Snacks		Specialty		Other		Europe		America		Pacific		dated
	29-Dec-12	$	133		$	3,767	$	82	$	280	$	438	$	92	$	246	$	5,038
	Pringles goodwill		-			-		-		-		10		-		3		13
	Other goodwill		-			12		-		-		-		-		-		12
	Currency translation adjustment		-			-		-		-2		4		-3		-11		-12
	28-Dec-13	$	133		$	3,779	$	82	$	278	$	452	$	89	$	238	$	5,051
	Currency translation adjustment		-			-		-		-5		-63		-6		-6		-80
	3-Jan-15	$	133		$	3,779	$	82	$	273	$	389	$	83	$	232	$	4,971
	Intangible assets subject to amortization
	(millions)
			U.S.							North
			Morning			U.S.		U.S.		America				Latin		Asia		Consoli-
	Gross carrying amount		Foods*			Snacks*		Specialty		Other		Europe*		America*		Pacific		dated
	29-Dec-12	$	8		$	65	$	-	$	5	$	41	$	6	$	10	$	135
	Currency translation adjustment		-			-		-		-		1		-		-		1
	28-Dec-13	$	8		$	65	$	-	$	5	$	42	$	6	$	10	$	136
	Currency translation adjustment		-			-		-		-		-4		-		-		-4
	3-Jan-15	$	8		$	65	$	-	$	5	$	38	$	6	$	10	$	132
	Accumulated Amortization
	29-Dec-12	$	8		$	7	$	-	$	3	$	1	$	6	$	-	$	25
	Amortization		-			4		-		1		3		-		1		9
	28-Dec-13	$	8		$	11	$	-	$	4	$	4	$	6	$	1	$	34
	Amortization		-			5		-		-		3		-		1		9
	3-Jan-15	$	8		$	16	$	-	$	4	$	7	$	6	$	2	$	43
	Intangible assets subject to amortization, net
	29-Dec-12	$	-		$	58	$	-	$	2	$	40	$	-	$	10	$	110
	Amortization		-			-4		-		-1		-3		-		-1		-9
	Currency translation adjustment		-			-		-		-		1		-		-		1
	28-Dec-13	$	-		$	54	$	-	$	1	$	38	$	-	$	9	$	102
	Amortization (a)		-			-5		-		-		-3		-		-1		-9
	Currency translation adjustment		-			-		-		-		-4		-		-		-4
	3-Jan-15	$	-		$	49	$	-	$	1	$	31	$	-	$	8	$	89
	* Certain fully amortized intangible assets which were no longer utilized by the Company have been written off and revised in prior period presentation. The impact to the reporting segments are as follows (millions): U.S. Morning Foods - $20; U.S. Snacks - $5; Europe - $2; Latin America - $1.
	(a) The currently estimated aggregate amortization expense for each of the next five succeeding fiscal periods is approximately $9 million per year.
	Intangible assets not subject to amortization
(millions)
		U.S.							North
		Morning			U.S.		U.S.	America					Latin		Asia		Consoli-
(millions)		Foods		Snacks			Specialty		Other		Europe	America			Pacific		dated
29-Dec-12	$	63		$	1,625	$	-	$	95	$	466	$	-	$	-	$	2,249
Currency translation adjustment		-			-		-		-		16		-		-		16
28-Dec-13	$	63		$	1,625	$	-	$	95	$	482	$	-	$	-	$	2,265
Currency translation adjustment		-			-		-		-		-59		-		-		-59
3-Jan-15	$	63		$	1,625	$	-	$	95	$	423	$	-	$	-	$	2,206

Exit_or_Disposal_Activities

Exit or Disposal Activities	12 Months Ended
	Jan. 03, 2015
Exit or Disposal Activities [Abstract]
Exit or Disposal Activities [Text Block]	NOTE 3
	RESTRUCTURING AND COST REDUCTION ACTIVITIES
	The Company views its continued spending on restructuring and cost reduction activities as part of its ongoing operating principles to provide greater visibility in achieving its long-term profit growth targets. Initiatives undertaken are currently expected to recover cash implementation costs within a five-year period of completion. Upon completion (or as each major stage is completed in the case of multi-year programs), the project begins to deliver cash savings and/or reduced depreciation.
	Project K
	The most recent and largest program that is currently active is Project K, a four-year efficiency and effectiveness program announced in November 2013. The program is expected to generate a significant amount of savings that will be invested in key strategic areas of focus for the business. The Company expects that this investment will drive future growth in revenues, gross margin, operating profit, and cash flow.
	The focus of the program will be to strengthen existing businesses in core markets, increase growth in developing and emerging markets, and drive an increased level of value-added innovation. The program is expected to provide a number of benefits, including an optimized supply chain infrastructure, the implementation of global business services, and a new global focus on categories.
	The Company currently anticipates that the program will result in total pre-tax charges, once all phases are approved and implemented, of $1.2 to $1.4 billion, with after-tax cash costs, including incremental capital expenditures, estimated to be $900 million to $1.1 billion. The Company currently expects the charges will consist of asset-related costs totaling $450 to $500 million which will consist primarily of asset impairments, accelerated depreciation and other exit-related costs; employee-related costs totaling $425 to $475 million which will include severance, pension and other termination benefits; and other costs totaling $325 to $425 million which will consist primarily of charges related to the design and implementation of global business capabilities. A significant portion of other costs are the result of the implementation of global business service centers which are intended to simplify and standardize business support processes.
	The Company currently expects that total pre-tax charges related to Project K will impact reportable segments as follows: U.S. Morning Foods (approximately 18%), U.S. Snacks (approximately 12%), U.S. Specialty (approximately 1%), North America Other (approximately 5%), Europe (approximately 13%), Latin America (approximately 3%), Asia-Pacific (approximately 6%), and Corporate (approximately 42%). A majority of the costs impacting Corporate relate to additional initiatives to be approved and executed in the future. When these initiatives are fully defined and approved, the Company will update estimated costs by reportable segment as needed.
	Since inception of Project K, the Company has recognized charges of $506 million that have been attributed to the program. The charges were comprised of $2 million being recorded as a reduction of revenue, $326 million being recorded in COGS and $178 million recorded in SGA.
	All Projects
	During 2014, the Company recorded $298 million of charges associated with all cost reduction initiatives. The charges were comprised of $2 million being recorded as a reduction of revenue, $152 million being recorded in COGS and $144 million recorded in SGA expense.
	The Company recorded $250 million of costs in 2013 associated with cost reduction initiatives. The charges were comprised of $195 million being recorded in COGS and $55 million recorded in SGA expense.
	During 2012, the Company recorded $56 million of costs associated with cost reduction initiatives. The charges were comprised of $43 million being recorded in COGS and $13 million recorded in SGA expense.
	The tables below provide the details for the charges incurred during 2014, 2013 and 2012 and program costs to date for all programs currently active as of January 3, 2015.
									Program costs to date
	(millions)		2014		2013		2012		3-Jan-15
	Employee related costs	$	90	$	114	$	-	$	197
	Asset related costs		37		10		4		43
	Asset impairment		21		70		17		87
	Other costs		150		56		35		179
	Total	$	298	$	250	$	56	$	506
									Program costs to date
	(millions)		2014		2013		2012		3-Jan-15
	U.S. Morning Foods	$	60	$	109	$	16	$	160
	U.S. Snacks		57		30		10		76
	U.S. Specialty		3		5		1		6
	North America Other		18		11		6		27
	Europe		80		27		3		99
	Latin America		8		5		2		12
	Asia Pacific		37		32		18		61
	Corporate		35		31		-		65
	Total	$	298	$	250	$	56	$	506
	Employee related costs consisted of severance and pension charges. Asset impairments were recorded for fixed assets that were determined to be impaired and were written down to their estimated fair value. See Note 12 for more information. Asset related costs consist primarily of accelerated depreciation. Other costs incurred consist primarily of third-party incremental costs related to the development and implementation of global business capabilities.
	At January 3, 2015 total exit cost reserves were $110 million, related to severance payments and other costs of which a substantial portion will be paid in 2015 and 2016. The following table provides details for exit cost reserves.
			Employee Related		Asset		Asset Related		Other
	(millions)		Costs		Impairment		Costs		Costs		Total
	Liability as of December 28, 2013	$	66	$	-	$	-	$	12	$	78
	2014 restructuring charges		90		21		37		150		298
	Cash payments		-84		-		-24		-148		-256
	Non-cash charges and other (a)		24		-21		-13		-		-10
	Liability as of January 3, 2015	$	96	$	-	$	-	$	14	$	110
	(a) Employee related non-cash charges consist of pension curtailment benefit.

Equity

Equity	12 Months Ended
	Jan. 03, 2015
Equity [Abstract]
Equity [Text Block]	NOTE 4
	EQUITY
	Earnings per share
	Basic earnings per share is determined by dividing net income attributable to Kellogg Company by the weighted average number of common shares outstanding during the period. Diluted earnings per share is similarly determined, except that the denominator is increased to include the number of additional common shares that would have been outstanding if all dilutive potential common shares had been issued. Dilutive potential common shares consist principally of employee stock options issued by the Company, and to a lesser extent, certain contingently issuable performance shares. Basic earnings per share is reconciled to diluted earnings per share in the following table:
				Net income	Average
				attributable to	shares			Earnings
	(millions, except per share data)			Kellogg Company	outstanding			per share
	2014
		Basic	$	632	358		$	1.76
		Dilutive potential common shares			2			-0.01
		Diluted	$	632	360		$	1.75
	2013
		Basic	$	1,807	363		$	4.98
		Dilutive potential common shares			2			-0.04
		Diluted	$	1,807	365		$	4.94
	2012
		Basic	$	961	358		$	2.68
		Dilutive potential common shares			2			-0.01
		Diluted	$	961	360		$	2.67
	The total number of anti-dilutive potential common shares excluded from the reconciliation for each period was (in millions): 2014-5.0; 2013-5.0; 2012-9.9.
	Stock transactions
	The Company issues shares to employees and directors under various equity-based compensation and stock purchase programs, as further discussed in Note 7. The number of shares issued during the periods presented was (in millions): 2014–4; 2013–10; 2012–5. The Company issued shares totaling less than one million in each of the years presented under Kellogg DirectTM , a direct stock purchase and dividend reinvestment plan for U.S. shareholders.
	In December 2012, the Company's board of directors approved a share repurchase program authorizing the repurchase of up to $300 million during 2013. In April 2013, the Company's board of directors approved an authorization to repurchase up to $1 billion in shares through April 2014. In February 2014, the Company's board of directors approved a new authorization to repurchase up to $1.5 billion in shares through December 2015. This authorization supersedes the April 2013 authorization and is intended to allow the Company to repurchase shares for general corporate purposes and to offset issuances for employee benefit programs. In May 2013, the Company entered into an Accelerated Share Repurchase (ASR) Agreement with a financial institution counterparty and paid $355 million for the repurchase of shares during the term of the Agreement which extended through August 2013. During the second quarter of 2013, 4.9 million shares were initially delivered to the Company and accounted for as a reduction to Kellogg Company equity. The transaction was completed during the third quarter, at which time the Company received 0.6 million additional shares. The total number of shares delivered upon settlement of the ASR was based upon the volume weighted average price of the Company's stock over the term of the agreement.
	During 2014, the Company repurchased 11 million shares of common stock for a total of $690 million. During 2013, the Company repurchased 9 million shares of common stock for a total of $544 million. During 2012, the Company repurchased 1 million shares of common stock at a total cost of $63 million.
	Comprehensive income
	Comprehensive income includes net income and all other changes in equity during a period except those resulting from investments by or distributions to shareholders. Other comprehensive income for all years presented consists of foreign currency translation adjustments, fair value adjustments associated with cash flow hedges and adjustments for net experience losses and prior service cost related to employee benefit plans.
	Reclassifications out of Accumulated Other Comprehensive Income (AOCI) for the year ended January 3, 2015 and December 28, 2013, consisted of the following:
	Details about AOCI		Amount reclassified from AOCI						Line item impacted
	components		2014					2013	within Income Statement
	(millions)
	Gains and losses on cash flow hedges:
	Foreign currency exchange contracts	$	-5				$	-10	COGS
	Foreign currency exchange contracts		-3					-2	SGA
	Interest rate contracts		-9					-4	Interest expense
	Commodity contracts		7					10	COGS
		$	-10				$	-6	Total before tax
			2					-	Tax (expense) benefit
		$	-8				$	-6	Net of tax
	Amortization of postretirement and postemployment benefits:
	Net experience loss	$	3				$	5	See Notes 8 and 9 for further details
	Prior service cost		10					13	See Notes 8 and 9 for further details
		$	13				$	18	Total before tax
			-4					-6	Tax (expense) benefit
		$	9				$	12	Net of tax
	Total reclassifications	$	1				$	6	Net of tax
	Accumulated other comprehensive income (loss) as of January 3, 2015 and December 28, 2013 consisted of the following:
				January 3,		December 28,
	(millions)			2015		2013
	Foreign currency translation adjustments		$	-1,119	$	-856
	Cash flow hedges — unrealized net gain (loss)			-24		1
	Postretirement and postemployment benefits:
		Net experience loss		-18		-15
		Prior service cost		-52		-66
	Total accumulated other comprehensive income (loss)		$	-1,213	$	-936

Leases_and_Other_Commitments

Leases and Other Commitments	12 Months Ended
	Jan. 03, 2015
Leases [Abstract]
Leases and Other Commitments [Text Block]	NOTE 5
	LEASES AND OTHER COMMITMENTS
	The Company's leases are generally for equipment and warehouse space. Rent expense on all operating leases was (in millions): 2014-$183; 2013-$174; 2012-$174. During 2014 and 2013, the Company entered into less than $1 million in capital lease agreements. In 2012, the Company entered into approximately $4 million in capital lease agreements to finance the purchase of equipment.
	At January 3, 2015, future minimum annual lease commitments under non-cancelable operating and capital leases were as follows:
			Operating		Capital
	(millions)		leases		leases
	2015	$	176	$	1
	2016		157		1
	2017		119		1
	2018		90		1
	2019		64		1
	2020 and beyond		115		1
	Total minimum payments	$	721	$	6
	Amount representing interest				-1
	Obligations under capital leases				5
	Obligations due within one year				-1
	Long-term obligations under capital leases			$	4
	The Company has provided various standard indemnifications in agreements to sell and purchase business assets and lease facilities over the past several years, related primarily to pre-existing tax, environmental, and employee benefit obligations. Certain of these indemnifications are limited by agreement in either amount and/or term and others are unlimited. The Company has also provided various “hold harmless” provisions within certain service type agreements. Because the Company is not currently aware of any actual exposures associated with these indemnifications, management is unable to estimate the maximum potential future payments to be made. At January 3, 2015, the Company had not recorded any liability related to these indemnifications.

Debt

Debt	12 Months Ended
	Jan. 03, 2015
Debt [Abstract]
Debt [Text Block]	NOTE 6
	DEBT
	The following table presents the components of notes payable at year end January 3, 2015 and December 28, 2013:
	(millions)			2014						2013
				Principal amount		Effective interest rate				Principal amount	Effective interest rate
	U.S. commercial paper		$	681		0.36	%		$	249	0.22	%
	Europe commercial paper			96		0.09				437	0.23
	Bank borrowings			51						53
	Total		$	828					$	739
	The following table presents the components of long-term debt at year end January 3, 2015 and December 28, 2013:
	(millions)				2014			2013
	(a)	7.45% U.S. Dollar Debentures due 2031		$	1,090		$	1,089
	(b)	4.0% U.S. Dollar Notes due 2020			842			974
	(c)	4.45% U.S. Dollar Notes due 2016			760			767
	(d)	1.75% Euro Notes due 2021			597			-
	(e)	1.875% U.S. Dollar Notes due 2016			504			505
	(f)	4.15% U.S. Dollar Notes due 2019			497			488
	(g)	3.25% U.S. Dollar Notes due 2018			410			411
	(h)	1.75% U.S. Dollar Notes due 2017			396			395
	(i)	3.125% U.S. Dollar Notes due 2022			357			682
	(j)	1.125% U.S. Dollar Notes due 2015			350			350
	(k)	2.05% Canadian Dollar Notes due 2017			259			-
	(l)	Floating-rate U.S. Dollar Notes due 2015			250			250
	(m)	2.75% U.S. Dollar Notes due 2023			210			398
	(n)	2.10% Canadian Dollar Notes due 2014			-			282
		Other			20			28
					6,542			6,619
	Less current maturities				-607			-289
	Balance at year end			$	5,935		$	6,330
	In March 2001, the Company issued long-term debt instruments, primarily to finance the acquisition of Keebler Foods Company, of which $1.1 billion of thirty-year 7.45% Debentures remain outstanding. The effective interest rate on the Debentures, reflecting issuance discount and hedge settlement, was 7.54%. The Debentures contain standard events of default and covenants, and can be redeemed in whole or in part by the Company at any time at prices determined under a formula (but not less than 100% of the principal amount plus unpaid interest to the redemption date).
	In December 2010, the Company issued $1.0 billion of ten-year 4.0% fixed rate U.S. Dollar Notes, using net proceeds from these Notes for incremental pension and postretirement benefit plan contributions and to retire a portion of its commercial paper. The effective interest rate on these Notes, reflecting issuance discount, hedge settlement and interest rate swaps, was 2.11% at January 3, 2015. In March 2014, the Company redeemed $150 million of the Notes. In connection with the debt redemption, the Company incurred $12 million of interest expense offset by $7 million of accelerated gains on interest rate swaps previously recorded in accumulated other comprehensive income, and incurred $1 million expense, recorded in Other Income, Expense (net), related to acceleration of fees on the redeemed debt and fees related to the tender offer. The Company entered into interest rate swaps in March 2013 and September 2014 with notional amounts totaling $400 million and $300 million, respectively, which effectively converted a portion of these Notes from a fixed rate to a floating rate obligation. These derivative instruments were designated as fair value hedges of the debt obligation. The fair value adjustment for the interest rate swaps was $3 million and $20 million, at January 3, 2015 and December 28, 2013, respectively, and was recorded as a decrease in the hedged debt balance.
	In May 2009, the Company issued $750 million of seven-year 4.45% fixed rate U.S. Dollar Notes, using net proceeds from these Notes to retire a portion of its commercial paper. The effective interest rate on these Notes, reflecting issuance discount, hedge settlement and interest rate swaps was 3.41% at January 3, 2015. The Company entered into interest rate swaps in February 2011 and March 2012 with notional amounts totaling $200 million and $550 million, respectively, which effectively converted these Notes from a fixed rate to a floating rate obligation. These derivative instruments were designated as fair value hedges of the debt obligation. In April 2013, the Company terminated all of the interest rate swaps. The unamortized gain of $11 million at January 3, 2015 will be amortized to interest expense over the remaining term of the Notes.
	In May 2014, the Company issued €500 million (approximately $597 million at January 3, 2015, which reflects the discount and translation adjustments) of seven-year 1.75% Euro Notes due 2021, using the proceeds from these Notes for general corporate purposes, which included repayment of a portion of the Company's commercial paper borrowings. The effective interest rate on the Notes, reflecting issuance discount and hedge settlement, was 2.18%. The Notes were designated as a net investment hedge of the Company's investment in its Europe subsidiary when issued.
	In November 2011, the Company issued $500 million of five-year 1.875% fixed rate U.S. Dollar Notes, using net proceeds from these Notes for general corporate purposes including repayment of a portion of its commercial paper. The effective interest rate on these Notes, reflecting issuance discount, hedge settlement and interest rate swaps was 1.58% at January 3, 2015. In March 2012, the Company entered into interest rate swaps which effectively converted these Notes from a fixed rate to a floating rate obligation. These derivative instruments were designated as fair value hedges of the debt obligation. In April 2013, the Company terminated all of the interest rate swaps. In May 2013, the Company entered into interest rate swaps which effectively converted these Notes from a fixed rate to a floating rate obligation. These derivative instruments were designated as fair value hedges of the debt obligation. In August 2014, the Company terminated all of the interest rate swaps. The unamortized gain of $4 million at January 3, 2015 will be amortized to interest expense over the remaining term of the Notes.
	In November 2009, the Company issued $500 million of ten-year 4.15% fixed rate U.S. Dollar Notes, using net proceeds from these Notes to retire a portion of its 6.6% U.S. Dollar Notes due 2011. The effective interest rate on these Notes, reflecting issuance discount, hedge settlement and interest rate swaps was 2.71% at January 3, 2015. In March 2012, the Company entered into interest rate swaps which effectively converted these Notes from a fixed rate to a floating rate obligation. These derivative instruments were designated as fair value hedges of the debt obligation. The fair value adjustment for the interest rate swaps was $2 million and $11 million, at January 3, 2015 and December 28, 2013, respectively, and was recorded as a decrease in the hedged debt balance.
	In May 2011, the Company issued $400 million of seven-year 3.25% fixed rate U.S. Dollar Notes, using net proceeds from these Notes for general corporate purposes including repayment of a portion of its commercial paper. The effective interest rate on these Notes, reflecting issuance discount, hedge settlement and interest rate swaps, was 1.83% at January 3, 2015. In October 2011, the Company entered into interest rate swaps which effectively converted these Notes from a fixed rate to a floating rate obligation. These derivative instruments were designated as fair value hedges of the debt obligation. During February and April 2013, the Company terminated all of the interest rate swaps, and the resulting unamortized gain of $13 million at January 3, 2015 will be amortized to interest expense over the remaining term of the Notes. In May 2013, the Company entered into interest rate swaps which effectively converted these Notes from a fixed rate to a floating rate obligation. These derivative instruments were designated as fair value hedges of the debt obligation. The fair value adjustment for the interest rate swaps was $3 million and $6 million, at January 3, 2015 and December 28, 2013, respectively, and was recorded as a decrease in the hedged debt balance.
	In May 2012, the Company issued $400 million of five-year 1.75% U.S. Dollar Notes, using net proceeds from these Notes for general corporate purposes, including financing a portion of the acquisition of Pringles. The effective interest rate on these Notes, reflecting issuance discount and interest rate swaps, was 1.32% at January 3, 2015. In March and May 2013, the Company entered into interest rate swaps with notional amounts totaling $400 million, w.hich effectively converted the Notes from a fixed rate to a floating rate obligation. These derivative instruments were designated as fair value hedges of the debt obligation. The fair value adjustment for the interest rate swaps was $3 million and $4 million, at January 3, 2015 and December 28, 2013, respectively, and was recorded as a decrease in the hedged debt balance.
	In May 2012, the Company issued $700 million of ten-year 3.125% U.S. Dollar Notes, using net proceeds from these Notes for general corporate purposes, including financing a portion of the acquisition of Pringles. The effective interest rate on these Notes, reflecting issuance discount and interest rate swaps, was 1.32% at January 3, 2015. In March 2014, the Company redeemed $342 million of the Notes. In connection with the debt redemption, the Company reduced interest expense by $2 million and incurred $2 million expense, recorded in Other Income, Expense (net), related to acceleration of fees on the redeemed debt and fees related to the tender offer. The Company entered into interest rate swaps in May 2013 and September 2014 with notional amounts totaling $200 million and $158 million, respectively, which effectively converted these Notes from a fixed rate to a floating rate obligation. These derivative instruments were designated as fair value hedges of the debt obligation. The fair value adjustment for the interest rate swaps was $1 million, recorded as an increase in the hedged debt balance at January 3, 2015 and $13 million, and was recorded as a decrease in the hedged debt balance at December 28, 2013.
	In May 2012, the Company issued $350 million of three-year 1.125% U.S. Dollar Notes, using net proceeds from these Notes for general corporate purposes, including financing a portion of the acquisition of Pringles. The effective interest rate on these Notes, reflecting issuance discount, was 1.16%.
	In May 2014, the Company issued Cdn. $300 million (approximately $259 million USD at January 3, 2015, which reflects the discount and translation adjustments) of three-year 2.05% Canadian Dollar Notes due 2017, using the proceeds from these Notes, together with cash on hand, to repay the Company's Cdn. $300 million, 2.10% Notes due 2014 at maturity. The effective interest rate on the Notes, reflecting issuance discount and hedge settlement, was 2.10%.
	In February 2013, the Company issued $250 million of floating-rate U.S. Dollar Notes bearing interest at LIBOR plus 0.23% due February 2015. The proceeds from these Notes were used for general corporate purposes, including, together with cash on hand, to repay a portion the Company's $750 million 4.25% U.S. Dollar Notes that matured in March 2013. The effective interest rate on these Notes was 0.46% at January 3, 2015.
	In February 2013, the Company issued $400 million of ten-year 2.75% U.S. Dollar Notes, using net proceeds from these Notes for general corporate purposes, including, together with cash on hand, to repay a portion of the Company's $750 million 4.25% U.S. Dollar Notes that matured in March 2013. The effective interest rate on these Notes, reflecting issuance discount and hedge settlement, was 2.74%. In March 2014, the Company redeemed $189 million of the Notes. In connection with the debt redemption, the Company reduced interest expense by $10 million, including $1 million of accelerated gains on interest rate swaps previously recorded in accumulated other comprehensive income, and incurred $2 million expense, recorded in Other Income, Expense (net), related to acceleration of fees on the redeemed debt and fees related to the tender offer.
	In May 2012, the Company issued Cdn. $300 million of two-year 2.10% fixed rate Canadian Dollar Notes, using net proceeds from these Notes for general corporate purposes, which included repayment of intercompany debt. This repayment resulted in cash available to be used for a portion of the acquisition of Pringles. The effective interest rate on these Notes, reflecting issuance discount, was 2.11%. The Company redeemed the Notes in May 2014..
	All of the Company's Notes contain customary covenants that limit the ability of the Company and its restricted subsidiaries (as defined) to incur certain liens or enter into certain sale and lease-back transactions and also contain a change of control provision.
	The Company and two of its subsidiaries (the Issuers) maintain a program under which the Issuers may issue euro-commercial paper notes up to a maximum aggregate amount outstanding at any time of $750 million or its equivalent in alternative currencies. The notes may have maturities ranging up to 364 days and will be senior unsecured obligations of the applicable Issuer. Notes issued by subsidiary Issuers will be guaranteed by the Company. The notes may be issued at a discount or may bear fixed or floating rate interest or a coupon calculated by reference to an index or formula. There was $96 million and $437 million outstanding under this program as of January 3, 2015 and December 28, 2013, respectively.
	At January 3, 2015, the Company had $2.2 billion of short-term lines of credit, virtually all of which were unused and available for borrowing on an unsecured basis. These lines were comprised principally of an unsecured Five-Year Credit Agreement, which the Company entered into in February 2014 and expires in 2019, replacing the Company's unsecured Four-year Credit Agreement, which would have expired in March 2015. The Five-Year Credit Agreement allows the Company to borrow, on a revolving credit basis, up to $2.0 billion, which includes the ability to obtain letters of credit in an aggregate stated amount up to $75 million and swingline loans in aggregate principal amounts up to $200 million in U.S. Dollars and $400 million in Euros. The agreement contains customary covenants and warranties, including specified restrictions on indebtedness, liens and a specified interest coverage ratio. If an event of default occurs, then, to the extent permitted, the administrative agent may terminate the commitments under the credit facility, accelerate any outstanding loans under the agreement, and demand the deposit of cash collateral equal to the lender's letter of credit exposure plus interest.
	The Company was in compliance with all covenants as of January 3, 2015.
	Scheduled principal repayments on long-term debt are (in millions): 2015–$607; 2016–$1,256; 2017–$661; 2018–$402; 2019–$501; 2020 and beyond–$3,121.
	Interest paid was (in millions): 2014–$209; 2013–$234; 2012–$254. Interest expense capitalized as part of the construction cost of fixed assets was (in millions): 2014–$5; 2013–$2; 2012–$2.

Stock_Compensation

Stock Compensation	12 Months Ended
	Jan. 03, 2015
Stock Compensation [Abstract]
Stock Compensation [Text Block]	NOTE 7
	STOCK COMPENSATION
	The Company uses various equity-based compensation programs to provide long-term performance incentives for its global workforce. Currently, these incentives consist principally of stock options, and to a lesser extent, executive performance shares, restricted stock units and restricted stock grants. The Company also sponsors a discounted stock purchase plan in the United States and matching-grant programs in several international locations. Additionally, the Company awards restricted stock to its outside directors. These awards are administered through several plans, as described within this Note.
	The 2013 Long-Term Incentive Plan (2013 Plan), approved by shareholders in 2013, permits awards to employees and officers in the form of incentive and non-qualified stock options, performance units, restricted stock or restricted stock units, and stock appreciation rights. The 2013 Plan, which replaced the 2009 Long-Term Incentive Plan (2009 Plan), authorizes the issuance of a total of (a) 22 million shares; plus (b) the total number of shares remaining available for future grants under the 2009 Plan. The total number of shares remaining available for issuance under the 2013 Plan will be reduced by two shares for each share issued pursuant to an award under the 2013 Plan other than a stock option or stock appreciation right, or potentially issuable pursuant to an outstanding award other than a stock option or stock appreciation right, which will in each case reduce the total number of shares remaining by one share for each share issued. The 2013 Plan includes several limitations on awards or payments to individual participants. Options granted under the 2013 and 2009 Plans generally vest over three years. At January 3, 2015, there were 20 million remaining authorized, but unissued, shares under the 2013 Plan.
	The Non-Employee Director Stock Plan (2009 Director Plan) was approved by shareholders in 2009 and allows each eligible non-employee director to receive shares of the Company's common stock annually. The number of shares granted pursuant to each annual award will be determined by the Nominating and Governance Committee of the Board of Directors. The 2009 Director Plan, which replaced the 2000 Non-Employee Director Stock Plan (2000 Director Plan), reserves 500,000 shares for issuance, plus the total number of shares as to which awards granted under the 2009 Director Plan or the 2000 Director Plans expire or are forfeited, terminated or settled in cash. Under both the 2009 and 2000 Director Plans, shares (other than stock options) are placed in the Kellogg Company Grantor Trust for Non-Employee Directors (the Grantor Trust). Under the terms of the Grantor Trust, shares are available to a director only upon termination of service on the Board. Under the 2009 Director Plan, awards were as follows (number of shares): 2014-23,890; 2013-26,504; 2012-26,940.
	The 2002 Employee Stock Purchase Plan was approved by shareholders in 2002 and permits eligible employees to purchase Company stock at a discounted price. This plan allows for a maximum of 2.5 million shares of Company stock to be issued at a purchase price equal to 95% of the fair market value of the stock on the last day of the quarterly purchase period. Total purchases through this plan for any employee are limited to a fair market value of $25,000 during any calendar year. At January 3, 2015, there were approximately 0.4 million remaining authorized, but unissued, shares under this plan. Shares were purchased by employees under this plan as follows (approximate number of shares): 2014–75,000; 2013–85,000; 2012–107,000. Options granted to employees to purchase discounted stock under this plan are included in the option activity tables within this note.
	Additionally, an international subsidiary of the Company maintains a stock purchase plan for its employees. Subject to limitations, employee contributions to this plan are matched 1:1 by the Company. Under this plan, shares were granted by the Company to match an equal number of shares purchased by employees as follows (approximate number of shares): 2014–58,000; 2013–58,000; 2012–71,000.
	Compensation expense for all types of equity-based programs and the related income tax benefit recognized were as follows:
	(millions)		2014			2013			2012
	Pre-tax compensation expense	$	41		$	38		$	46
	Related income tax benefit	$	15		$	14		$	17
	As of January 3, 2015, total stock-based compensation cost related to non-vested awards not yet recognized was $49 million and the weighted-average period over which this amount is expected to be recognized was 2 years.
	Cash flows realized upon exercise or vesting of stock-based awards in the periods presented are included in the following table. Tax benefits realized upon exercise or vesting of stock-based awards generally represent the tax benefit of the difference between the exercise price and the strike price of the option.
	Cash used by the Company to settle equity instruments granted under stock-based awards was insignificant.
	(millions)			2014			2013			2012
	Total cash received from option exercises and similar instruments		$	217		$	475		$	229
	Tax benefits realized upon exercise or vesting of stock-based awards:
	Windfall benefits classified as financing cash flow		$	11		$	24		$	6
	Shares used to satisfy stock-based awards are normally issued out of treasury stock, although management is authorized to issue new shares to the extent permitted by respective plan provisions. Refer to Note 4 for information on shares issued during the periods presented to employees and directors under various long-term incentive plans and share repurchases under the Company's stock repurchase authorizations. The Company does not currently have a policy of repurchasing a specified number of shares issued under employee benefit programs during any particular time period.
	Stock options
	During the periods presented, non-qualified stock options were granted to eligible employees under the 2013 and 2009 Plans with exercise prices equal to the fair market value of the Company's stock on the grant date, a contractual term of ten years, and a three-year graded vesting period.
	Management estimates the fair value of each annual stock option award on the date of grant using a lattice-based option valuation model. Composite assumptions are presented in the following table. Weighted-average values are disclosed for certain inputs which incorporate a range of assumptions. Expected volatilities are based principally on historical volatility of the Company's stock, and to a lesser extent, on implied volatilities from traded options on the Company's stock. Historical volatility corresponds to the contractual term of the options granted. The Company uses historical data to estimate option exercise and employee termination within the valuation models; separate groups of employees that have similar historical exercise behavior are considered separately for valuation purposes. The expected term of options granted represents the period of time that options granted are expected to be outstanding; the weighted-average expected term for all employee groups is presented in the following table. The risk-free rate for periods within the contractual life of the options is based on the U.S. Treasury yield curve in effect at the time of grant.
	Stock option valuation model assumptions			2014			2013			2012
	for grants within the year ended:
		Weighted-average expected volatility		15	%		15	%		16	%
		Weighted-average expected term (years)		7.34			7.44			7.53
		Weighted-average risk-free interest rate		2.35	%		1.49	%		1.6	%
		Dividend yield		3	%		2.9	%		3.3	%
	Weighted-average fair value of options granted		$	6.7		$	5.92		$	5.23
	A summary of option activity for the year ended January 3, 2015 is presented in the following table:
						Weighted-
					Weighted-	average			Aggregate
					average	remaining			intrinsic
		Shares			exercise	contractual			value
	Employee and director stock options	(millions)			price	term (yrs.)			(millions)
	Outstanding, beginning of period	20		$	54
	Granted	6			60
	Exercised	-4			50
	Forfeitures and expirations	-1			58
	Outstanding, end of period	21		$	56	7.1		$	195
	Exercisable, end of period	10		$	53	5.7		$	127
	Additionally, option activity for the comparable prior year periods is presented in the following table:
	(millions, except per share data)		2013			2012
	Outstanding, beginning of year		25			24
	Granted		6			6
	Exercised		-10			-4
	Forfeitures and expirations		-1			-1
	Outstanding, end of year		20			25
	Exercisable, end of year		9			14
	Weighted-average exercise price:
	Outstanding, beginning of year	$	50		$	48
	Granted		60			52
	Exercised		48			44
	Forfeitures and expirations		55			53
	Outstanding, end of year	$	54		$	50
	Exercisable, end of year	$	50		$	48
	The total intrinsic value of options exercised during the periods presented was (in millions): 2014–$56; 2013–$139; 2012–$34.
	Other stock-based awards
	During the periods presented, other stock-based awards consisted principally of executive performance shares and restricted stock granted under the 2013 and 2009 Plans.
	In 2014, 2013 and 2012, the Company made performance share awards to a limited number of senior executive-level employees, which entitles these employees to receive a specified number of shares of the Company's common stock on the vesting date, provided cumulative three-year targets are achieved. The cumulative three-year targets involved operating profit and comparable net sales growth. Management estimates the fair value of performance share awards based on the market price of the underlying stock on the date of grant, reduced by the present value of estimated dividends foregone during the performance period. The 2014, 2013 and 2012 target grants (as revised for non-vested forfeitures and other adjustments) currently correspond to approximately 223,000, 194,000 and 178,000 shares, respectively, with a grant-date fair value of $54, $54, and $47 per share. The actual number of shares issued on the vesting date could range from zero to 200% of target, depending on actual performance achieved. Based on the market price of the Company's common stock at year-end 2014, the maximum future value that could be awarded on the vesting date was (in millions): 2014 award–$29; 2013 award–$25; and 2012 award–$23. The 2011 performance share award, payable in stock, was settled at 60% of target in February 2014 for a total dollar equivalent of $3 million.
	The Company also periodically grants restricted stock and restricted stock units to eligible employees under the 2013 Plan. Restrictions with respect to sale or transferability generally lapse after three years and, in the case of restricted stock, the grantee is normally entitled to receive shareholder dividends during the vesting period. Management estimates the fair value of restricted stock grants based on the market price of the underlying stock on the date of grant. A summary of restricted stock activity for the year ended January 3, 2015, is presented in the following table:
					Weighted- average
	Employee restricted stock	Shares			grant-date
	and restricted stock units	(thousands)			fair value
Non-vested, beginning of year	318		$	52
Granted	114			56
Vested	-65			51
Forfeited	-21			53
Non-vested, end of year	346		$	54
Grants of restricted stock and restricted stock units for comparable prior-year periods were: 2013 – 139,000, 2012–160,000.
The total fair value of restricted stock and restricted stock units vesting in the periods presented was (in millions): 2014–$4; 2013–$6; 2012–$4

Pension_Benefits

Pension Benefits	12 Months Ended
	Jan. 03, 2015
Pension Benefits [Abstract]
Pension Benefits [Text Block]	NOTE 8
	PENSION BENEFITS
	The Company sponsors a number of U.S. and foreign pension plans to provide retirement benefits for its employees. The majority of these plans are funded or unfunded defined benefit plans, although the Company does participate in a limited number of multiemployer or other defined contribution plans for certain employee groups. See Note 10 for more information regarding the Company's participation in multiemployer plans. Defined benefits for salaried employees are generally based on salary and years of service, while union employee benefits are generally a negotiated amount for each year of service.
	Obligations and funded status
	The aggregate change in projected benefit obligation, plan assets, and funded status is presented in the following tables.
	(millions)			2014			2013
	Change in projected benefit obligation
	Beginning of year		$	4,888		$	5,135
	Service cost			106			133
	Interest cost			225			203
	Plan participants' contributions			2			2
	Amendments			4			4
	Actuarial (gain)loss			754			-407
	Benefits paid			-281			-218
	Acquisitions			-			17
	Curtailment and special termination benefits			-			26
	Other			3			-
	Foreign currency adjustments			-131			-7
	End of year		$	5,570		$	4,888
	Change in plan assets
	Fair value beginning of year		$	5,014		$	4,374
	Actual return on plan assets			390			802
	Employer contributions			37			34
	Plan participants' contributions			2			2
	Benefits paid			-261			-200
	Other			3			-
	Foreign currency adjustments			-157			2
	Fair value end of year		$	5,028		$	5,014
	Funded status		$	-542		$	126
	Amounts recognized in the Consolidated
	Balance Sheet consist of
	Other assets		$	250		$	419
	Other current liabilities			-15			-16
	Other liabilities			-777			-277
	Net amount recognized		$	-542		$	126
	Amounts recognized in accumulated other
	comprehensive income consist of
	Prior service cost		$	59		$	73
	Net amount recognized		$	59		$	73
	The accumulated benefit obligation for all defined benefit pension plans was $5.1 billion and $4.5 billion at January 3, 2015 and December 28, 2013, respectively. Information for pension plans with accumulated benefit obligations in excess of plan assets were:
	(millions)		2014			2013
	Projected benefit obligation	$	3,958		$	327
	Accumulated benefit obligation	$	3,683		$	251
	Fair value of plan assets	$	3,179		$	58
	Expense
	The components of pension expense are presented in the following table. Pension expense for defined contribution plans relates to certain foreign-based defined contribution plans and multiemployer plans in the United States in which the Company participates on behalf of certain unionized workforces.
	(millions)		2014			2013			2012
	Service cost	$	106		$	133		$	110
	Interest cost		225			203			207
	Expected return on plan assets		-415			-359			-344
	Amortization of unrecognized
	prior service cost		14			16			14
	Recognized net (gain)loss		782			-854			372
	Curtailment and special termination benefits		4			34			-
	Pension (income)expense:
	Defined benefit plans		716			-827			359
	Defined contribution plans		36			35			29
	Total	$	752		$	-792		$	388
	The estimated prior service cost for defined benefit pension plans that will be amortized from accumulated other comprehensive income into pension expense over the next fiscal year is approximately $12 million.
	The Company and certain of its subsidiaries sponsor 401(k) or similar savings plans for active employees. Expense related to these plans was (in millions): 2014 - $43; 2013 - $41; 2012- $39. These amounts are not included in the preceding expense table. Company contributions to these savings plans approximate annual expense. Company contributions to multiemployer and other defined contribution pension plans approximate the amount of annual expense presented in the preceding table.
	See discussion in Note 3 related to curtailment and special termination benefit costs recognized in 2014.
	Assumptions
	The worldwide weighted-average actuarial assumptions used to determine benefit obligations were:
			2014	2013	2012
Discount rate		3.90%	4.70%	4.00%
Long-term rate of compensation increase		4.00%	4.10%	4.10%
The worldwide weighted-average actuarial assumptions used to determine annual net periodic benefit cost were:
		2014	2013	2012
Discount rate		4.70%	4.10%	4.80%
Long-term rate of compensation increase		4.10%	4.10%	4.20%
Long-term rate of return on plan assets		8.50%	8.50%	8.90%
To determine the overall expected long-term rate of return on plan assets, the Company models expected returns over a 20-year investment horizon with respect to the specific investment mix of its major plans. The return assumptions used reflect a combination of rigorous historical performance analysis and forward-looking views of the financial markets including consideration of current yields on long-term bonds, price-earnings ratios of the major stock market indices, and long-term inflation. The U.S. model, which corresponds to approximately 69% of consolidated pension and other postretirement benefit plan assets, incorporates a long-term inflation assumption of 2.5% and an active management premium of 1% (net of fees) validated by historical analysis. Similar methods are used for various foreign plans with invested assets, reflecting local economic conditions. The expected rate of return for 2014 of 8.5% equated to approximately the 57th percentile expectation. Refer to Note 1.
On October 27, 2014, the Society of Actuaries' (SOA) published updated mortality tables and an updated improvement scale, which both reflect improved longevity. In determining the appropriate mortality assumptions as of January 3, 2015, the Company considered the SOA's updated mortality tables as well as other mortality information available from the Social Security Administration to develop assumptions aligned with the Company's expectation of future improvement rates. The change to the mortality assumption increased the year-end pension and postretirement benefit obligations by $126 million and $33 million, respectively.
To conduct the annual review of discount rates, the Company selected the discount rate based on a cash-flow matching analysis using Towers Watson's proprietary RATE:Link tool and projections of the future benefit payments that constitute the projected benefit obligation for the plans. RATE:Link establishes the uniform discount rate that produces the same present value of the estimated future benefit payments, as is generated by discounting each year's benefit payments by a spot rate applicable to that year. The spot rates used in this process are derived from a yield curve created from yields on the 40th to 90th percentile of U.S. high quality bonds. A similar methodology is applied in Canada and Europe, except the smaller bond markets imply that yields between the 10th and 90th percentiles are preferable. The measurement dates for the defined benefit plans are consistent with the Company's fiscal year end. Accordingly, the Company selected discount rates to measure the benefit obligations consistent with market indices at year-end.
Plan assets
The Company categorized Plan assets within a three level fair value hierarchy described as follows:
Investments stated at fair value as determined by quoted market prices (Level 1) include:
Cash and cash equivalents:  Value based on cost, which approximates fair value.
Corporate stock, common:  Value based on the last sales price on the primary exchange.
Investments stated at estimated fair value using significant observable inputs (Level 2) include:
Cash and cash equivalents:  Institutional short-term investment vehicles valued daily.
Mutual funds:  Valued at the net asset value of shares held by the Plan at year end.
Collective trusts:  Value based on the net asset value of units held at year end.
Bonds:   Value based on matrices or models from pricing vendors.
Limited partnerships: Value based on the ending net capital account balance at year end.
Investments stated at estimated fair value using significant unobservable inputs (Level 3) include:
Real Estate:  Value based on the net asset value of units held at year end. The fair value of real estate holdings is based on market data including earnings capitalization, discounted cash flow analysis, comparable sales transactions or a combination of these methods.
Bonds:  Value based on matrices or models from brokerage firms. A limited number of the investments are in default.
The preceding methods described may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, although the Company believes its valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date.
The Company's practice regarding the timing of transfers between levels is to measure transfers in at the beginning of the month and transfers out at the end of the month. For the year ended January 3, 2015, the Company had no transfers between Levels 1 and 2.
The fair value of Plan assets as of January 3, 2015 summarized by level within the fair value hierarchy are as follows:
			Total			Total			Total
(millions)			Level 1			Level 2			Level 3			Total
Cash and cash equivalents		$	47		$	44		$	-		$	91
Corporate stock, common:
	Domestic		556			-			-			556
	International		161			-			-			161
Mutual funds:
	International equity		-			393			-			393
Collective trusts:
	Domestic equity		-			594			-			594
	International equity		-			1,261			-			1,261
	Eurozone sovereign debt		-			11			-			11
	Other international debt		-			534			-			534
Limited partnerships			-			475			-			475
Bonds, corporate			-			519			-			519
Bonds, government			-			172			-			172
Bonds, other			-			59			-			59
Real estate			-			-			130			130
Other			-			64			8			72
Total		$	764		$	4,126		$	138		$	5,028
The fair value of Plan assets at December 28, 2013 are summarized as follows:
			Total			Total			Total
(millions)			Level 1			Level 2			Level 3			Total
Cash and cash equivalents		$	28		$	83		$	-		$	111
Corporate stock, common:
	Domestic		576			-			-			576
	International		297			-			-			297
Mutual funds:
	International equity		-			726			-			726
	International debt		-			54			-			54
Collective trusts:
	Domestic equity		-			737			-			737
	International equity		-			982			-			982
	Eurozone sovereign debt		-			14			-			14
	Other international debt		-			288			-			288
Limited partnerships			-			468			-			468
Bonds, corporate			-			370			1			371
Bonds, government			-			123			-			123
Bonds, other			-			52			-			52
Real estate			-			-			125			125
Other			-			82			8			90
Total		$	901		$	3,979		$	134		$	5,014
There were no unfunded commitments to purchase investments at January 3, 2015 or December 28, 2013.
The Company's investment strategy for its major defined benefit plans is to maintain a diversified portfolio of asset classes with the primary goal of meeting long-term cash requirements as they become due. Assets are invested in a prudent manner to maintain the security of funds while maximizing returns within the Plan's investment policy. The investment policy specifies the type of investment vehicles appropriate for the Plan, asset allocation guidelines, criteria for the selection of investment managers, procedures to monitor overall investment performance as well as investment manager performance. It also provides guidelines enabling Plan fiduciaries to fulfill their responsibilities.
The current weighted-average target asset allocation reflected by this strategy is: equity securities–69%; debt securities–25%; other–6%. Investment in Company common stock represented 1.3% and 1.2% of consolidated plan assets at January 3, 2015 and December 28, 2013, respectively. Plan funding strategies are influenced by tax regulations and funding requirements. The Company currently expects to contribute approximately $39 million to its defined benefit pension plans during 2014.
Level 3 gains and losses
Changes in the fair value of the Plan's Level 3 assets are summarized as follows:
(millions)		Bonds, corporate			Real estate			Other			Total
29-Dec-12	$	-		$	115		$	9		$	124
Purchases		1			1			1			3
Sales		-			-			-1			-1
Realized and unrealized gain		-			8			-			8
Currency translation		-			1			-1			-
28-Dec-13	$	1		$	125		$	8		$	134
Sales		-1			-1			-			-2
Realized and unrealized gain		-			23			-			23
Currency translation		-			-17			-			-17
3-Jan-15	$	-		$	130		$	8		$	138
The net change in Level 3 assets includes a gain attributable to the change in unrealized holding gains or losses related to Level 3 assets held at January 3, 2015 and December 28, 2013 totaling $23 million and $8 million, respectively.
Benefit payments
The following benefit payments, which reflect expected future service, as appropriate, are expected to be paid (in millions): 2015–$426; 2016–$267; 2017–$261; 2018–$269; 2019–$279; 2020 to 2024–$1,627.

Nonpension_Postretirement_and_

Nonpension Postretirement and Postemployment Benefits	12 Months Ended
	Jan. 03, 2015
Nonpension Postretirement and Postemployment Benefits [Abstract]
Nonpension Postretirement and Postemployment Benefits [Text Block]	NOTE 9
	NONPENSION POSTRETIREMENT AND POSTEMPLOYMENT BENEFITS
	Postretirement
	The Company sponsors a number of plans to provide health care and other welfare benefits to retired employees in the United States and Canada, who have met certain age and service requirements. The majority of these plans are funded or unfunded defined benefit plans, although the Company does participate in a limited number of multiemployer or other defined contribution plans for certain employee groups. The Company contributes to voluntary employee benefit association (VEBA) trusts to fund certain U.S. retiree health and welfare benefit obligations.
	Obligations and funded status
	The aggregate change in accumulated postretirement benefit obligation, plan assets, and funded status is presented in the following tables.
	(millions)		2014			2013
	Change in accumulated benefit obligation
	Beginning of year	$	1,202		$	1,323
	Service cost		28			34
	Interest cost		55			50
	Actuarial (gain) loss		116			-145
	Benefits paid		-62			-56
	Curtailments		-28			1
	Amendments		-18			-
	Foreign currency adjustments		-5			-5
	End of year	$	1,288		$	1,202
	Change in plan assets
	Fair value beginning of year	$	1,178		$	1,040
	Actual return on plan assets		81			188
	Employer contributions		16			14
	Benefits paid		-71			-64
	Fair value end of year	$	1,204		$	1,178
	Funded status	$	-84		$	-24
	Amounts recognized in the Consolidated
	Balance Sheet consist of
	Other non-current assets	$	-		$	47
	Other current liabilities		-2			-3
	Other liabilities		-82			-68
	Net amount recognized	$	-84		$	-24
	Amounts recognized in accumulated other
	comprehensive income consist of
	Prior service credit		-16			-1
	Net amount recognized	$	-16		$	-1
	Expense
	Components of postretirement benefit expense (income) were:
	(millions)		2014			2013			2012
	Service cost	$	28		$	34		$	27
	Interest cost		55			50			53
	Expected return on plan assets		-98			-86			-84
	Amortization of unrecognized prior service credit		-3			-3			-2
	Recognized net (gain) loss		133			-247			66
	Curtailment		-28			1			-
	Postretirement benefit expense:
	Defined benefit plans		87			-251			60
	Defined contribution plans		14			13			13
	Total	$	101		$	-238		$	73
	The estimated prior service cost credit that will be amortized from accumulated other comprehensive income into nonpension postretirement benefit expense over the next fiscal year is expected to be approximately $2 million.
	See discussion in Note 3 regarding curtailment expense recognized in 2014.
	Assumptions
	The weighted-average actuarial assumptions used to determine benefit obligations were:
			2014			2013			2012
	Discount rate		4	%		4.8	%		3.9	%
	The weighted-average actuarial assumptions used to determine annual net periodic benefit cost were:
			2014			2013			2012
	Discount rate		4.8	%		3.9	%		4.6	%
	Long-term rate of return on plan assets		8.5	%		8.5	%		8.9	%
	The Company determines the overall discount rate and expected long-term rate of return on VEBA trust obligations and assets in the same manner as that described for pension trusts in Note 8.
	The assumed health care cost trend rate is 5.0% for 2015, decreasing gradually to 4.5% by the year 2017 and remaining at that level thereafter. These trend rates reflect the Company's historical experience and management's expectations regarding future trends. A one percentage point change in assumed health care cost trend rates would have the following effects:
		One percentage			One percentage
	(millions)	point increase			point decrease
	Effect on total of service and interest cost components	$	15		$	-10
	Effect on postretirement benefit obligation		169			-121
	Plan assets
The fair value of Plan assets as of January 3, 2015 summarized by level within fair value hierarchy described in Note 8, are as follows:
			Total			Total			Total
(millions)			Level 1			Level 2			Level 3		Total
Cash and cash equivalents		$	6		$	27		$	-	$	33
Corporate stock, common:
	Domestic		214			-			-		214
	International		17			-			-		17
Mutual funds:
	Domestic equity		-			153			-		153
	International equity		-			120			-		120
	Domestic debt		-			63			-		63
Collective trusts:
	Domestic equity		-			53			-		53
	International equity		-			164			-		164
Limited partnerships			-			174			-		174
Bonds, corporate			-			141			-		141
Bonds, government			-			54			-		54
Bonds, other			-			17			-		17
Other			-			1			-		1
Total		$	237		$	967		$	-	$	1,204
The fair value of Plan assets at December 28, 2013 are summarized as follows:
			Total			Total			Total
(millions)			Level 1			Level 2			Level 3		Total
Cash and cash equivalents		$	7		$	39		$	-	$	46
Corporate stock, common:
	Domestic		231			-			-		231
	International		15			-			-		15
Mutual funds:
	Domestic equity		-			167			-		167
	International equity		-			124			-		124
	Domestic debt		-			57			-		57
Collective trusts:
	Domestic equity		-			14			-		14
	International equity		-			169			-		169
Limited partnerships			-			169			-		169
Bonds, corporate			-			130			-		130
Bonds, government			-			39			-		39
Bonds, other			-			16			-		16
Other			-			1			-		1
Total		$	253		$	925		$	-	$	1,178
The Company's asset investment strategy for its VEBA trusts is consistent with that described for its pension trusts in Note 8. The current target asset allocation is 75% equity securities and 25% debt securities. The Company currently expects to contribute approximately $16 million to its VEBA trusts during 2015.
There were no Level 3 assets during 2014 and 2013.
Postemployment
Under certain conditions, the Company provides benefits to former or inactive employees, including salary continuance, severance, and long-term disability, in the United States and several foreign locations. The Company's postemployment benefit plans are unfunded. Actuarial assumptions used are generally consistent with those presented for pension benefits in Note 8. The aggregate change in accumulated postemployment benefit obligation and the net amount recognized were:
(millions)			2014			2013
Change in accumulated benefit obligation
Beginning of year		$	87		$	103
Service cost			7			7
Interest cost			4			3
Actuarial (gain)loss			8			-17
Benefits paid			-9			-9
Amendments			8			-
Foreign currency adjustments			-1			-
End of year		$	104		$	87
Funded status		$	-104		$	-87
Amounts recognized in the Consolidated
Balance Sheet consist of
Other current liabilities		$	-8		$	-8
Other liabilities			-96			-79
Net amount recognized		$	-104		$	-87
Amounts recognized in accumulated other
comprehensive income consist of
Net prior service cost		$	7		$	-
Net experience loss			30			25
Net amount recognized		$	37		$	25
Components of postemployment benefit expense were:
(millions)		2014			2013			2012
Service cost	$	7		$	7		$	7
Interest cost		4			3			4
Recognized net loss		3			5			5
Postemployment benefit expense	$	14		$	15		$	16
The estimated net experience loss and net prior service cost that will be amortized from accumulated other comprehensive income into postemployment benefit expense over the next fiscal year is $3 million and $1 million, respectively.
Benefit payments
The following benefit payments, which reflect expected future service, as appropriate, are expected to be paid:
(millions)		Postretirement			Postemployment
2015	$	69		$	8
2016		71			8
2017		72			8
2018		72			8
2019		73			8
2020-2024		390			42

Multiemployer_Pension_and_Post

Multiemployer Pension and Postretirement Plans	12 Months Ended
	Jan. 03, 2015
Multiemployer Plans [Abstract]
Multiemployer Plans [Text Block]	NOTE 10
	MULTIEMPLOYER PENSION AND POSTRETIREMENT PLANS
	The Company contributes to multiemployer defined contribution pension and postretirement benefit plans under the terms of collective-bargaining agreements that cover certain unionized employee groups in the United States. Contributions to these plans are included in total pension and postretirement benefit expense as reported in Notes 8 and 9, respectively.
	Pension benefits
	The risks of participating in multiemployer pension plans are different from single-employer plans. Assets contributed to a multiemployer plan by one employer may be used to provide benefits to employees of other participating employers. If a participating employer stops contributing to the plan, the unfunded obligations of the plan are borne by the remaining participating employers.
	The Company's participation in multiemployer pension plans for the year ended January 3, 2015, is outlined in the table below. The "EIN/PN" column provides the Employer Identification Number (EIN) and the three-digit plan number (PN). The most recent Pension Protection Act (PPA) zone status available for 2014 and 2013 is for the plan year-ends as indicated below. The zone status is based on information that the Company received from the plan and is certified by the plan's actuary. Among other factors, plans in the red zone are generally less than 65 percent funded, plans in the yellow zone are between 65 percent and 80 percent funded, and plans in the green zone are at least 80 percent funded. The "FIP/RP Status Pending/Implemented" column indicates plans for which a financial improvement plan (FIP) or a rehabilitation plan (RP) is either pending or has been implemented. In addition to regular plan contributions, the Company may be subject to a surcharge if the plan is in the red zone. The “Surcharge Imposed” column indicates whether a surcharge has been imposed on contributions to the plan. The last column lists the expiration date(s) of the collective-bargaining agreement(s) (CBA) to which the plans are subject.
				PPA Zone Status			FIP/RP Status	Contributions by the Company (millions)
	Pension trust fund		EIN/PN	2014	2013	Pending/ Implemented	2014	2013	2012	Surcharge Imposed	Expiration Date of CBA
	Bakery and Confectionary Union and Industry International Pension Fund (a)		52-6118572 / 001	Red - 12/31/2014	Red - 12/31/2013	Implemented	$5.40	$5.20	$4.80	Yes	10/31/2015 to 4/30/2017
	Central States, Southeast and Southwest Areas Pension Fund (b)		36-6044243 / 001	Red - 12/31/2014	Red - 12/31/2013	Implemented	4.5	4.5	4.3	Yes	1/31/2015 to 10/31/2017
	Western Conference of Teamsters Pension Trust ( c )		91-6145047 / 001	Green - 12/31/2014	Green - 12/31/2013	N/A	1.6	1.5	1.3	No	1/31/2015 to 3/29/2018
	Hagerstown Motor Carriers and Teamsters Pension Fund		52-6045424 / 001	Red - 6/30/2015	Red - 6/30/2014	Implemented	0.5	0.5	0.4	No	10/3/15
	Local 734 Pension Plan		51-6040136 / 001	Red - 4/30/2015	Red - 4/30/2014	Implemented	0.3	0.3	0.3	Yes	4/1/15
	Twin Cities Bakery Drivers Pension Plan		41-6172265 / 001	Green - 12/31/2014	Red - 12/31/2013	N/A	0.2	0.2	0.2	Yes	5/31/15
	Upstate New York Bakery Drivers and Industry Pension Fund		15-0612437 / 001	Green - 6/30/2014	Green - 6/30/2013	N/A	0.2	0.1	0.1	No	9/10/17
	Other Plans						2	2.2	2.1
	Total contributions:						$14.70	$14.50	$13.50
	(a) The Company is party to multiple CBAs requiring contributions to this fund, each with its own expiration date. Over 70 percent of the Company's participants in this fund are covered by a single CBA that expires on 4/30/2017.
	(b) The Company is party to multiple CBAs requiring contributions to this fund, each with its own expiration date. Over 40 percent of the Company's participants in this fund are covered by a single CBA that expires on 7/27/2017.
	(c) The Company is party to multiple CBAs requiring contributions to this fund, each with its own expiration date. Over 40 percent of the Company's participants in this fund are covered by a single CBA that expires on 3/24/2018.
	The Company was listed in the Forms 5500 of the following plans as of the following plan year ends as providing more than 5 percent of total contributions:
	Pension trust fund	Contributions to the plan exceeded more than 5% of total contributions (as of the Plan's year end)
	Hagerstown Motor Carriers and Teamsters Pension Fund	6/30/2013 and 6/30/2012
	Local 734 Pension Plan	4/30/2014, 4/30/2013 and 4/30/2012
	Twin Cities Bakery Drivers Pension Plan	12/31/2013, 12/31/2012 and 12/31/2011
	Baker's Local 433 Pension Plan	12/31/13
	Upstate New York Bakery Drivers and Industry Pension Fund	6/30/2013 and 6/30/2012

Income_Taxes

Income Taxes	12 Months Ended
	Jan. 03, 2015
Income Taxes [Abstract]
Income Taxes [Text Block]	NOTE 11
	INCOME TAXES
	The components of income before income taxes and the provision for income taxes were as follows:
	(millions)				2014			2013			2012
	Income before income taxes
		United States		$	502		$	2,102		$	1,008
		Foreign			323			504			317
					825			2,606			1,325
	Income taxes
		Currently payable
			Federal		301			302			383
			State		36			68			34
			Foreign		103			105			105
					440			475			522
		Deferred
			Federal		-186			331			-129
			State		-14			-2			8
			Foreign		-54			-12			-38
					-254			317			-159
	Total income taxes			$	186		$	792		$	363
	The difference between the U.S. federal statutory tax rate and the Company's effective income tax rate was:
			2014			2013			2012
	U.S. statutory income tax rate		35	%		35	%		35	%
	Foreign rates varying from 35%		-7.9			-3.5			-4.4
	State income taxes, net of federal benefit		1.7			1.7			2.1
	Cost (benefit) of remitted and unremitted foreign earnings		-0.1			-0.4			-1.8
	Tax audit activity		0.2			-0.1			0
	Net change in valuation allowances		0.3			0.4			0.8
	Statutory rate changes, deferred tax impact		-0.4			-0.5			-0.3
	U.S. deduction for qualified production activities		-2.8			-0.9			-2.1
	Other		-3.4			-1.3			-1.9
	Effective income tax rate		22.6	%		30.4	%		27.4	%
	As presented in the preceding table, the Company's 2014 consolidated effective tax rate was 22.6%, as compared to 30.4% in 2013 and 27.4% in 2012.
	The 2014 effective income tax rate benefited due to mark-to-market loss adjustments to the Company's pension plans in primarily higher tax jurisdictions. This results in a greater percentage of total income being generated in lower tax jurisdictions and permanent tax differences in the U.S. having a higher percentage impact on the tax rate. As of January 3, 2015, the Company recorded a deferred tax liability of $1 million related to $23 million of foreign earnings not considered indefinitely reinvested. Accumulated foreign earnings of approximately $2.2 billion, primarily in Europe, were considered indefinitely reinvested. Due to varying tax laws around the world and fluctuations in foreign exchange rates, it is not practicable to determine the unrecognized deferred tax liability on these earnings because the actual tax liability, if any, would be dependent on circumstances existing when a repatriation, sale or liquidation occurs.
	The 2013 effective income tax rate was negatively impacted by income generated from mark-to-market adjustments for the Company's pension plans that was generally incurred in jurisdictions with tax rates higher than the effective income tax rate. As of December 28, 2013, the Company recorded a deferred tax liability of $2 million related to $24 million of foreign earnings not considered indefinitely reinvested. Accumulated foreign earnings of approximately $2.2 billion, primarily in Europe and Mexico, were considered indefinitely reinvested. Due to varying tax laws around the world and fluctuations in foreign exchange rates, it is not practicable to determine the unrecognized deferred tax liability on these earnings because the actual tax liability, if any, would be dependent on circumstances existing when a repatriation, sale or liquidation occurs.
	The 2012 effective income tax rate benefited from the elimination of a tax liability related to certain international earnings now considered indefinitely reinvested. As of December 29, 2012, the Company recorded a deferred tax liability of $5 million related to $258 million of earnings. Accumulated foreign earnings of approximately $1.7 billion, primarily in Europe, were considered indefinitely reinvested. Due to varying tax laws around the world and fluctuations in foreign exchange rates, it is not practicable to determine the unrecognized deferred tax liability on these earnings because the actual tax liability, if any, would be dependent on circumstances existing when a repatriation, sale or liquidation occurs.
	Management monitors the Company's ability to utilize certain future tax deductions, operating losses and tax credit carryforwards, prior to expiration. Changes resulting from management's assessment will result in impacts to deferred tax assets and the corresponding impacts on the effective income tax rate. Valuation allowances were recorded to reduce deferred tax assets to an amount that will, more likely than not, be realized in the future. The total tax benefit of carryforwards at year-end 2014 and 2013 were $ 54 million and $ 55 million, respectively, with related valuation allowances at year-end 2014 and 2013 of $39 million and $49 million, respectively. Of the total carryforwards at year-end 2014, substantially all will expire after 2018.
	The following table provides an analysis of the Company's deferred tax assets and liabilities as of year-end 2014 and 2013. Deferred tax assets on employee benefits increased in 2014 due to lower asset returns and discount rate decreases associated with the Company's pension and postretirement plans.
			Deferred tax assets						Deferred tax liabilities
	(millions)		2014			2013			2014			2013
	U.S. state income taxes	$	10		$	13		$	49		$	61
	Advertising and promotion-related		21			23			-			-
	Wages and payroll taxes		36			36			-			-
	Inventory valuation		-			37			-			-
	Employee benefits		305			65			-			-
	Operating loss and credit carryforwards		54			55			-			-
	Hedging transactions		48			10			-			-
	Depreciation and asset disposals		-			-			352			366
	Trademarks and other intangibles		-			-			555			529
	Deferred compensation		35			36			-			-
	Stock options		38			36			-			-
	Unremitted foreign earnings		-			-			1			2
	Other		84			109			-			-
			631			420			957			958
	Less valuation allowance		-51			-61			-			-
	Total deferred taxes	$	580		$	359		$	957		$	958
	Net deferred tax asset (liability)	$	-377		$	-599
	Classified in balance sheet as:
	Other current assets	$	184		$	195
	Other current liabilities		-10			-13
	Other assets		175			147
	Other liabilities		-726			-928
	Net deferred tax asset (liability)	$	-377		$	-599
	The change in valuation allowance reducing deferred tax assets was:
(millions)			2014			2013			2012
Balance at beginning of year		$	61		$	59		$	46
Additions charged to income tax expense			9			17			12
Reductions credited to income tax expense			-3			-3			-
Other (a)			-			-10			-
Currency translation adjustments			-16			-2			1
Balance at end of year		$	51		$	61		$	59
(a)	Reduction due to the disposition of a business resulting in deferred tax asset and valuation allowance being eliminated.
Cash paid for income taxes was (in millions): 2014–$414; 2013–$426; 2012–$508. Income tax benefits realized from stock option exercises and deductibility of other equity-based awards are presented in Note 7.
Uncertain tax positions
The Company is subject to federal income taxes in the U.S. as well as various state, local, and foreign jurisdictions. The Company's 2014 provision for U.S. federal income taxes represents approximately 60% of the Company's consolidated income tax provision. The Company was chosen to participate in the Internal Revenue Service (IRS) Compliance Assurance Program (CAP) beginning with the 2008 tax year. As a result, with limited exceptions, the Company is no longer subject to U.S. federal examinations by the IRS for years prior to 2014. The Company is under examination for income and non-income tax filings in various state and foreign jurisdictions.
As of January 3, 2015, the Company has classified $9 million of unrecognized tax benefits as a current liability. Management's estimate of reasonably possible changes in unrecognized tax benefits during the next twelve months is comprised of the current liability balance expected to be settled within one year, offset by approximately $9 million of projected additions related primarily to ongoing intercompany transfer pricing activity. Management is currently unaware of any issues under review that could result in significant additional payments, accruals, or other material deviation in this estimate.
Following is a reconciliation of the Company's total gross unrecognized tax benefits as of the years ended January 3, 2015, December 28, 2013 and December 29, 2012. For the 2014 year, approximately $56 million represents the amount that, if recognized, would affect the Company's effective income tax rate in future periods.
(millions)			2014			2013			2012
Balance at beginning of year		$	79		$	80		$	66
Tax positions related to current year:
	Additions		7			9			8
Tax positions related to prior years:
	Additions		10			17			14
	Reductions		-12			-13			-4
Settlements			-2			-14			-1
Lapses in statutes of limitation			-4			-			-3
Balance at end of year		$	78		$	79		$	80
For the year ended January 3, 2015, the Company recognized an increase of $3 million of tax-related interest and penalties resulting in an accrual balance of $20 million at year end. For the year ended December 28, 2013, the Company recognized an increase of $4 million of tax-related interest and penalties and cash settlements of $6 million, resulting in an accrual balance of $17 million at December 28, 2013. For the year ended December 29, 2012, the Company recognized an increase of $4 million of tax-related interest and penalties and had approximately $19 million accrued at December 29, 2012.

Derivative_Instruments_and_Fai

Derivative Instruments and Fair Value Measurements	12 Months Ended
	Jan. 03, 2015
Derivative Instruments and Fair Value Measurements [Abstract]
Derivative Instruments and Fair Value Measurements [Text Block]	NOTE 12
	DERIVATIVE INSTRUMENTS AND FAIR VALUE MEASUREMENTS
	The Company is exposed to certain market risks such as changes in interest rates, foreign currency exchange rates, and commodity prices, which exist as a part of its ongoing business operations. Management uses derivative financial and commodity instruments, including futures, options, and swaps, where appropriate, to manage these risks. Instruments used as hedges must be effective at reducing the risk associated with the exposure being hedged and must be designated as a hedge at the inception of the contract.
	The Company designates derivatives as cash flow hedges, fair value hedges, net investment hedges, and uses other contracts to reduce volatility in interest rates, foreign currency and commodities. As a matter of policy, the Company does not engage in trading or speculative hedging transactions.
	Total notional amounts of the Company's derivative instruments as of January 3, 2015 and December 28, 2013 were as follows:
	(millions)		2014			2013
	Foreign currency exchange contracts	$	764		$	517
	Interest rate contracts		2,958			2,400
	Commodity contracts		492			361
	Total	$	4,214		$	3,278
	Following is a description of each category in the fair value hierarchy and the financial assets and liabilities of the Company that were included in each category at January 3, 2015 and December 28, 2013, measured on a recurring basis.
	Level 1 – Financial assets and liabilities whose values are based on unadjusted quoted prices for identical assets or liabilities in an active market. For the Company, level 1 financial assets and liabilities consist primarily of commodity derivative contracts.
	Level 2 – Financial assets and liabilities whose values are based on quoted prices in markets that are not active or model inputs that are observable either directly or indirectly for substantially the full term of the asset or liability. For the Company, level 2 financial assets and liabilities consist of interest rate swaps and over-the-counter commodity and currency contracts.
	The Company's calculation of the fair value of interest rate swaps is derived from a discounted cash flow analysis based on the terms of the contract and the interest rate curve. Over-the-counter commodity derivatives are valued using an income approach based on the commodity index prices less the contract rate multiplied by the notional amount. Foreign currency contracts are valued using an income approach based on forward rates less the contract rate multiplied by the notional amount. The Company's calculation of the fair value of level 2 financial assets and liabilities takes into consideration the risk of nonperformance, including counterparty credit risk.
	Level 3 – Financial assets and liabilities whose values are based on prices or valuation techniques that require inputs that are both unobservable and significant to the overall fair value measurement. These inputs reflect management's own assumptions about the assumptions a market participant would use in pricing the asset or liability. The Company did not have any level 3 financial assets or liabilities as of January 3, 2015 or December 28, 2013.
	The following table presents assets and liabilities that were measured at fair value in the Consolidated Balance Sheet on a recurring basis as of January 3, 2015 and December 28, 2013:
	Derivatives designated as hedging instruments:
			2014								2013
	(millions)			Level 1			Level 2			Total			Level 1			Level 2			Total
	Assets:
	Foreign currency exchange contracts:
		Other current assets	$	-		$	29		$	29		$	-		$	7		$	7
	Interest rate contracts (a):
		Other assets		-			7			7			-			-			-
	Total assets		$	-		$	36		$	36		$	-		$	7		$	7
	Liabilities:
	Foreign currency exchange contracts:
		Other current liabilities	$	-		$	-6		$	-6		$	-		$	-8		$	-8
	Interest rate contracts:
		Other current liabilities		-			-3			-3			-			-			-
		Other liabilities		-			-16			-16			-			-59			-59
	Commodity contracts:
		Other current liabilities		-			-12			-12			-			-9			-9
		Other liabilities		-			-11			-11			-			-19			-19
	Total liabilities		$	-		$	-48		$	-48		$	-		$	-95		$	-95
	(a)	The fair value of the related hedged portion of the Company's long-term debt, a level 2 liability, was $2.5 billion as of January 3, 2015 and December 28, 2013.
	Derivatives not designated as hedging instruments:
			2014									2013
	(millions)			Level 1			Level 2			Total			Level 1			Level 2			Total
	Assets:
	Commodity contracts:
		Other current assets	$	7		$	-		$	7		$	3		$	-		$	3
	Total assets		$	7		$	-		$	7		$	3		$	-		$	3
	Liabilities:
	Commodity contracts:
		Other current liabilities	$	-36		$	-		$	-36		$	-7		$	-		$	-7
		Other liabilities		-4			-			-4			-			-			-
	Total liabilities		$	-40		$	-		$	-40		$	-7		$	-		$	-7
	During 2014, the Company designated a portion of its outstanding foreign currency denominated long-term debt as a net investment hedge of a portion of the Company's investment in its subsidiaries foreign currency denominated net assets. The carrying value of this debt was $600 million as of January 3, 2015.
	The Company has elected to not offset the fair values of derivative assets and liabilities executed with the same counterparty that are generally subject to enforceable netting agreements. However, if the Company were to offset and record the asset and liability balances of derivatives on a net basis, the amounts presented in the Consolidated Balance Sheet as of January 3, 2015 and December 28, 2013 would be adjusted as detailed in the following table:
	As of January 3, 2015:
							Gross Amounts Not Offset in the Consolidated Balance Sheet
					Amounts Presented in the Consolidated Balance Sheet		Financial Instruments		Cash Collateral Received/ Posted		Net Amount
	Total asset derivatives			$	43	$	-29	$	-	$	14
	Total liability derivatives			$	-88	$	29	$	50	$	-9
	As of December 28, 2013:
							Gross Amounts Not Offset in the Consolidated Balance Sheet
					Amounts Presented in the Consolidated Balance Sheet		Financial Instruments		Cash Collateral Received/ Posted		Net Amount
	Total asset derivatives			$	10	$	-10	$	-	$	0
	Total liability derivatives			$	-102	$	10	$	21	$	-71
	The effect of derivative instruments on the Consolidated Statement of Income for the years ended January 3, 2015 and December 28, 2013 were as follows:
	Derivatives in fair value hedging relationships
																Location of gain		Gain (loss)
																(loss) recognized		recognized in
(millions)															in income		income (a)
																	2014			2013
Foreign currency exchange contracts															OIE	$	3		$	2
Interest rate contracts															Interest expense		17			-5
Total																$	20		$	-3
(a)	Includes the ineffective portion and amount excluded from effectiveness testing.
Derivatives in cash flow hedging relationships
								Location of gain		Gain (loss)					Location of gain
			Gain (loss)					(loss) reclassified		reclassified from					(loss) recognized		Gain (loss)
(millions)			recognized in AOCI					from AOCI		AOCI into income					in income (a)		recognized in income(a)
			2014			2013				2014			2013				2014			2013
Foreign currency exchange contracts		$	34		$	13		COGS	$	5		$	10		OIE	$	-4		$	-
Foreign currency exchange contracts			4			-2		SGA expense		3			2		OIE		-			-
Interest rate contracts			-69			-		Interest expense		9			4		N/A		-			-
Commodity contracts			-4			-		COGS		-7			-10		OIE		-			-
Total		$	-35		$	11			$	10		$	6			$	-4		$	-
(a)	Includes the ineffective portion and amount excluded from effectiveness testing.
Derivatives and non-derivatives in net investment hedging relationships
																	Gain (loss)
(millions)																	recognized in AOCI
																	2014			2013
Foreign currency denominated long-term debt																$	86		$	-
Total																$	86		$	-
Derivatives not designated as hedging instruments
															Location of gain		Gain (loss)
															(loss) recognized		recognized in
(millions)															in income		income
																	2014			2013
Foreign currency exchange contracts															OIE	$	1		$	3
Interest rate contracts															Interest expense		-4			-
Commodity contracts															COGS		-73			-37
Commodity contracts															SGA		-5			-
Total																$	-81		$	-34
During the next 12 months, the Company expects $14 million of net deferred gains reported in accumulated other comprehensive income (AOCI) at January 3, 2015 to be reclassified to income, assuming market rates remain constant through contract maturities.
Certain of the Company's derivative instruments contain provisions requiring the Company to post collateral on those derivative instruments that are in a liability position if the Company's credit rating falls below BB+ (S&P), or Baa1 (Moody's). The fair value of all derivative instruments with credit-risk-related contingent features in a liability position on January 3, 2015 was $26 million. If the credit-risk-related contingent features were triggered as of January 3, 2015, the Company would be required to post additional collateral of $26 million. In addition, certain derivative instruments contain provisions that would be triggered in the event the Company defaults on its debt agreements. There were no collateral posting requirements as of January 3, 2015 triggered by credit-risk-related contingent features.
Other fair value measurements
2014 Fair Value Measurements on a Nonrecurring Basis
As part of Project K the Company will be consolidating the usage of and disposing certain long-lived assets, including manufacturing facilities and Corporate owned assets over the term of the program. See Note 3 for more information regarding Project K.
During 2014, long-lived assets of $24 million, related to a manufacturing facility in the Company's U.S. Snacks segment, were written down to an estimated fair value of $3 million due to Project K activities. The Company's calculation of the fair value of long-lived assets is based on Level 3 inputs, including market comparables, market trends and the condition of the assets.
2013 Fair Value Measurements on a Nonrecurring Basis
During 2013, long-lived assets of $97 million, including manufacturing facilities in the Company's U.S. Morning Foods and Asia Pacific reporting units and certain Corporate owned assets, were written down to an estimated fair value of $31 million due to Project K. The Company's calculation of the fair value of long-lived assets is based on Level 3 inputs, including market comparables, market trends and the condition of the assets.
During 2013, the Company recognized additional asset impairment charges totaling $4 million on a manufacturing facility in Australia closed during 2012.
The following table presents level 3 assets that were measured at fair value on the Consolidated Balance Sheet on a nonrecurring basis as of January 3, 2015:
(millions)		Fair Value			Total Loss
Description:
Long-lived assets	$	3		$	-21
Total	$	3		$	-21
The following table presents level 3 assets that were measured at fair value on the Consolidated Balance Sheet on a nonrecurring basis as of December 28, 2013:
(millions)		Fair Value			Total Loss
Description:
Long-lived assets	$	38		$	-70
Total	$	38		$	-70
Financial instruments
The carrying values of the Company's short-term items, including cash, cash equivalents, accounts receivable, accounts payable and notes payable approximate fair value. The fair value of the Company's long-term debt, which are level 2 liabilities, is calculated based on broker quotes and was as follows at January 3, 2015:
(millions)		Fair Value			Carrying Value
Current maturities of long-term debt	$	607		$	607
Long-term debt		6,507			5,935
Total	$	7,114		$	6,542
Counterparty credit risk concentration
The Company is exposed to credit loss in the event of nonperformance by counterparties on derivative financial and commodity contracts. Management believes a concentration of credit risk with respect to derivative counterparties is limited due to the credit ratings and use of master netting and reciprocal collateralization agreements with the counterparties and the use of exchange-traded commodity contracts.
Master netting agreements apply in situations where the Company executes multiple contracts with the same counterparty. If these counterparties fail to perform according to the terms of derivative contracts, this could result in a loss to the Company. As of January 3, 2015, there were no counterparties that represented a significant concentration of credit risk to the Company.
For certain derivative contracts, reciprocal collateralization agreements with counterparties call for the posting of collateral in the form of cash, treasury securities or letters of credit if a fair value loss position to the Company or its counterparties exceeds a certain amount. As of January 3, 2015, the Company had no collateral posting requirements related to reciprocal collateralization agreements. As of January 3, 2015, the Company posted $50 million in margin deposits for exchange-traded commodity derivative instruments, which was reflected as an increase in accounts receivable, net.
Management believes concentrations of credit risk with respect to accounts receivable is limited due to the generally high credit quality of the Company's major customers, as well as the large number and geographic dispersion of smaller customers. However, the Company conducts a disproportionate amount of business with a small number of large multinational grocery retailers, with the five largest accounts encompassing approximately 30% of consolidated trade receivables at January 3, 2015.
Refer to Note 1 for disclosures regarding the Company's accounting policies for derivative instruments.

Contingencies

Contingencies	1 Months Ended
	Jan. 31, 2015
Loss Contingency [Abstract]
Contingencies [Text Block]	NOTE 13
	CONTINGENCIES
	The Company is subject to various legal proceedings, claims, and governmental inspections or investigations in the ordinary course of business covering matters such as general commercial, governmental regulations, antitrust and trade regulations, product liability, environmental, intellectual property, workers' compensation, employment and other actions. These matters are subject to uncertainty and the outcome is not predictable with assurance. The Company uses a combination of insurance and self-insurance for a number of risks, including workers' compensation, general liability, automobile liability and product liability.
	The Company has established accruals for certain matters where losses are deemed probable and reasonably estimable. There are other claims and legal proceedings pending against the Company for which accruals have not been established. It is reasonably possible that some of these matters could result in an unfavorable judgment against the Company and could require payment of claims in amounts that cannot be estimated at January 3, 2015. Based upon current information, management does not expect any of the claims or legal proceedings pending against the Company to have a material impact on the Company's consolidated financial statements.
	In connection with the Company's on-going labor negotiations with the union representing the work-force at our Memphis, TN cereal production facility, the National Labor Relations Board (NLRB) filed a complaint alleging unfair labor practices under the National Labor Relations Act in March 2014. In July 2014, a U.S. District Court judge ruled that the Memphis employees were entitled to return to work while the underlying litigation continues and employees have subsequently returned to work. In August 2014, an NLRB Administrative Law Judge dismissed the complaint that initiated the underlying litigation. The union and the NLRB have appealed that decision and the case continues. This litigation is not expected to have a material effect on the production or distribution of products from the Memphis, TN facility or a material financial impact on the Company. As of January 3, 2015, the Company has not recorded a liability related to this matter as an adverse outcome is not considered probable. The Company will continue to evaluate the likelihood of potential outcomes for this case as the litigation continues.

Venezuela

Venezuela	1 Months Ended
	Feb. 28, 2013
Venezuela Devaluation [Abstract]
Venezuela [Text Block]	NOTE 14
	VENEZUELA
	Venezuela was designated as a highly inflationary economy as of the beginning of the Company's 2010 fiscal year. Gains and losses resulting from the translation of the financial statements of subsidiaries operating in highly inflationary economies are recorded in earnings. In February 2013, the Venezuelan government announced a 46.5% devaluation of the official CADIVI (now named CENCOEX) exchange rate from 4.3 bolivars to 6.3 bolivars to the U.S. dollar. Additionally, the Transaction System for Foreign Currency Denominated Securities (SITME), used between May 2010 and January 2013 to translate the Company's Venezuelan subsidiary's financial statements to U.S. dollars, was eliminated. Accordingly, in February 2013 the Company began using the CENCOEX exchange rate to translate the Company's Venezuelan subsidiary's financial statements to U.S. dollars and in 2013, the Company recognized a $15 million charge as a result of the devaluation of the CENCOEX exchange rate. The CENCOEX exchange is restricted to some raw materials, finished goods, and machinery for sectors considered as national priorities, which is primarily food and medicines.
	In March, 2013, the Venezuelan government announced a new auction-based currency transaction program referred to as SICAD1. SICAD1 allows entities in specific sectors to bid for U.S. dollars to be used for specified import transactions, with the minimum exchange rate to be offered being 6.3 bolivars to the U.S. dollar. As of January 3, 2015, the published SICAD1 rate offered was 12.0 bolivars to the U.S. dollar and availability of U.S. dollars at either exchange rate continues to be limited.
	In January, 2014, the Venezuelan government announced the expansion of the SICAD1 auction program to prospective dividends and royalties and new profit margin controls. As the Company's Venezuelan subsidiary declares dividends or pays royalties in the future, based on the availability of U.S. dollars exchanged under the SICAD1 program, the realized exchange losses on payments made in U.S. dollars would be recognized in earnings. On profit margin controls, the Company continues to ensure the Company is complying with the requirements.
	In February 2014, the Venezuelan government announced plans to launch a third foreign exchange mechanism, known as SICAD2, which became operational on March 24, 2014. SICAD2 relies on U.S. dollar cash and U.S. dollar denominated bonds offered by the Venezuelan Central Bank, PDVSA (the national oil and gas company) and private companies. The Venezuelan government has allowed that all industry sectors will be able to access SICAD2 and has indicated that its use will not be restricted as to purpose. As of January 3, 2015, the published SICAD2 rate was 51.0 bolivars to the U.S. dollar.
	In February 2015, the Venezuelan government announced plans to launch a new foreign exchange mechanism, known as SIMADI, which is expected to become operational in 2015. The SIMADI exchange mechanism, which will replace SICAD2, has been reported to be an open market in which rates will be determined based on supply and demand.
	In light of the current difficult macroeconomic environment in Venezuela, the Company continues to monitor and actively manage its investment and exposures in Venezuela. The Company's Venezuelan business does not rely heavily on imports and when items are imported, they are largely exchanged at the CENCOEX rate. As of January 3, 2015 the Company translated its Venezuelan subsidiary's financial statements to U.S. dollars using the CENCOEX exchange rate. The Company will continue to monitor local conditions, the continued ability to obtain U.S. dollars at the CENCOEX exchange rate, and the use, if applicable, of the SICAD1, SICAD2 or SIMADI, once operational, mechanisms to determine the appropriate rate for translation. For fiscal year 2014, Venezuela represented approximately 2% of total net sales and 5% of total operating profit. As of January 3, 2015, the Company's net monetary assets denominated in the Venezuelan bolivar were approximately $100 million in U.S. dollars applying the CENCOEX exchange rate.
	If the CENCOEX exchange rate were to devalue further or if the currently less favorable SICAD1 exchange rate were extended to apply to a greater portion of the Company's net monetary assets in Venezuela, the Company could recognize a devaluation charge in earnings. The Company continues to monitor the currency developments in Venezuela and take protective measures against currency devaluation which may include converting monetary assets into non-monetary assets which the Company can use in its business.

Quarterly_Financial_Data_unaud

Quarterly Financial Data (unaudited)	12 Months Ended
	Jan. 03, 2015
Quarterly Financial Data [Abstract]
Quarterly Financial Data (unaudited) [Text Block]	NOTE 15
	QUARTERLY FINANCIAL DATA (unaudited)
			Net sales						Gross profit
	(millions)		2014			2013			2014			2013
	First	$	3,742		$	3,861		$	1,504		$	1,393
	Second		3,685			3,714			1,411			1,477
	Third		3,639			3,716			1,292			1,450
	Fourth		3,514			3,501			856			1,783
		$	14,580		$	14,792		$	5,063		$	6,103
	Net income attributable to Kellogg Company							Per share amounts
	(millions)		2014		2013			2014					2013
								Basic		Diluted			Basic		Diluted
	First	$	406	$	311		$	1.13	$	1.12		$	0.86	$	0.85
	Second		295		352			0.82		0.82			0.96		0.96
	Third		224		326			0.63		0.62			0.9		0.9
	Fourth		-293		818			-0.82		-0.82			2.26		2.24
		$	632	$	1,807
	The principal market for trading Kellogg shares is the New York Stock Exchange (NYSE). At January 3, 2015, the closing price (on the NYSE) was $65.48 and there were 37,314 shareholders of record.
	Dividends paid per share and the quarterly price ranges on the NYSE during the last two years were:
				Dividend		Stock price
	2014 - Quarter			per share		High		Low
	First		$	0.46	$	62.13	$	56.9
	Second			0.46		69.39		62.62
	Third			0.49		66.41		59.83
	Fourth			0.49		67.24		59.7
			$	1.9
	2013 - Quarter
	First		$	0.44	$	64.75	$	55.02
	Second			0.44		66.84		61.03
	Third			0.46		67.98		58.59
	Fourth			0.46		64.92		58.01
			$	1.8
	During 2014, the Company recorded the following charges / (gains) in operating profit:
						2014
	(millions)					First			Second			Third			Fourth		Full Year
	Restructuring and cost reduction charges				$	54		$	78		$	92		$	74	$	298
	(Gains) / losses on mark-to-market adjustments					-116			12			66			822		784
					$	-62		$	90		$	158		$	896	$	1,082
	During 2013, the Company recorded the following charges / (gains) in operating profit:
						2013
	(millions)					First			Second			Third			Fourth		Full Year
	Restructuring and cost reduction charges				$	13		$	7		$	29		$	201	$	250
	(Gains) / losses on mark-to-market adjustments					54			7			-2			-1,006		-947
					$	67		$	14		$	27		$	-805	$	-697

Reportable_Segments

Reportable Segments	12 Months Ended
	Jan. 03, 2015
Reportable Segments [Abstract]
Reportable Segments [Text Block]	NOTE 16
	REPORTABLE SEGMENTS
	Kellogg Company is the world's leading producer of cereal, second largest producer of cookies and crackers and a leading producer of savory snacks and frozen foods. Additional product offerings include toaster pastries, cereal bars, fruit-flavored snacks and veggie foods. Kellogg products are manufactured and marketed globally. Principal markets for these products include the United States and United Kingdom.
	The Company has the following reportable segments: U.S. Morning Foods; U.S. Snacks; U.S. Specialty; North America Other; Europe; Latin America; and Asia Pacific.  The Company manages its operations through eight operating segments that are based on product category or geographic location. These operating segments are evaluated for similarity with regards to economic characteristics, products, production processes, types or classes of customers, distribution methods and regulatory environments to determine if they can be aggregated into reportable segments.  Beginning in the first quarter of 2013, the Kashi operating segment, which was formerly aggregated with the U.S. Morning Foods operating segment and reported as U.S. Morning Foods and Kashi, was revised due to a reorganization of the business. Kashi operating segment results of prior years were recast between U.S. Morning Foods and U.S. Snacks to conform with current presentation. The reportable segments are discussed in greater detail below.
	The U.S. Morning Foods operating segment includes cereal, toaster pastries, health and wellness bars, and beverages.
	U.S. Snacks includes cookies, crackers, cereal bars, savory snacks and fruit-flavored snacks.
	U.S. Specialty primarily represents food away from home channels, including food service, convenience, vending, Girl Scouts and food manufacturing. The food service business is mostly non-commercial, serving institutions such as schools and hospitals. The convenience business includes traditional convenience stores as well as alternate retailing outlets.
	North America Other includes the U.S. Frozen and Canada operating segments.  As these operating segments are not considered economically similar enough to aggregate with other operating segments and are immaterial for separate disclosure, they have been grouped together as a single reportable segment.
	The three remaining reportable segments are based on geographic location – Europe which consists principally of European countries; Latin America which is comprised of Central and South America and includes Mexico; and Asia Pacific which is comprised of South Africa, Australia and other Asian and Pacific markets.
	The measurement of reportable segment results is based on segment operating profit which is generally consistent with the presentation of operating profit in the Consolidated Statement of Income. Intercompany transactions between operating segments were insignificant in all periods presented.
	(millions)				2014			2013			2012
	Net sales
		U.S. Morning Foods		$	3,338		$	3,465		$	3,533
		U.S. Snacks			3,495			3,534			3,400
		U.S. Specialty			1,198			1,202			1,121
		North America Other			1,468			1,515			1,485
		Europe			2,887			2,860			2,527
		Latin America			1,205			1,195			1,121
		Asia Pacific			989			1,021			1,010
		Consolidated		$	14,580		$	14,792		$	14,197
	Operating profit
		U.S. Morning Foods		$	490		$	485		$	588
		U.S. Snacks			395			447			476
		U.S. Specialty			266			265			241
		North America Other			252			275			265
		Europe			240			256			261
		Latin America			169			157			167
		Asia Pacific			45			60			85
		Total Reportable Segments			1,857			1,945			2,083
		Corporate			-833			892			-521
		Consolidated		$	1,024		$	2,837		$	1,562
	Depreciation and amortization (a)
		U.S. Morning Foods		$	136		$	181		$	132
		U.S. Snacks			166			144			123
		U.S. Specialty			10			8			5
		North America Other			32			30			34
		Europe			92			84			66
		Latin America			32			29			26
		Asia Pacific			31			40			55
		Total Reportable Segments			499			516			441
		Corporate			4			16			7
		Consolidated		$	503		$	532		$	448
	(a)	Includes asset impairment charges as discussed in Note 12.
	Certain items such as interest expense and income taxes, while not included in the measure of reportable segment operating results, are regularly reviewed by Management for the Company's internationally-based reportable segments as shown below.
	(millions)				2014			2013			2012
	Interest expense
		North America Other		$	6		$	6		$	4
		Europe			5			6			4
		Latin America			3			1			4
		Asia Pacific			1			3			4
		Corporate			194			219			245
		Consolidated		$	209		$	235		$	261
	Income taxes
		Europe		$	-3		$	4		$	-21
		Latin America			42			35			36
		Asia Pacific			-1			6			9
		Corporate & North America			148			747			339
		Consolidated		$	186		$	792		$	363
	Management reviews balance sheet information, including total assets, based on geography. For all North American-based operating segments, balance sheet information is reviewed by Management in total and not on an individual operating segment basis.
	(millions)				2014			2013			2012
	Total assets
		North America		$	10,489		$	10,643		$	10,602
		Europe			2,893			3,007			3,014
		Latin America			905			1,052			861
	Asia Pacific			1,111			1,049			1,107
	Corporate			1,796			2,583			3,384
	Elimination entries			-2,041			-2,860			-3,799
	Consolidated		$	15,153		$	15,474		$	15,169
Additions to long-lived assets
	North America		$	295		$	296		$	549
	Europe			129			182			209
	Latin America			31			70			40
	Asia Pacific			120			85			79
	Corporate			7			4			14
	Consolidated		$	582		$	637		$	891
The Company's largest customer, Wal-Mart Stores, Inc. and its affiliates, accounted for approximately 21% of consolidated net sales during 2014, 21% in 2013, and 20% in 2012, comprised principally of sales within the United States.
Supplemental geographic information is provided below for net sales to external customers and long-lived assets:
(millions)				2014			2013			2012
Net sales
	United States		$	8,876		$	9,060		$	8,875
	All other countries			5,704			5,732			5,322
	Consolidated		$	14,580		$	14,792		$	14,197
Long-lived assets
	United States		$	2,283		$	2,343		$	2,427
	All other countries			1,486			1,513			1,355
	Consolidated		$	3,769		$	3,856		$	3,782
Supplemental product information is provided below for net sales to external customers:
(millions)			2014			2013			2012
	Retail channel cereal	$	6,268		$	6,451		$	6,652
	Retail channel snacks		6,622			6,625			5,891
	Frozen and specialty channels		1,690			1,716			1,654
Consolidated		$	14,580		$	14,792		$	14,197

Supplemental_Financial_Stateme

Supplemental Financial Statement Data	12 Months Ended
	Jan. 03, 2015
Supplemental Financial Statement Data [Abstract]
Supplemental Financial Statement Data [Text Block]	NOTE 17
	SUPPLEMENTAL FINANCIAL STATEMENT DATA
	Consolidated Statement of Income
	(millions)			2014		2013		2012
	Research and development expense		$	199	$	199	$	206
	Advertising expense		$	1,094	$	1,131	$	1,120
	Consolidated Balance Sheet			2014		2013
	(millions)
	Trade receivables		$	1,101	$	1,231
	Allowance for doubtful accounts			-7		-5
	Refundable income taxes			16		52
	Other receivables			166		146
		Accounts receivable, net	$	1,276	$	1,424
	Raw materials and supplies		$	327	$	319
	Finished goods and materials in process			952		929
		Inventories	$	1,279	$	1,248
	Deferred income taxes		$	184	$	195
	Other prepaid assets			158		127
		Other current assets	$	342	$	322
	Land		$	105	$	125
	Buildings			2,154		2,155
	Machinery and equipment			6,017		6,059
	Capitalized software			327		325
	Construction in progress			692		693
	Accumulated depreciation			-5,526		-5,501
		Property, net	$	3,769	$	3,856
	Other intangibles		$	2,338	$	2,401
	Accumulated amortization			-43		-34
		Other intangibles, net	$	2,295	$	2,367
	Pension		$	250	$	419
	Other			528		514
		Other assets	$	778	$	933
	Accrued income taxes		$	39	$	69
	Accrued salaries and wages			320		327
	Accrued advertising and promotion			446		476
	Other			596		503
		Other current liabilities	$	1,401	$	1,375
	Nonpension postretirement benefits		$	82	$	68
	Other			418		429
		Other liabilities	$	500	$	497
	Allowance for doubtful accounts			2014		2013		2012
	(millions)
	Balance at beginning of year		$	5	$	6	$	8
	Additions charged to expense			6		2		1
	Doubtful accounts charged to reserve			-4		-3		-3
	Balance at end of year		$	7	$	5	$	6

Subsequent_Event

Subsequent Event	12 Months Ended
	Jan. 03, 2015
Subsequent Events [Abstract]
Subsequent Events [Text Block]	NOTE 18
	SUBSEQUENT EVENTS
	In January 2015 the Company acquired a majority stake in Bisco Misr, the leading packaged biscuits company in Egypt, for approximately $125 million. The acquisition was funded with short-term debt.

Accounting_Policies_Policies

Accounting Policies (Policies)	12 Months Ended
	Jan. 03, 2015
Accounting Policies [Abstract]
Basis of presentation [Policy Text Block]	Basis of presentation
	The consolidated financial statements include the accounts of the Kellogg Company, those of the subsidiaries that it controls due to ownership of a majority voting interest and the accounts of the variable interest entities (VIEs) of which Kellogg Company is the primary beneficiary (Kellogg or the Company). The Company continually evaluates its involvement with VIEs to determine whether it has variable interests and is the primary beneficiary of the VIE. When these criteria are met, the Company is required to consolidate the VIE. The Company's share of earnings or losses of nonconsolidated affiliates is included in its consolidated operating results using the equity method of accounting when it is able to exercise significant influence over the operating and financial decisions of the affiliate. The Company uses the cost method of accounting if it is not able to exercise significant influence over the operating and financial decisions of the affiliate. Intercompany balances and transactions are eliminated.
	The Company's fiscal year normally ends on the Saturday closest to December 31 and as a result, a 53rd week is added approximately every sixth year. The Company's 2013 and 2012 fiscal years each contained 52 weeks and ended on December 28, 2013 and December 29, 2012, respectively. The Company's 2014 fiscal year ended on January 3, 2015, and included a 53rd week. While quarters normally consist of 13-week periods, the fourth quarter of fiscal 2014 included a 14th week.
Use of estimates [Policy Text Block]	Use of estimates
	The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the periods reported. Actual results could differ from those estimates.
Cash and cash equivalents [Policy Text Block]	Cash and cash equivalents
	Highly liquid investments with remaining stated maturities of three months or less when purchased are considered cash equivalents and recorded at cost.
Accounts receivable [Policy Text Block]	Accounts receivable
	Accounts receivable consists principally of trade receivables, which are recorded at the invoiced amount, net of allowances for doubtful accounts and prompt payment discounts. Trade receivables do not bear interest. The allowance for doubtful accounts represents management's estimate of the amount of probable credit losses in existing accounts receivable, as determined from a review of past due balances and other specific account data. Account balances are written off against the allowance when management determines the receivable is uncollectible. The Company does not have off-balance sheet credit exposure related to its customers.
Inventories [Policy Text Block]	Inventories
	Inventories are valued at the lower of cost or market. Cost is determined on an average cost basis.
Property [Policy Text Block]	Property
	The Company's property consists mainly of plants and equipment used for manufacturing activities. These assets are recorded at cost and depreciated over estimated useful lives using straight-line methods for financial reporting and accelerated methods, where permitted, for tax reporting. Major property categories are depreciated over various periods as follows (in years): manufacturing machinery and equipment 5-30; office equipment 4-5; computer equipment and capitalized software 3-7; building components 15-25; building structures 50. Cost includes interest associated with significant capital projects. Plant and equipment are reviewed for impairment when conditions indicate that the carrying value may not be recoverable. Such conditions include an extended period of idleness or a plan of disposal. Assets to be disposed of at a future date are depreciated over the remaining period of use. Assets to be sold are written down to realizable value at the time the assets are being actively marketed for sale and a sale is expected to occur within one year. As of year-end 2014 and 2013, the carrying value of assets held for sale was insignificant.
Goodwill and other intangible assets [Policy Text Block]	Goodwill and other intangible assets
	Goodwill and indefinite-lived intangibles are not amortized, but are tested at least annually for impairment of value and whenever events or changes in circumstances indicate the carrying amount of the asset may be impaired. An intangible asset with a finite life is amortized on a straight-line basis over the estimated useful life.
	For the goodwill impairment test, the fair value of the reporting units are estimated based on market multiples. This approach employs market multiples based on earnings before interest, taxes, depreciation and amortization and earnings for companies that are comparable to the Company's reporting units. In the event the fair value determined using the market multiple approach is close to carrying value, the Company may supplement the fair value determination using discounted cash flows. The assumptions used for the impairment test are consistent with those utilized by a market participant performing similar valuations for the Company's reporting units.
	Similarly, impairment testing of other intangible assets requires a comparison of carrying value to fair value of that particular asset. Fair values of non-goodwill intangible assets are based primarily on projections of future cash flows to be generated from that asset. For instance, cash flows related to a particular trademark would be based on a projected royalty stream attributable to branded product sales, discounted at rates consistent with rates used by market participants.
	These estimates are made using various inputs including historical data, current and anticipated market conditions, management plans, and market comparables.
Accounts Payable [Policy Text Block]	Accounts payable
	Beginning in 2014, the Company has an agreement with a third party to provide an accounts payable tracking system which facilitates participating suppliers' ability to monitor and, if elected, sell to designated third-party financial institutions, payment obligations of the Company.  Participating suppliers may, at their sole discretion, make offers to sell one or more payment obligations of the Company prior to their scheduled due dates at a discounted price to participating financial institutions.  The Company's goal in entering into this agreement is to capture overall supplier savings, in the form of pricing, payment terms or vendor funding, created by facilitating suppliers' ability to sell receivables, while providing them with greater working capital flexibility. We have no economic interest in the sale of these suppliers' receivables and no direct financial relationship with the financial institutions concerning these services. The Company's obligations to its suppliers, including amounts due and scheduled payment dates, are not impacted by suppliers' decisions to sell amounts under this arrangement.  However, the Company's right to offset balances due from suppliers against payment obligations is restricted by this agreement for those payment obligations that have been sold by suppliers.  As of January 3, 2015, $236 million of the Company's outstanding payment obligations had been placed in the accounts payable tracking system, and participating suppliers had sold $184 million of those payment obligations to participating financial institutions.
Revenue recognition [Policy Text Block]	Revenue recognition
	The Company recognizes sales upon delivery of its products to customers. Revenue, which includes shipping and handling charges billed to the customer, is reported net of applicable provisions for discounts, returns, allowances, and various government withholding taxes. Methodologies for determining these provisions are dependent on local customer pricing and promotional practices, which range from contractually fixed percentage price reductions to reimbursement based on actual occurrence or performance. Where applicable, future reimbursements are estimated based on a combination of historical patterns and future expectations regarding specific in-market product performance.
Advertising and promotion [Policy Text Block]	Advertising and promotion
	The Company expenses production costs of advertising the first time the advertising takes place. Advertising expense is classified in selling, general and administrative (SGA) expense.
	The Company classifies promotional payments to its customers, the cost of consumer coupons, and other cash redemption offers in net sales. The cost of promotional package inserts is recorded in cost of goods sold (COGS). Other types of consumer promotional expenditures are recorded in SGA expense.
Research and development [Policy Text Block]	Research and development
	The costs of research and development (R&D) are expensed as incurred and are classified in SGA expense. R&D includes expenditures for new product and process innovation, as well as significant technological improvements to existing products and processes. The Company's R&D expenditures primarily consist of internal salaries, wages, consulting, and supplies attributable to time spent on R&D activities. Other costs include depreciation and maintenance of research facilities and equipment, including assets at manufacturing locations that are temporarily engaged in pilot plant activities.
Stock-based compensation [Policy Text Block]	Stock-based compensation
	The Company uses stock-based compensation, including stock options, restricted stock, restricted stock units, and executive performance shares, to provide long-term performance incentives for its global workforce.
	The Company classifies pre-tax stock compensation expense principally in SGA expense within its corporate operations. Expense attributable to awards of equity instruments is recorded in capital in excess of par value in the Consolidated Balance Sheet.
	Certain of the Company's stock-based compensation plans contain provisions that accelerate vesting of awards upon retirement, disability, or death of eligible employees and directors. A stock-based award is considered vested for expense attribution purposes when the employee's retention of the award is no longer contingent on providing subsequent service. Accordingly, the Company recognizes compensation cost immediately for awards granted to retirement-eligible individuals or over the period from the grant date to the date retirement eligibility is achieved, if less than the stated vesting period.
	The Company recognizes compensation cost for stock option awards that have a graded vesting schedule on a straight-line basis over the requisite service period for the entire award.
	Corporate income tax benefits realized upon exercise or vesting of an award in excess of that previously recognized in earnings (“windfall tax benefit”) is recorded in other financing activities in the Consolidated Statement of Cash Flows. Realized windfall tax benefits are credited to capital in excess of par value in the Consolidated Balance Sheet. Realized shortfall tax benefits (amounts which are less than that previously recognized in earnings) are first offset against the cumulative balance of windfall tax benefits, if any, and then charged directly to income tax expense. The Company currently has sufficient cumulative windfall tax benefits to absorb arising shortfalls, such that earnings were not affected during the periods presented. Correspondingly, the Company includes the impact of pro forma deferred tax assets (i.e., the “as if” windfall or shortfall) for purposes of determining assumed proceeds in the treasury stock calculation of diluted earnings per share.
Income taxes [Policy Text Block]	Income taxes
	The Company recognizes uncertain tax positions based on a benefit recognition model. Provided that the tax position is deemed more likely than not of being sustained, the Company recognizes the largest amount of tax benefit that is greater than 50 percent likely of being ultimately realized upon settlement. The tax position is derecognized when it is no longer more likely than not of being sustained. The Company classifies income tax-related interest and penalties as interest expense and SGA expense, respectively, on the Consolidated Statement of Income. The current portion of the Company's unrecognized tax benefits is presented in the Consolidated Balance Sheet in other current assets and other current liabilities, and the amounts expected to be settled after one year are recorded in other assets and other liabilities.
	Income taxes are provided on the portion of foreign earnings that is expected to be remitted to and taxable in the United States.
Derivative instruments [Policy Text Block]	Derivative Instruments
	The fair value of derivative instruments is recorded in other current assets, other assets, other current liabilities or other liabilities. Gains and losses representing either hedge ineffectiveness, hedge components excluded from the assessment of effectiveness, or hedges of translational exposure are recorded in the Consolidated Statement of Income in other income (expense), net (OIE). In the Consolidated Statement of Cash Flows, settlements of cash flow and fair value hedges are classified as an operating activity; settlements of all other derivative instruments, including instruments for which hedge accounting has been discontinued, are classified consistent with the nature of the instrument.
	Cash flow hedges. Qualifying derivatives are accounted for as cash flow hedges when the hedged item is a forecasted transaction. Gains and losses on these instruments are recorded in other comprehensive income until the underlying transaction is recorded in earnings. When the hedged item is realized, gains or losses are reclassified from accumulated other comprehensive income (loss) (AOCI) to the Consolidated Statement of Income on the same line item as the underlying transaction.
	Fair value hedges. Qualifying derivatives are accounted for as fair value hedges when the hedged item is a recognized asset, liability, or firm commitment. Gains and losses on these instruments are recorded in earnings, offsetting gains and losses on the hedged item.
	Net investment hedges. Qualifying derivative and nonderivative financial instruments are accounted for as net investment hedges when the hedged item is a nonfunctional currency investment in a subsidiary. Gains and losses on these instruments are included in foreign currency translation adjustments in AOCI.
	Derivatives not designated for hedge accounting. Gains and losses on these instruments are recorded in the Consolidated Statement of Income, on the same line item as the underlying hedged item.
	Other contracts. The Company periodically enters into foreign currency forward contracts and options to reduce volatility in the translation of foreign currency earnings to U.S. dollars. Gains and losses on these instruments are recorded in OIE, generally reducing the exposure to translation volatility during a full-year period.
	Foreign currency exchange risk. The Company is exposed to fluctuations in foreign currency cash flows related primarily to third-party purchases, intercompany transactions and when applicable, nonfunctional currency denominated third-party debt. The Company is also exposed to fluctuations in the value of foreign currency investments in subsidiaries and cash flows related to repatriation of these investments. Additionally, the Company is exposed to volatility in the translation of foreign currency denominated earnings to U.S. dollars. Management assesses foreign currency risk based on transactional cash flows and translational volatility and may enter into forward contracts, options, and currency swaps to reduce fluctuations in long or short currency positions. Forward contracts and options are generally less than 18 months duration. Currency swap agreements are established in conjunction with the term of underlying debt issues.
	For foreign currency cash flow and fair value hedges, the assessment of effectiveness is generally based on changes in spot rates. Changes in time value are reported in OIE.
	Interest rate risk. The Company is exposed to interest rate volatility with regard to future issuances of fixed rate debt and existing and future issuances of variable rate debt. The Company periodically uses interest rate swaps, including forward-starting swaps, to reduce interest rate volatility and funding costs associated with certain debt issues, and to achieve a desired proportion of variable versus fixed rate debt, based on current and projected market conditions.
	Fixed-to-variable interest rate swaps are accounted for as fair value hedges and the assessment of effectiveness is based on changes in the fair value of the underlying debt, using incremental borrowing rates currently available on loans with similar terms and maturities.
	Price risk. The Company is exposed to price fluctuations primarily as a result of anticipated purchases of raw and packaging materials, fuel, and energy. The Company has historically used the combination of long-term contracts with suppliers, and exchange-traded futures and option contracts to reduce price fluctuations in a desired percentage of forecasted raw material purchases over a duration of generally less than 18 months.
	Certain commodity contracts are accounted for as cash flow hedges, while others are marked to market through earnings. The assessment of effectiveness for exchange-traded instruments is based on changes in futures prices. The assessment of effectiveness for over-the-counter transactions is based on changes in designated indices.
Pension benefits, nonpension postretirement and postemployment benefits [Policy Text Block]	Pension benefits, nonpension postretirement and postemployment benefits
	The Company sponsors a number of U.S. and foreign plans to provide pension, health care, and other welfare benefits to retired employees, as well as salary continuance, severance, and long-term disability to former or inactive employees.
	The recognition of benefit expense is based on actuarial assumptions, such as discount rate, long-term rate of compensation increase, long-term rate of return on plan assets and health care cost trend rate, and is reported in COGS and SGA expense on the Consolidated Statement of Income.
	Postemployment benefits. The Company recognizes an obligation for postemployment benefit plans that vest or accumulate with service. Obligations associated with the Company's postemployment benefit plans, which are unfunded, are included in other current liabilities and other liabilities on the Consolidated Balance Sheet. All gains and losses are recognized over the average remaining service period of active plan participants.
	Postemployment benefits that do not vest or accumulate with service or benefits to employees in excess of those specified in the respective plans are expensed as incurred.
	Pension and nonpension postretirement benefits. The Company recognizes actuarial gains and losses in operating results in the year in which they occur. Experience gains and losses are recognized annually as of the measurement date, which is the Company's fiscal year-end, or when remeasurement is otherwise required under generally accepted accounting principles. The Company uses the fair value of plan assets to calculate the expected return on plan assets.
	Reportable segments are allocated service cost and amortization of prior service cost. All other components of pension and postretirement benefit expense, including interest cost, expected return on assets, and experience gains and losses are considered unallocated corporate costs and are not included in the measure of reportable segment operating results. See Note 16 for more information on reportable segments.
	Assumed mortality rates of plan participants are a critical estimate in measuring the expected payments a participant will receive over their lifetime and the amount of expense recognized. On October 27, 2014, the Society of Actuaries' (SOA) published updated mortality tables and an updated improvement scale, which both reflect improved longevity. In determining the appropriate mortality assumptions as of January 3, 2015, the Company considered the SOA's updated mortality tables as well as other mortality information available from the Social Security Administration to develop assumptions aligned with the Company's expectation of future improvement rates.
	Management reviews the Company's expected long-term rates of return annually; however, the benefit trust investment performance for one particular year does not, by itself, significantly influence this evaluation. The expected rates of return are generally not revised provided these rates fall between the 25th and 75th percentile of expected long-term returns, as determined by the Company's modeling process.
	For defined benefit pension and postretirement plans, the Company records the net overfunded or underfunded position as a pension asset or pension liability on the Consolidated Balance Sheet.
New accounting standards [Policy Text Block]	New accounting standards
	Presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists. In July 2013, the Financial Accounting Standards Board (FASB) issued an Accounting Standards Update (ASU) which provides guidance on financial statement presentation of unrecognized tax benefits when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists. This ASU is expected to eliminate diversity in practice resulting from lack of previously existing guidance. It applies to all entities with unrecognized tax benefits that also have tax loss or tax credit carryforwards in the same tax jurisdiction as of the reporting date. The Company adopted the revised guidance in 2014 with no significant impact to the Consolidated Financial Statements.
	Reporting of amounts reclassified out of Accumulated Other Comprehensive Income. In February 2013, the FASB issued an updated accounting standard requiring entities to present information about reclassifications out of accumulated other comprehensive income in a single note or on the face of the financial statements. The Company adopted the updated standard in 2013.
	Indefinite-lived intangible asset impairment testing. In July 2012, the FASB issued an ASU to allow entities the option to first assess qualitative factors to determine whether it is necessary to perform the quantitative indefinite-lived intangible asset impairment test. Under the updated standard an entity would not be required to perform the quantitative impairment test unless the entity determines, based on a qualitative assessment, that it is more likely than not that an indefinite-lived intangible asset is impaired. The Company adopted the revised guidance in 2013, with no impact to the Consolidated Financial Statements.
	Accounting standards to be adopted in future periods
	In May 2014, the FASB issued an ASU which provides guidance for accounting for revenue from contracts with customers. The core principle of this ASU is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration the entity expects to be entitled in exchange for those goods or services. To achieve that core principle, an entity would be required to apply the following five steps: 1) identify the contract(s) with a customer; 2) identify the performance obligations in the contract; 3) determine the transaction price; 4) allocate the transaction price to the performance obligations in the contract and 5) recognize revenue when (or as) the entity satisfies a performance obligation. The ASU is effective for fiscal years, and interim periods within those years, beginning after December 15, 2016. Early adoption is not permitted. Entities will have the option to apply the final standard retrospectively or use a modified retrospective method, recognizing the cumulative effect of the ASU in retained earnings at the date of initial application. An entity will not restate prior periods if it uses the modified retrospective method, but will be required to disclose the amount by which each financial statement line item is affected in the current reporting period by the application of the ASU as compared to the guidance in effect prior to the change, as well as reasons for significant changes. The Company will adopt the updated standard in the first quarter of 2017. The Company is currently evaluating the impact that implementing this ASU will have on its financial statements and disclosures, as well as whether it will use the retrospective or modified retrospective method of adoption.

Goodwill_and_Other_Intangible_1

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
	Jan. 03, 2015
Acquisitions, Goodwill and Other Intangible Assets [Abstract]
Schedule of final acquired assets and assumed liabilities [Table Text Block]	(millions)				31-May-12
	Accounts receivable, net			$	128
	Inventories				103
	Other prepaid assets				18
	Property				317
	Goodwill				1,319
	Other intangibles:
		Definite-lived intangible assets			79
		Brand			776
	Other assets:
		Deferred income taxes			23
		Other			16
	Notes payable				-3
	Accounts payable				-9
	Other current liabilities				-24
	Other liabilities				-75
				$	2,668
Schedule of Carrying Amount of Goodwill [Table Text Block]	Changes in the carrying amount of goodwill
			U.S.							North
			Morning			U.S.		U.S.		America				Latin		Asia		Consoli-
	(millions)		Foods			Snacks		Specialty		Other		Europe		America		Pacific		dated
	29-Dec-12	$	133		$	3,767	$	82	$	280	$	438	$	92	$	246	$	5,038
	Pringles goodwill		-			-		-		-		10		-		3		13
	Other goodwill		-			12		-		-		-		-		-		12
	Currency translation adjustment		-			-		-		-2		4		-3		-11		-12
	28-Dec-13	$	133		$	3,779	$	82	$	278	$	452	$	89	$	238	$	5,051
	Currency translation adjustment		-			-		-		-5		-63		-6		-6		-80
	3-Jan-15	$	133		$	3,779	$	82	$	273	$	389	$	83	$	232	$	4,971
Schedule of Intangible Assets Subject to Amortization [Table Text Block]
	Intangible assets subject to amortization
	(millions)
			U.S.							North
			Morning			U.S.		U.S.		America				Latin		Asia		Consoli-
	Gross carrying amount		Foods*			Snacks*		Specialty		Other		Europe*		America*		Pacific		dated
	29-Dec-12	$	8		$	65	$	-	$	5	$	41	$	6	$	10	$	135
	Currency translation adjustment		-			-		-		-		1		-		-		1
	28-Dec-13	$	8		$	65	$	-	$	5	$	42	$	6	$	10	$	136
	Currency translation adjustment		-			-		-		-		-4		-		-		-4
	3-Jan-15	$	8		$	65	$	-	$	5	$	38	$	6	$	10	$	132
	Accumulated Amortization
	29-Dec-12	$	8		$	7	$	-	$	3	$	1	$	6	$	-	$	25
	Amortization		-			4		-		1		3		-		1		9
	28-Dec-13	$	8		$	11	$	-	$	4	$	4	$	6	$	1	$	34
	Amortization		-			5		-		-		3		-		1		9
	3-Jan-15	$	8		$	16	$	-	$	4	$	7	$	6	$	2	$	43
	Intangible assets subject to amortization, net
	29-Dec-12	$	-		$	58	$	-	$	2	$	40	$	-	$	10	$	110
	Amortization		-			-4		-		-1		-3		-		-1		-9
	Currency translation adjustment		-			-		-		-		1		-		-		1
	28-Dec-13	$	-		$	54	$	-	$	1	$	38	$	-	$	9	$	102
	Amortization (a)		-			-5		-		-		-3		-		-1		-9
	Currency translation adjustment		-			-		-		-		-4		-		-		-4
	3-Jan-15	$	-		$	49	$	-	$	1	$	31	$	-	$	8	$	89
	* Certain fully amortized intangible assets which were no longer utilized by the Company have been written off and revised in prior period presentation. The impact to the reporting segments are as follows (millions): U.S. Morning Foods - $20; U.S. Snacks - $5; Europe - $2; Latin America - $1.
	(a) The currently estimated aggregate amortization expense for each of the next five succeeding fiscal periods is approximately $9 million per year.
Schedule of Intangible Assets not Subject to Amortization [Table Text Block]
	Intangible assets not subject to amortization
	(millions)
			U.S.							North
			Morning			U.S.		U.S.	America					Latin		Asia		Consoli-
	(millions)		Foods		Snacks			Specialty		Other		Europe	America			Pacific		dated
	29-Dec-12	$	63		$	1,625	$	-	$	95	$	466	$	-	$	-	$	2,249
	Currency translation adjustment		-			-		-		-		16		-		-		16
	28-Dec-13	$	63		$	1,625	$	-	$	95	$	482	$	-	$	-	$	2,265
	Currency translation adjustment		-			-		-		-		-59		-		-		-59
	3-Jan-15	$	63		$	1,625	$	-	$	95	$	423	$	-	$	-	$	2,206

Exit_or_Disposal_Activities_Ta

Exit or Disposal Activities (Tables)	12 Months Ended
	Jan. 03, 2015
Exit or Disposal Activities [Abstract]
Schedule of Restructuring and Related Costs [Text Block]									Program costs to date
	(millions)		2014		2013		2012		3-Jan-15
	Employee related costs	$	90	$	114	$	-	$	197
	Asset related costs		37		10		4		43
	Asset impairment		21		70		17		87
	Other costs		150		56		35		179
	Total	$	298	$	250	$	56	$	506
									Program costs to date
	(millions)		2014		2013		2012		3-Jan-15
	U.S. Morning Foods	$	60	$	109	$	16	$	160
	U.S. Snacks		57		30		10		76
	U.S. Specialty		3		5		1		6
	North America Other		18		11		6		27
	Europe		80		27		3		99
	Latin America		8		5		2		12
	Asia Pacific		37		32		18		61
	Corporate		35		31		-		65
	Total	$	298	$	250	$	56	$	506
Schedule of Restructuring Reserve by Type of Cost [Text Block]			Employee Related		Asset		Asset Related		Other
	(millions)		Costs		Impairment		Costs		Costs		Total
	Liability as of December 28, 2013	$	66	$	-	$	-	$	12	$	78
	2014 restructuring charges		90		21		37		150		298
	Cash payments		-84		-		-24		-148		-256
	Non-cash charges and other (a)		24		-21		-13		-		-10
	Liability as of January 3, 2015	$	96	$	-	$	-	$	14	$	110
	(a) Employee related non-cash charges consist of pension curtailment benefit.

Equity_Tables

Equity (Tables)	12 Months Ended
	Jan. 03, 2015
Equity [Abstract]
Earnings per Share [Table Text Block]
				Net income	Average
				attributable to	shares			Earnings
	(millions, except per share data)			Kellogg Company	outstanding			per share
	2014
		Basic	$	632	358		$	1.76
		Dilutive potential common shares			2			-0.01
		Diluted	$	632	360		$	1.75
	2013
		Basic	$	1,807	363		$	4.98
		Dilutive potential common shares			2			-0.04
		Diluted	$	1,807	365		$	4.94
	2012
		Basic	$	961	358		$	2.68
		Dilutive potential common shares			2			-0.01
		Diluted	$	961	360		$	2.67
Reclassification Out Of Other Accumulated Comprehensive Other Income [Table Text Block]	Reclassifications out of Accumulated Other Comprehensive Income (AOCI) for the year ended January 3, 2015 and December 28, 2013, consisted of the following:
	Details about AOCI		Amount reclassified from AOCI						Line item impacted
	components		2014					2013	within Income Statement
	(millions)
	Gains and losses on cash flow hedges:
	Foreign currency exchange contracts	$	-5				$	-10	COGS
	Foreign currency exchange contracts		-3					-2	SGA
	Interest rate contracts		-9					-4	Interest expense
	Commodity contracts		7					10	COGS
		$	-10				$	-6	Total before tax
			2					-	Tax (expense) benefit
		$	-8				$	-6	Net of tax
	Amortization of postretirement and postemployment benefits:
	Net experience loss	$	3				$	5	See Notes 8 and 9 for further details
	Prior service cost		10					13	See Notes 8 and 9 for further details
		$	13				$	18	Total before tax
			-4					-6	Tax (expense) benefit
		$	9				$	12	Net of tax
	Total reclassifications	$	1				$	6	Net of tax
Accumulated Other Comprehensive Income (Loss) [Table Text Block]	Accumulated other comprehensive income (loss) as of January 3, 2015 and December 28, 2013 consisted of the following:
				January 3,		December 28,
	(millions)			2015		2013
	Foreign currency translation adjustments		$	-1,119	$	-856
	Cash flow hedges — unrealized net gain (loss)			-24		1
	Postretirement and postemployment benefits:
		Net experience loss		-18		-15
		Prior service cost		-52		-66
	Total accumulated other comprehensive income (loss)		$	-1,213	$	-936

Leases_and_Other_Commitments_T

Leases and Other Commitments (Tables)	12 Months Ended
	Jan. 03, 2015
Leases [Abstract]
Operating leases and capital leases [Table Text Block]			Operating		Capital
	(millions)		leases		leases
	2015	$	176	$	1
	2016		157		1
	2017		119		1
	2018		90		1
	2019		64		1
	2020 and beyond		115		1
	Total minimum payments	$	721	$	6
	Amount representing interest				-1
	Obligations under capital leases				5
	Obligations due within one year				-1
	Long-term obligations under capital leases			$	4

Debt_Tables

Debt (Tables)	12 Months Ended
	Jan. 03, 2015
Debt [Abstract]
Components of Notes Payable [Table Text Block]	(millions)			2014						2013
				Principal amount		Effective interest rate				Principal amount	Effective interest rate
	U.S. commercial paper		$	681		0.36	%		$	249	0.22	%
	Europe commercial paper			96		0.09				437	0.23
	Bank borrowings			51						53
	Total		$	828					$	739
Long-term debt schedule [Table Text Block]	(millions)				2014			2013
	(a)	7.45% U.S. Dollar Debentures due 2031		$	1,090		$	1,089
	(b)	4.0% U.S. Dollar Notes due 2020			842			974
	(c)	4.45% U.S. Dollar Notes due 2016			760			767
	(d)	1.75% Euro Notes due 2021			597			-
	(e)	1.875% U.S. Dollar Notes due 2016			504			505
	(f)	4.15% U.S. Dollar Notes due 2019			497			488
	(g)	3.25% U.S. Dollar Notes due 2018			410			411
	(h)	1.75% U.S. Dollar Notes due 2017			396			395
	(i)	3.125% U.S. Dollar Notes due 2022			357			682
	(j)	1.125% U.S. Dollar Notes due 2015			350			350
	(k)	2.05% Canadian Dollar Notes due 2017			259			-
	(l)	Floating-rate U.S. Dollar Notes due 2015			250			250
	(m)	2.75% U.S. Dollar Notes due 2023			210			398
	(n)	2.10% Canadian Dollar Notes due 2014			-			282
		Other			20			28
					6,542			6,619
	Less current maturities				-607			-289
	Balance at year end			$	5,935		$	6,330

Stock_Compensation_Tables

Stock Compensation (Tables)	12 Months Ended
	Jan. 03, 2015
Stock Compensation [Abstract]
Schedule of Compensation Expense for Equity Programs and Related Tax Benefits [Table Text Block]
	(millions)		2014			2013			2012
	Pre-tax compensation expense	$	41		$	38		$	46
	Related income tax benefit	$	15		$	14		$	17
Schedule of cash and tax benefits received upon exercise of stock options and similiar instruments [Table Text Block]	(millions)			2014			2013			2012
	Total cash received from option exercises and similar instruments		$	217		$	475		$	229
	Tax benefits realized upon exercise or vesting of stock-based awards:
	Windfall benefits classified as financing cash flow		$	11		$	24		$	6
Schedule of stock option valuation model assumptions for grants [Table Text Block]
	Stock option valuation model assumptions			2014			2013			2012
	for grants within the year ended:
		Weighted-average expected volatility		15	%		15	%		16	%
		Weighted-average expected term (years)		7.34			7.44			7.53
		Weighted-average risk-free interest rate		2.35	%		1.49	%		1.6	%
		Dividend yield		3	%		2.9	%		3.3	%
	Weighted-average fair value of options granted		$	6.7		$	5.92		$	5.23
Summary of Share-based Compensation [Table Text Block]
						Weighted-
					Weighted-	average			Aggregate
					average	remaining			intrinsic
		Shares			exercise	contractual			value
	Employee and director stock options	(millions)			price	term (yrs.)			(millions)
	Outstanding, beginning of period	20		$	54
	Granted	6			60
	Exercised	-4			50
	Forfeitures and expirations	-1			58
	Outstanding, end of period	21		$	56	7.1		$	195
	Exercisable, end of period	10		$	53	5.7		$	127
	Additionally, option activity for the comparable prior year periods is presented in the following table:
	(millions, except per share data)		2013			2012
	Outstanding, beginning of year		25			24
	Granted		6			6
	Exercised		-10			-4
	Forfeitures and expirations		-1			-1
	Outstanding, end of year		20			25
	Exercisable, end of year		9			14
	Weighted-average exercise price:
	Outstanding, beginning of year	$	50		$	48
	Granted		60			52
	Exercised		48			44
	Forfeitures and expirations		55			53
	Outstanding, end of year	$	54		$	50
	Exercisable, end of year	$	50		$	48
Summary of restricted stock activity [Table Text Block]
					Weighted- average
	Employee restricted stock	Shares			grant-date
	and restricted stock units	(thousands)			fair value
	Non-vested, beginning of year	318		$	52
	Granted	114			56
	Vested	-65			51
	Forfeited	-21			53
	Non-vested, end of year	346		$	54

Pension_Benefits_Tables

Pension Benefits (Tables) (Pension [Member])	12 Months Ended
	Jan. 03, 2015
Pension [Member]
Defined Benefit Plan Disclosure [Line Items]
Components of Company Plan Benefit Expense [Table Text Block]
	(millions)			2014			2013
	Change in projected benefit obligation
	Beginning of year		$	4,888		$	5,135
	Service cost			106			133
	Interest cost			225			203
	Plan participants' contributions			2			2
	Amendments			4			4
	Actuarial (gain)loss			754			-407
	Benefits paid			-281			-218
	Acquisitions			-			17
	Curtailment and special termination benefits			-			26
	Other			3			-
	Foreign currency adjustments			-131			-7
	End of year		$	5,570		$	4,888
	Change in plan assets
	Fair value beginning of year		$	5,014		$	4,374
	Actual return on plan assets			390			802
	Employer contributions			37			34
	Plan participants' contributions			2			2
	Benefits paid			-261			-200
	Other			3			-
	Foreign currency adjustments			-157			2
	Fair value end of year		$	5,028		$	5,014
	Funded status		$	-542		$	126
	Amounts recognized in the Consolidated
	Balance Sheet consist of
	Other assets		$	250		$	419
	Other current liabilities			-15			-16
	Other liabilities			-777			-277
	Net amount recognized		$	-542		$	126
	Amounts recognized in accumulated other
	comprehensive income consist of
	Prior service cost		$	59		$	73
	Net amount recognized		$	59		$	73
Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block]
	(millions)		2014			2013
	Projected benefit obligation	$	3,958		$	327
	Accumulated benefit obligation	$	3,683		$	251
	Fair value of plan assets	$	3,179		$	58
Schedule of Net Benefit Costs [Table Text Block]
	(millions)		2014			2013			2012
	Service cost	$	106		$	133		$	110
	Interest cost		225			203			207
	Expected return on plan assets		-415			-359			-344
	Amortization of unrecognized
	prior service cost		14			16			14
	Recognized net (gain)loss		782			-854			372
	Curtailment and special termination benefits		4			34			-
	Pension (income)expense:
	Defined benefit plans		716			-827			359
	Defined contribution plans		36			35			29
	Total	$	752		$	-792		$	388
Schedule of Assumptions Used [Table Text Block]	Assumptions
	The worldwide weighted-average actuarial assumptions used to determine benefit obligations were:
			2014	2013	2012
	Discount rate		3.90%	4.70%	4.00%
	Long-term rate of compensation increase		4.00%	4.10%	4.10%
	The worldwide weighted-average actuarial assumptions used to determine annual net periodic benefit cost were:
			2014	2013	2012
	Discount rate		4.70%	4.10%	4.80%
	Long-term rate of compensation increase		4.10%	4.10%	4.20%
	Long-term rate of return on plan assets		8.50%	8.50%	8.90%
Schedule of Allocation of Plan Assets [Table Text Block]
				Total			Total			Total
	(millions)			Level 1			Level 2			Level 3			Total
	Cash and cash equivalents		$	47		$	44		$	-		$	91
	Corporate stock, common:
		Domestic		556			-			-			556
		International		161			-			-			161
	Mutual funds:
		International equity		-			393			-			393
	Collective trusts:
		Domestic equity		-			594			-			594
		International equity		-			1,261			-			1,261
		Eurozone sovereign debt		-			11			-			11
		Other international debt		-			534			-			534
	Limited partnerships			-			475			-			475
	Bonds, corporate			-			519			-			519
	Bonds, government			-			172			-			172
	Bonds, other			-			59			-			59
	Real estate			-			-			130			130
	Other			-			64			8			72
	Total		$	764		$	4,126		$	138		$	5,028
	The fair value of Plan assets at December 28, 2013 are summarized as follows:
				Total			Total			Total
	(millions)			Level 1			Level 2			Level 3			Total
	Cash and cash equivalents		$	28		$	83		$	-		$	111
	Corporate stock, common:
		Domestic		576			-			-			576
		International		297			-			-			297
	Mutual funds:
		International equity		-			726			-			726
		International debt		-			54			-			54
	Collective trusts:
		Domestic equity		-			737			-			737
		International equity		-			982			-			982
		Eurozone sovereign debt		-			14			-			14
		Other international debt		-			288			-			288
	Limited partnerships			-			468			-			468
	Bonds, corporate			-			370			1			371
	Bonds, government			-			123			-			123
	Bonds, other			-			52			-			52
	Real estate			-			-			125			125
	Other			-			82			8			90
	Total		$	901		$	3,979		$	134		$	5,014
Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets [Table Text Block]	(millions)		Bonds, corporate			Real estate			Other			Total
	29-Dec-12	$	-		$	115		$	9		$	124
	Purchases		1			1			1			3
	Sales		-			-			-1			-1
	Realized and unrealized gain		-			8			-			8
	Currency translation		-			1			-1			-
	28-Dec-13	$	1		$	125		$	8		$	134
	Sales		-1			-1			-			-2
	Realized and unrealized gain		-			23			-			23
	Currency translation		-			-17			-			-17
	3-Jan-15	$	-		$	130		$	8		$	138

Nonpension_Postretirement_and_1

Nonpension Postretirement and Postemployment Benefits (Tables)	12 Months Ended
	Jan. 03, 2015
Nonpension Postretirement [Member]
Defined Benefit Plan Disclosure [Line Items]
Components of Company plan benefit expense [Table Text Block]	(millions)		2014			2013
	Change in accumulated benefit obligation
	Beginning of year	$	1,202		$	1,323
	Service cost		28			34
	Interest cost		55			50
	Actuarial (gain) loss		116			-145
	Benefits paid		-62			-56
	Curtailments		-28			1
	Amendments		-18			-
	Foreign currency adjustments		-5			-5
	End of year	$	1,288		$	1,202
	Change in plan assets
	Fair value beginning of year	$	1,178		$	1,040
	Actual return on plan assets		81			188
	Employer contributions		16			14
	Benefits paid		-71			-64
	Fair value end of year	$	1,204		$	1,178
	Funded status	$	-84		$	-24
	Amounts recognized in the Consolidated
	Balance Sheet consist of
	Other non-current assets	$	-		$	47
	Other current liabilities		-2			-3
	Other liabilities		-82			-68
	Net amount recognized	$	-84		$	-24
	Amounts recognized in accumulated other
	comprehensive income consist of
	Prior service credit		-16			-1
	Net amount recognized	$	-16		$	-1
Schedule of Net Benefit Costs [Table Text Block]	Expense
	Components of postretirement benefit expense (income) were:
	(millions)		2014			2013			2012
	Service cost	$	28		$	34		$	27
	Interest cost		55			50			53
	Expected return on plan assets		-98			-86			-84
	Amortization of unrecognized prior service credit		-3			-3			-2
	Recognized net (gain) loss		133			-247			66
	Curtailment		-28			1			-
	Postretirement benefit expense:
	Defined benefit plans		87			-251			60
	Defined contribution plans		14			13			13
	Total	$	101		$	-238		$	73
Schedule of Assumptions Used [Table Text Block]	Assumptions
	The weighted-average actuarial assumptions used to determine benefit obligations were:
			2014			2013			2012
	Discount rate		4	%		4.8	%		3.9	%
	The weighted-average actuarial assumptions used to determine annual net periodic benefit cost were:
			2014			2013			2012
	Discount rate		4.8	%		3.9	%		4.6	%
	Long-term rate of return on plan assets		8.5	%		8.5	%		8.9	%
Schedule of Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates [Table Text Block]		One percentage			One percentage
	(millions)	point increase			point decrease
	Effect on total of service and interest cost components	$	15		$	-10
	Effect on postretirement benefit obligation		169			-121
Schedule of Allocation of Plan Assets [Table Text Block]
				Total			Total			Total
	(millions)			Level 1			Level 2			Level 3		Total
	Cash and cash equivalents		$	6		$	27		$	-	$	33
	Corporate stock, common:
		Domestic		214			-			-		214
		International		17			-			-		17
	Mutual funds:
		Domestic equity		-			153			-		153
		International equity		-			120			-		120
		Domestic debt		-			63			-		63
	Collective trusts:
		Domestic equity		-			53			-		53
		International equity		-			164			-		164
	Limited partnerships			-			174			-		174
	Bonds, corporate			-			141			-		141
	Bonds, government			-			54			-		54
	Bonds, other			-			17			-		17
	Other			-			1			-		1
	Total		$	237		$	967		$	-	$	1,204
				Total			Total			Total
	(millions)			Level 1			Level 2			Level 3		Total
	Cash and cash equivalents		$	7		$	39		$	-	$	46
	Corporate stock, common:
		Domestic		231			-			-		231
		International		15			-			-		15
	Mutual funds:
		Domestic equity		-			167			-		167
		International equity		-			124			-		124
		Domestic debt		-			57			-		57
	Collective trusts:
		Domestic equity		-			14			-		14
		International equity		-			169			-		169
	Limited partnerships			-			169			-		169
	Bonds, corporate			-			130			-		130
	Bonds, government			-			39			-		39
	Bonds, other			-			16			-		16
	Other			-			1			-		1
	Total		$	253		$	925		$	-	$	1,178
Postemployment [Member]
Defined Benefit Plan Disclosure [Line Items]
Components of Company plan benefit expense [Table Text Block]	(millions)			2014			2013
	Change in accumulated benefit obligation
	Beginning of year		$	87		$	103
	Service cost			7			7
	Interest cost			4			3
	Actuarial (gain)loss			8			-17
	Benefits paid			-9			-9
	Amendments			8			-
	Foreign currency adjustments			-1			-
	End of year		$	104		$	87
	Funded status		$	-104		$	-87
	Amounts recognized in the Consolidated
	Balance Sheet consist of
	Other current liabilities		$	-8		$	-8
	Other liabilities			-96			-79
	Net amount recognized		$	-104		$	-87
	Amounts recognized in accumulated other
	comprehensive income consist of
	Net prior service cost		$	7		$	-
	Net experience loss			30			25
	Net amount recognized		$	37		$	25
Schedule of Net Benefit Costs [Table Text Block]	Components of postemployment benefit expense were:
	(millions)		2014			2013			2012
	Service cost	$	7		$	7		$	7
	Interest cost		4			3			4
	Recognized net loss		3			5			5
	Postemployment benefit expense	$	14		$	15		$	16
Schedule of Expected Benefit Payments [Table Text Block]	(millions)		Postretirement			Postemployment
	2015	$	69		$	8
	2016		71			8
	2017		72			8
	2018		72			8
	2019		73			8
	2020-2024		390			42

Multiemployer_Pension_and_Post1

Multiemployer Pension and Postretirement Plans (Tables)	12 Months Ended
	Jan. 03, 2015
Multiemployer Plans [Abstract]
Schedule of Multiemployer Plans [Table Text Block]
				PPA Zone Status			FIP/RP Status	Contributions by the Company (millions)
	Pension trust fund		EIN/PN	2014	2013	Pending/ Implemented	2014	2013	2012	Surcharge Imposed	Expiration Date of CBA
	Bakery and Confectionary Union and Industry International Pension Fund (a)		52-6118572 / 001	Red - 12/31/2014	Red - 12/31/2013	Implemented	$5.40	$5.20	$4.80	Yes	10/31/2015 to 4/30/2017
	Central States, Southeast and Southwest Areas Pension Fund (b)		36-6044243 / 001	Red - 12/31/2014	Red - 12/31/2013	Implemented	4.5	4.5	4.3	Yes	1/31/2015 to 10/31/2017
	Western Conference of Teamsters Pension Trust ( c )		91-6145047 / 001	Green - 12/31/2014	Green - 12/31/2013	N/A	1.6	1.5	1.3	No	1/31/2015 to 3/29/2018
	Hagerstown Motor Carriers and Teamsters Pension Fund		52-6045424 / 001	Red - 6/30/2015	Red - 6/30/2014	Implemented	0.5	0.5	0.4	No	10/3/15
	Local 734 Pension Plan		51-6040136 / 001	Red - 4/30/2015	Red - 4/30/2014	Implemented	0.3	0.3	0.3	Yes	4/1/15
	Twin Cities Bakery Drivers Pension Plan		41-6172265 / 001	Green - 12/31/2014	Red - 12/31/2013	N/A	0.2	0.2	0.2	Yes	5/31/15
	Upstate New York Bakery Drivers and Industry Pension Fund		15-0612437 / 001	Green - 6/30/2014	Green - 6/30/2013	N/A	0.2	0.1	0.1	No	9/10/17
	Other Plans						2	2.2	2.1
	Total contributions:						$14.70	$14.50	$13.50
	(a) The Company is party to multiple CBAs requiring contributions to this fund, each with its own expiration date. Over 70 percent of the Company's participants in this fund are covered by a single CBA that expires on 4/30/2017.
	(b) The Company is party to multiple CBAs requiring contributions to this fund, each with its own expiration date. Over 40 percent of the Company's participants in this fund are covered by a single CBA that expires on 7/27/2017.
	(c) The Company is party to multiple CBAs requiring contributions to this fund, each with its own expiration date. Over 40 percent of the Company's participants in this fund are covered by a single CBA that expires on 3/24/2018.
Schedule Of Pension Contributions Exceeding Five Percent Of Total Contributions [Table Text Block]
	The Company was listed in the Forms 5500 of the following plans as of the following plan year ends as providing more than 5 percent of total contributions:
	Pension trust fund	Contributions to the plan exceeded more than 5% of total contributions (as of the Plan's year end)
	Hagerstown Motor Carriers and Teamsters Pension Fund	6/30/2013 and 6/30/2012
	Local 734 Pension Plan	4/30/2014, 4/30/2013 and 4/30/2012
	Twin Cities Bakery Drivers Pension Plan	12/31/2013, 12/31/2012 and 12/31/2011
	Baker's Local 433 Pension Plan	12/31/13
	Upstate New York Bakery Drivers and Industry Pension Fund	6/30/2013 and 6/30/2012

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Jan. 03, 2015
Income Taxes [Abstract]
Schedule of Components of Income before Income Taxes and Provision for Income Taxes [Table Text Block]	(millions)				2014			2013			2012
	Income before income taxes
		United States		$	502		$	2,102		$	1,008
		Foreign			323			504			317
					825			2,606			1,325
	Income taxes
		Currently payable
			Federal		301			302			383
			State		36			68			34
			Foreign		103			105			105
					440			475			522
		Deferred
			Federal		-186			331			-129
			State		-14			-2			8
			Foreign		-54			-12			-38
					-254			317			-159
	Total income taxes			$	186		$	792		$	363
Schedule of Effective Tax Rate Reconciliation [Table Text Block]			2014			2013			2012
	U.S. statutory income tax rate		35	%		35	%		35	%
	Foreign rates varying from 35%		-7.9			-3.5			-4.4
	State income taxes, net of federal benefit		1.7			1.7			2.1
	Cost (benefit) of remitted and unremitted foreign earnings		-0.1			-0.4			-1.8
	Tax audit activity		0.2			-0.1			0
	Net change in valuation allowances		0.3			0.4			0.8
	Statutory rate changes, deferred tax impact		-0.4			-0.5			-0.3
	U.S. deduction for qualified production activities		-2.8			-0.9			-2.1
	Other		-3.4			-1.3			-1.9
	Effective income tax rate		22.6	%		30.4	%		27.4	%
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]			Deferred tax assets						Deferred tax liabilities
	(millions)		2014			2013			2014			2013
	U.S. state income taxes	$	10		$	13		$	49		$	61
	Advertising and promotion-related		21			23			-			-
	Wages and payroll taxes		36			36			-			-
	Inventory valuation		-			37			-			-
	Employee benefits		305			65			-			-
	Operating loss and credit carryforwards		54			55			-			-
	Hedging transactions		48			10			-			-
	Depreciation and asset disposals		-			-			352			366
	Trademarks and other intangibles		-			-			555			529
	Deferred compensation		35			36			-			-
	Stock options		38			36			-			-
	Unremitted foreign earnings		-			-			1			2
	Other		84			109			-			-
			631			420			957			958
	Less valuation allowance		-51			-61			-			-
	Total deferred taxes	$	580		$	359		$	957		$	958
	Net deferred tax asset (liability)	$	-377		$	-599
	Classified in balance sheet as:
	Other current assets	$	184		$	195
	Other current liabilities		-10			-13
	Other assets		175			147
	Other liabilities		-726			-928
	Net deferred tax asset (liability)	$	-377		$	-599
Schedule of Change in Valuation Allowance [Table Text Block]	(millions)			2014			2013			2012
	Balance at beginning of year		$	61		$	59		$	46
	Additions charged to income tax expense			9			17			12
	Reductions credited to income tax expense			-3			-3			-
	Other (a)			-			-10			-
	Currency translation adjustments			-16			-2			1
	Balance at end of year		$	51		$	61		$	59
	(a)	Reduction due to the disposition of a business resulting in deferred tax asset and valuation allowance being eliminated.
Reconciliation of Total Gross Unrecognized Tax Benefits [Table Text Block]	(millions)			2014			2013			2012
	Balance at beginning of year		$	79		$	80		$	66
	Tax positions related to current year:
		Additions		7			9			8
	Tax positions related to prior years:
		Additions		10			17			14
		Reductions		-12			-13			-4
	Settlements			-2			-14			-1
	Lapses in statutes of limitation			-4			-			-3
	Balance at end of year		$	78		$	79		$	80

Derivative_Instruments_and_Fai1

Derivative Instruments and Fair Value Measurements (Tables)	12 Months Ended
	Jan. 03, 2015
Derivative Instruments and Fair Value Measurements [Abstract]
Schedule of Total Notional Amounts of the Company's Derivative Instruments [Table Text Block]
	(millions)		2014			2013
	Foreign currency exchange contracts	$	764		$	517
	Interest rate contracts		2,958			2,400
	Commodity contracts		492			361
	Total	$	4,214		$	3,278
Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis [Table Text Block]	The following table presents assets and liabilities that were measured at fair value in the Consolidated Balance Sheet on a recurring basis as of January 3, 2015 and December 28, 2013:
	Derivatives designated as hedging instruments:
			2014								2013
	(millions)			Level 1			Level 2			Total			Level 1			Level 2			Total
	Assets:
	Foreign currency exchange contracts:
		Other current assets	$	-		$	29		$	29		$	-		$	7		$	7
	Interest rate contracts (a):
		Other assets		-			7			7			-			-			-
	Total assets		$	-		$	36		$	36		$	-		$	7		$	7
	Liabilities:
	Foreign currency exchange contracts:
		Other current liabilities	$	-		$	-6		$	-6		$	-		$	-8		$	-8
	Interest rate contracts:
		Other current liabilities		-			-3			-3			-			-			-
		Other liabilities		-			-16			-16			-			-59			-59
	Commodity contracts:
		Other current liabilities		-			-12			-12			-			-9			-9
		Other liabilities		-			-11			-11			-			-19			-19
	Total liabilities		$	-		$	-48		$	-48		$	-		$	-95		$	-95
	(a)	The fair value of the related hedged portion of the Company's long-term debt, a level 2 liability, was $2.5 billion as of January 3, 2015 and December 28, 2013.
	Derivatives not designated as hedging instruments:
			2014									2013
	(millions)			Level 1			Level 2			Total			Level 1			Level 2			Total
	Assets:
	Commodity contracts:
		Other current assets	$	7		$	-		$	7		$	3		$	-		$	3
	Total assets		$	7		$	-		$	7		$	3		$	-		$	3
	Liabilities:
	Commodity contracts:
		Other current liabilities	$	-36		$	-		$	-36		$	-7		$	-		$	-7
		Other liabilities		-4			-			-4			-			-			-
	Total liabilities		$	-40		$	-		$	-40		$	-7		$	-		$	-7
Offsetting Assets and Liabilities [Table Text Block]	As of January 3, 2015:
							Gross Amounts Not Offset in the Consolidated Balance Sheet
					Amounts Presented in the Consolidated Balance Sheet		Financial Instruments		Cash Collateral Received/ Posted		Net Amount
	Total asset derivatives			$	43	$	-29	$	-	$	14
	Total liability derivatives			$	-88	$	29	$	50	$	-9
	As of December 28, 2013:
							Gross Amounts Not Offset in the Consolidated Balance Sheet
					Amounts Presented in the Consolidated Balance Sheet		Financial Instruments		Cash Collateral Received/ Posted		Net Amount
	Total asset derivatives			$	10	$	-10	$	-	$	0
	Total liability derivatives			$	-102	$	10	$	21	$	-71
Schedule of the Effect of Derivative Instruments on the Consolidated Statement of Income [Table Text Block]	The effect of derivative instruments on the Consolidated Statement of Income for the years ended January 3, 2015 and December 28, 2013 were as follows:
	Derivatives in fair value hedging relationships
																Location of gain		Gain (loss)
																(loss) recognized		recognized in
	(millions)															in income		income (a)
																		2014			2013
	Foreign currency exchange contracts															OIE	$	3		$	2
	Interest rate contracts															Interest expense		17			-5
	Total																$	20		$	-3
	(a)	Includes the ineffective portion and amount excluded from effectiveness testing.
	Derivatives in cash flow hedging relationships
									Location of gain		Gain (loss)					Location of gain
				Gain (loss)					(loss) reclassified		reclassified from					(loss) recognized		Gain (loss)
	(millions)			recognized in AOCI					from AOCI		AOCI into income					in income (a)		recognized in income(a)
				2014			2013				2014			2013				2014			2013
	Foreign currency exchange contracts		$	34		$	13		COGS	$	5		$	10		OIE	$	-4		$	-
	Foreign currency exchange contracts			4			-2		SGA expense		3			2		OIE		-			-
	Interest rate contracts			-69			-		Interest expense		9			4		N/A		-			-
	Commodity contracts			-4			-		COGS		-7			-10		OIE		-			-
	Total		$	-35		$	11			$	10		$	6			$	-4		$	-
	(a)	Includes the ineffective portion and amount excluded from effectiveness testing.
	Derivatives and non-derivatives in net investment hedging relationships
																		Gain (loss)
	(millions)																	recognized in AOCI
																		2014			2013
	Foreign currency denominated long-term debt																$	86		$	-
	Total																$	86		$	-
	Derivatives not designated as hedging instruments
																Location of gain		Gain (loss)
																(loss) recognized		recognized in
	(millions)															in income		income
																		2014			2013
	Foreign currency exchange contracts															OIE	$	1		$	3
	Interest rate contracts															Interest expense		-4			-
	Commodity contracts															COGS		-73			-37
	Commodity contracts															SGA		-5			-
	Total																$	-81		$	-34
Schedule of Assets Measured on a Non-Recurring Basis [Table Text Block]	The following table presents level 3 assets that were measured at fair value on the Consolidated Balance Sheet on a nonrecurring basis as of January 3, 2015:
	(millions)		Fair Value			Total Loss
	Description:
	Long-lived assets	$	3		$	-21
	Total	$	3		$	-21
	The following table presents level 3 assets that were measured at fair value on the Consolidated Balance Sheet on a nonrecurring basis as of December 28, 2013:
	(millions)		Fair Value			Total Loss
	Description:
	Long-lived assets	$	38		$	-70
	Total	$	38		$	-70
Schedule of Fair Value of Long-term Debt [Table Text Block]
	(millions)		Fair Value			Carrying Value
	Current maturities of long-term debt	$	607		$	607
	Long-term debt		6,507			5,935
	Total	$	7,114		$	6,542

Quarterly_Financial_Data_unaud1

Quarterly Financial Data (unaudited) (Tables)	12 Months Ended
	Jan. 03, 2015
Quarterly Financial Data [Abstract]
Schedule of quarterly financial data, net sales and gross profit [Table Text Block]			Net sales						Gross profit
	(millions)		2014			2013			2014			2013
	First	$	3,742		$	3,861		$	1,504		$	1,393
	Second		3,685			3,714			1,411			1,477
	Third		3,639			3,716			1,292			1,450
	Fourth		3,514			3,501			856			1,783
		$	14,580		$	14,792		$	5,063		$	6,103
Schedule of quarterly financial data, net income and earnings per share [Table Text Block]	Net income attributable to Kellogg Company							Per share amounts
	(millions)		2014		2013			2014					2013
								Basic		Diluted			Basic		Diluted
	First	$	406	$	311		$	1.13	$	1.12		$	0.86	$	0.85
	Second		295		352			0.82		0.82			0.96		0.96
	Third		224		326			0.63		0.62			0.9		0.9
	Fourth		-293		818			-0.82		-0.82			2.26		2.24
		$	632	$	1,807
Schedule of quarterly financial data, dividends per share and stock prices [Table Text Block]	Dividends paid per share and the quarterly price ranges on the NYSE during the last two years were:
				Dividend		Stock price
	2014 - Quarter			per share		High		Low
	First		$	0.46	$	62.13	$	56.9
	Second			0.46		69.39		62.62
	Third			0.49		66.41		59.83
	Fourth			0.49		67.24		59.7
			$	1.9
	2013 - Quarter
	First		$	0.44	$	64.75	$	55.02
	Second			0.44		66.84		61.03
	Third			0.46		67.98		58.59
	Fourth			0.46		64.92		58.01
			$	1.8
Schedule Of Quarterly Financial Data, Charges Gain In Operating Profit [Table Text Block]						2014
	(millions)					First			Second			Third			Fourth		Full Year
	Restructuring and cost reduction charges				$	54		$	78		$	92		$	74	$	298
	(Gains) / losses on mark-to-market adjustments					-116			12			66			822		784
					$	-62		$	90		$	158		$	896	$	1,082
	During 2013, the Company recorded the following charges / (gains) in operating profit:
						2013
	(millions)					First			Second			Third			Fourth		Full Year
	Restructuring and cost reduction charges				$	13		$	7		$	29		$	201	$	250
	(Gains) / losses on mark-to-market adjustments					54			7			-2			-1,006		-947
					$	67		$	14		$	27		$	-805	$	-697

Reportable_Segments_Tables

Reportable Segments (Tables)	12 Months Ended
	Jan. 03, 2015
Reportable Segments [Abstract]
Schedule of Selected Operating Segment Information [Table Text Block]
	(millions)				2014			2013			2012
	Net sales
		U.S. Morning Foods		$	3,338		$	3,465		$	3,533
		U.S. Snacks			3,495			3,534			3,400
		U.S. Specialty			1,198			1,202			1,121
		North America Other			1,468			1,515			1,485
		Europe			2,887			2,860			2,527
		Latin America			1,205			1,195			1,121
		Asia Pacific			989			1,021			1,010
		Consolidated		$	14,580		$	14,792		$	14,197
	Operating profit
		U.S. Morning Foods		$	490		$	485		$	588
		U.S. Snacks			395			447			476
		U.S. Specialty			266			265			241
		North America Other			252			275			265
		Europe			240			256			261
		Latin America			169			157			167
		Asia Pacific			45			60			85
		Total Reportable Segments			1,857			1,945			2,083
		Corporate			-833			892			-521
		Consolidated		$	1,024		$	2,837		$	1,562
	Depreciation and amortization (a)
		U.S. Morning Foods		$	136		$	181		$	132
		U.S. Snacks			166			144			123
		U.S. Specialty			10			8			5
		North America Other			32			30			34
		Europe			92			84			66
		Latin America			32			29			26
		Asia Pacific			31			40			55
		Total Reportable Segments			499			516			441
		Corporate			4			16			7
		Consolidated		$	503		$	532		$	448
	(a)	Includes asset impairment charges as discussed in Note 12.
Schedule of Interest Expense and Income Tax Expense by Segment [Table Text Block]
	(millions)				2014			2013			2012
	Interest expense
		North America Other		$	6		$	6		$	4
		Europe			5			6			4
		Latin America			3			1			4
		Asia Pacific			1			3			4
		Corporate			194			219			245
		Consolidated		$	209		$	235		$	261
	Income taxes
		Europe		$	-3		$	4		$	-21
		Latin America			42			35			36
		Asia Pacific			-1			6			9
		Corporate & North America			148			747			339
		Consolidated		$	186		$	792		$	363
Schedule of Total Assets and Additions to Long-Lived Assets by Segment [Table Text Block]
	(millions)				2014			2013			2012
	Total assets
		North America		$	10,489		$	10,643		$	10,602
		Europe			2,893			3,007			3,014
		Latin America			905			1,052			861
		Asia Pacific			1,111			1,049			1,107
		Corporate			1,796			2,583			3,384
		Elimination entries			-2,041			-2,860			-3,799
		Consolidated		$	15,153		$	15,474		$	15,169
	Additions to long-lived assets
		North America		$	295		$	296		$	549
		Europe			129			182			209
		Latin America			31			70			40
		Asia Pacific			120			85			79
		Corporate			7			4			14
		Consolidated		$	582		$	637		$	891
Schedule of Net Sales and Long-Lived Assets by Segment [Table Text Block]	(millions)				2014			2013			2012
	Net sales
		United States		$	8,876		$	9,060		$	8,875
		All other countries			5,704			5,732			5,322
		Consolidated		$	14,580		$	14,792		$	14,197
	Long-lived assets
		United States		$	2,283		$	2,343		$	2,427
		All other countries			1,486			1,513			1,355
		Consolidated		$	3,769		$	3,856		$	3,782
Schedule of Supplemental Product Information by Segment [Table Text Block]	(millions)			2014			2013			2012
		Retail channel cereal	$	6,268		$	6,451		$	6,652
		Retail channel snacks		6,622			6,625			5,891
		Frozen and specialty channels		1,690			1,716			1,654
	Consolidated		$	14,580		$	14,792		$	14,197

Supplemental_Financial_Stateme1

Supplemental Financial Statement Data (Tables)	12 Months Ended
	Jan. 03, 2015
Supplemental Financial Statement Data [Abstract]
Supplemental financial data, consolidated statement of income [Table Text Block]
	Consolidated Statement of Income
	(millions)			2014		2013		2012
	Research and development expense		$	199	$	199	$	206
	Advertising expense		$	1,094	$	1,131	$	1,120
Supplemental financial data, consolidated balance sheet [Table Text Block]
	Consolidated Balance Sheet			2014		2013
	(millions)
	Trade receivables		$	1,101	$	1,231
	Allowance for doubtful accounts			-7		-5
	Refundable income taxes			16		52
	Other receivables			166		146
		Accounts receivable, net	$	1,276	$	1,424
	Raw materials and supplies		$	327	$	319
	Finished goods and materials in process			952		929
		Inventories	$	1,279	$	1,248
	Deferred income taxes		$	184	$	195
	Other prepaid assets			158		127
		Other current assets	$	342	$	322
	Land		$	105	$	125
	Buildings			2,154		2,155
	Machinery and equipment			6,017		6,059
	Capitalized software			327		325
	Construction in progress			692		693
	Accumulated depreciation			-5,526		-5,501
		Property, net	$	3,769	$	3,856
	Other intangibles		$	2,338	$	2,401
	Accumulated amortization			-43		-34
		Other intangibles, net	$	2,295	$	2,367
	Pension		$	250	$	419
	Other			528		514
		Other assets	$	778	$	933
	Accrued income taxes		$	39	$	69
	Accrued salaries and wages			320		327
	Accrued advertising and promotion			446		476
	Other			596		503
		Other current liabilities	$	1,401	$	1,375
	Nonpension postretirement benefits		$	82	$	68
	Other			418		429
		Other liabilities	$	500	$	497
Supplemental financial data, allowance for doubtful accounts [Table Text Block]
	Allowance for doubtful accounts			2014		2013		2012
	(millions)
	Balance at beginning of year		$	5	$	6	$	8
	Additions charged to expense			6		2		1
	Doubtful accounts charged to reserve			-4		-3		-3
	Balance at end of year		$	7	$	5	$	6

Accounting_Policies_Narrative_

Accounting Policies (Narrative) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015
Foreign currency contracts and options mature, within months	18 months
Long-term supplier contracts, exchange-traded futures and option contracts mature, within months	18 months
Likelihood of being ultimately realized upon settlement	50.00%
Payables Placed On Tracking System	$236
Accounts Payable Financing	$184
Minimum [Member]
Expected rates of return	25th percentile
Maximum [Member]
Expected rates of return	75th percentile
Machinery and Equipment [Member] | Minimum [Member]
Useful life	5 years
Machinery and Equipment [Member] | Maximum [Member]
Useful life	30 years
Office Equipment [Member] | Minimum [Member]
Useful life	4 years
Office Equipment [Member] | Maximum [Member]
Useful life	5 years
Building [Member]
Useful life	50 years
Computer Equipment and Capitalized Software [Member] | Minimum [Member]
Useful life	3 years
Computer Equipment and Capitalized Software [Member] | Maximum [Member]
Useful life	7 years
Building Components | Minimum [Member]
Useful life	15 years
Building Components | Maximum [Member]
Useful life	25 years

Acquisitions_Goodwill_and_Othe

Acquisitions, Goodwill and Other Intangible Assets (Narrative) (Details) (USD $)	0 Months Ended	12 Months Ended
In Millions, unless otherwise specified	31-May-12	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Business Acquisition [Line Items]
Cost Of Acquired Entity Purchase Price	$2,695
Purchase price net of cash and cash equivalents, including purchase price adjustments	2,668
Pringles [Member]
Business Acquisition [Line Items]
Purchase price net of cash and cash equivalents, subject to purchase price adjustments	2,683
Purchase price adjustment			15
Purchase price net of cash and cash equivalents, including purchase price adjustments			2,668
Goodwill expected to be deductible for statutory tax purposes		645
Goodwill, Acquired During Period		0	13
Pringles [Member] | Europe [Member]
Business Acquisition [Line Items]
Goodwill, Acquired During Period		0	10
Pringles [Member] | Asia Pacific [Member]
Business Acquisition [Line Items]
Goodwill, Acquired During Period		0	3
Pringles [Member] | Cost of Goods Sold [Member]
Business Acquisition [Line Items]
Transaction fees and integration-related costs		22	15	3
Pringles [Member] | Selling, General and Administrative Expense [Member]
Business Acquisition [Line Items]
Transaction fees and integration-related costs		20	46	73
Pringles [Member] | Other Income (Expense), Net [Member]
Business Acquisition [Line Items]
Transaction fees and integration-related costs				5
Pringles [Member] | Net Sales [Member]
Business Acquisition [Line Items]
Transaction fees and integration-related costs		$1	$5

Acquisitions_Goodwill_and_Othe1

Acquisitions, Goodwill and Other Intangible Assets (Final Acquired Assets and Assumed Liabilities) (Details) (USD $)	31-May-12
In Millions, unless otherwise specified
Business Acquisition Final Purchase Price Allocation [Abstract]
Accounts receivable, net	$128
Inventories	103
Other prepaid assets	18
Property	317
Goodwill	1,319
Other intangibles [Abstract]
Definite-lived intangible assets	79
Brand	776
Other Assets [Abstract]
Deferred income taxes	23
Other	16
Notes payable	-3
Accounts payable	-9
Other current liabilities	-24
Other liabilities	-75
Total	$2,668

Acquisitions_Goodwill_and_Othe2

Acquisitions, Goodwill and Other Intangible Assets (Intangible Assets Subject to Amortization) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015		Dec. 28, 2013
Finite Lived Intangible Assets [Roll Forward]
Gross carrying amount, beginning balance	$136		$135
Currency translation adjustment	-4		1
Gross carrying amount, ending balance	132		136
Accumulated amortization, beginning balance	34		25
Amortization expense	9	[1]	9
Accumulated amortization, ending balance	43		34
Intangible assets subject to amortization net, beginning balance	102		110
Amortization expense	-9	[1]	-9
Currency translation adjustment, Net	-4		1
Intangible assets subject to amortization net, ending balance	89		102
FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract
Estimated aggregate annual amortization expense for next twelve months	9
Estimated aggregate annual amortization expense for year two	9
Estimated aggregate annual amortization expense for year three	9
Estimated aggregate annual amortization expense for year four	9
Estimated aggregate annual amortization expense for year five	9
U.S. Morning Foods [Member]
Finite Lived Intangible Assets [Roll Forward]
Gross carrying amount, beginning balance	8	[2]	8
Currency translation adjustment	0		0
Gross carrying amount, ending balance	8		8	[2]
Accumulated amortization, beginning balance	8		8
Amortization expense	0	[1]	0
Accumulated amortization, ending balance	8		8
Intangible assets subject to amortization net, beginning balance	0	[2]	0
Amortization expense	0	[1]	0
Currency translation adjustment, Net	0		0
Intangible assets subject to amortization net, ending balance	0		0	[2]
U.S. Snacks [Member]
Finite Lived Intangible Assets [Roll Forward]
Gross carrying amount, beginning balance	65	[2]	65
Currency translation adjustment	0		0
Gross carrying amount, ending balance	65		65	[2]
Accumulated amortization, beginning balance	11		7
Amortization expense	5	[1]	4
Accumulated amortization, ending balance	16		11
Intangible assets subject to amortization net, beginning balance	54	[2]	58
Amortization expense	-5	[1]	-4
Currency translation adjustment, Net	0		0
Intangible assets subject to amortization net, ending balance	49		54	[2]
U.S. Specialty [Member]
Finite Lived Intangible Assets [Roll Forward]
Gross carrying amount, beginning balance	0		0
Currency translation adjustment	0		0
Gross carrying amount, ending balance	0		0
Accumulated amortization, beginning balance	0		0
Amortization expense	0	[1]	0
Accumulated amortization, ending balance	0		0
Intangible assets subject to amortization net, beginning balance	0		0
Amortization expense	0	[1]	0
Currency translation adjustment, Net	0		0
Intangible assets subject to amortization net, ending balance	0		0
North America Other [Member]
Finite Lived Intangible Assets [Roll Forward]
Gross carrying amount, beginning balance	5		5
Currency translation adjustment	0		0
Gross carrying amount, ending balance	5		5
Accumulated amortization, beginning balance	4		3
Amortization expense	0	[1]	1
Accumulated amortization, ending balance	4		4
Intangible assets subject to amortization net, beginning balance	1		2
Amortization expense	0	[1]	-1
Currency translation adjustment, Net	0		0
Intangible assets subject to amortization net, ending balance	1		1
Europe [Member]
Finite Lived Intangible Assets [Roll Forward]
Gross carrying amount, beginning balance	42	[2]	41
Currency translation adjustment	-4		1
Gross carrying amount, ending balance	38		42	[2]
Accumulated amortization, beginning balance	4		1
Amortization expense	3	[1]	3
Accumulated amortization, ending balance	7		4
Intangible assets subject to amortization net, beginning balance	38	[2]	40
Amortization expense	-3	[1]	-3
Currency translation adjustment, Net	-4		1
Intangible assets subject to amortization net, ending balance	31		38	[2]
Latin America [Member]
Finite Lived Intangible Assets [Roll Forward]
Gross carrying amount, beginning balance	6	[2]	6
Currency translation adjustment	0		0
Gross carrying amount, ending balance	6		6	[2]
Accumulated amortization, beginning balance	6		6
Amortization expense	0	[1]	0
Accumulated amortization, ending balance	6		6
Intangible assets subject to amortization net, beginning balance	0	[2]	0
Amortization expense	0	[1]	0
Currency translation adjustment, Net	0		0
Intangible assets subject to amortization net, ending balance	0		0	[2]
Asia Pacific [Member]
Finite Lived Intangible Assets [Roll Forward]
Gross carrying amount, beginning balance	10		10
Currency translation adjustment	0		0
Gross carrying amount, ending balance	10		10
Accumulated amortization, beginning balance	1		0
Amortization expense	1	[1]	1
Accumulated amortization, ending balance	2		1
Intangible assets subject to amortization net, beginning balance	9		10
Amortization expense	-1	[1]	-1
Currency translation adjustment, Net	0		0
Intangible assets subject to amortization net, ending balance	$8		$9
[1]	(a) The currently estimated aggregate amortization expense for each of the next five succeeding fiscal periods is approximately $9 million per year.
[2]	* Certain fully amortized intangible assets which were no longer utilized by the Company have been written off and revised in prior period presentation. The impact to the reporting segments are as follows (millions): U.S. Morning Foods - $20; U.S. Snacks - $5; Europe - $2; Latin America - $1.

Acquisitions_Goodwill_and_Othe3

Acquisitions, Goodwill and Other Intangible Assets (Carrying Amount of Goodwill) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013
Changes in the carrying amount of goodwill
Beginning Balance	$5,051	$5,038
Currency translation adjustment	-80	-12
Ending Balance	4,971	5,051
Pringles [Member]
Changes in the carrying amount of goodwill
Goodwill	0	13
Other [Member]
Changes in the carrying amount of goodwill
Goodwill	0	12
U.S. Morning Foods [Member]
Changes in the carrying amount of goodwill
Beginning Balance	133	133
Currency translation adjustment	0	0
Ending Balance	133	133
U.S. Morning Foods [Member] | Pringles [Member]
Changes in the carrying amount of goodwill
Goodwill	0	0
U.S. Morning Foods [Member] | Other [Member]
Changes in the carrying amount of goodwill
Goodwill	0	0
U.S. Snacks [Member]
Changes in the carrying amount of goodwill
Beginning Balance	3,779	3,767
Currency translation adjustment	0	0
Ending Balance	3,779	3,779
U.S. Snacks [Member] | Pringles [Member]
Changes in the carrying amount of goodwill
Goodwill	0	0
U.S. Snacks [Member] | Other [Member]
Changes in the carrying amount of goodwill
Goodwill	0	12
U.S. Specialty [Member]
Changes in the carrying amount of goodwill
Beginning Balance	82	82
Currency translation adjustment	0	0
Ending Balance	82	82
U.S. Specialty [Member] | Pringles [Member]
Changes in the carrying amount of goodwill
Goodwill	0	0
U.S. Specialty [Member] | Other [Member]
Changes in the carrying amount of goodwill
Goodwill	0	0
North America Other [Member]
Changes in the carrying amount of goodwill
Beginning Balance	278	280
Currency translation adjustment	-5	-2
Ending Balance	273	278
North America Other [Member] | Pringles [Member]
Changes in the carrying amount of goodwill
Goodwill	0	0
North America Other [Member] | Other [Member]
Changes in the carrying amount of goodwill
Goodwill	0	0
Europe [Member]
Changes in the carrying amount of goodwill
Beginning Balance	452	438
Currency translation adjustment	-63	4
Ending Balance	389	452
Europe [Member] | Pringles [Member]
Changes in the carrying amount of goodwill
Goodwill	0	10
Europe [Member] | Other [Member]
Changes in the carrying amount of goodwill
Goodwill	0	0
Latin America [Member]
Changes in the carrying amount of goodwill
Beginning Balance	89	92
Currency translation adjustment	-6	-3
Ending Balance	83	89
Latin America [Member] | Pringles [Member]
Changes in the carrying amount of goodwill
Goodwill	0	0
Latin America [Member] | Other [Member]
Changes in the carrying amount of goodwill
Goodwill	0	0
Asia Pacific [Member]
Changes in the carrying amount of goodwill
Beginning Balance	238	246
Currency translation adjustment	-6	-11
Ending Balance	232	238
Asia Pacific [Member] | Pringles [Member]
Changes in the carrying amount of goodwill
Goodwill	0	3
Asia Pacific [Member] | Other [Member]
Changes in the carrying amount of goodwill
Goodwill	$0	$0

Acquisitions_Goodwill_and_Othe4

Acquisitions, Goodwill and Other Intangible Assets (Intangible Assets not Subject to Amortization) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013
Indefinite-lived Intangible Assets by Major Class [Line Items]
Beginning balance	$2,265	$2,249
Currency translation adjustment	-59	16
Ending balance	2,206	2,265
U.S. Morning Foods [Member]
Indefinite-lived Intangible Assets by Major Class [Line Items]
Beginning balance	63	63
Currency translation adjustment	0	0
Ending balance	63	63
U.S. Snacks [Member]
Indefinite-lived Intangible Assets by Major Class [Line Items]
Beginning balance	1,625	1,625
Currency translation adjustment	0	0
Ending balance	1,625	1,625
U.S. Specialty [Member]
Indefinite-lived Intangible Assets by Major Class [Line Items]
Beginning balance	0	0
Currency translation adjustment	0	0
Ending balance	0	0
North America Other [Member]
Indefinite-lived Intangible Assets by Major Class [Line Items]
Beginning balance	95	95
Currency translation adjustment	0	0
Ending balance	95	95
Europe [Member]
Indefinite-lived Intangible Assets by Major Class [Line Items]
Beginning balance	482	466
Currency translation adjustment	-59	16
Ending balance	423	482
Latin America [Member]
Indefinite-lived Intangible Assets by Major Class [Line Items]
Beginning balance	0	0
Currency translation adjustment	0	0
Ending balance	0	0
Asia Pacific [Member]
Indefinite-lived Intangible Assets by Major Class [Line Items]
Beginning balance	0	0
Currency translation adjustment	0	0
Ending balance	$0	$0

Exit_or_Disposal_Activities_Pr

Exit or Disposal Activities (Project K Costs) (Details) (Project K [Member], USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	$506
COGS [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	326
SGA [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	178
Net Sales [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	2
Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Estimated cash costs for program	1,100
Restructuring and related costs, expected cost	1,400
Minimum [Member]
Restructuring Cost and Reserve [Line Items]
Estimated cash costs for program	900
Restructuring and related costs, expected cost	1,200
U.S. Morning Foods [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost expected cost allocation	18.00%
U.S. Snacks [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost expected cost allocation	12.00%
U.S. Specialty [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost expected cost allocation	1.00%
North America Other [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost expected cost allocation	5.00%
Europe [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost expected cost allocation	13.00%
Latin America [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost expected cost allocation	3.00%
Asia Pacific [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost expected cost allocation	6.00%
Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost expected cost allocation	42.00%
Employee Severance | Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs, expected cost	475
Employee Severance | Minimum [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs, expected cost	425
Asset Related Cost [Member] | Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs, expected cost	500
Asset Related Cost [Member] | Minimum [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs, expected cost	450
Other Restructuring [Member] | Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs, expected cost	425
Other Restructuring [Member] | Minimum [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs, expected cost	$325

Exit_or_Disposal_Activities_Al

Exit or Disposal Activities (All Projects) (Details) (Total Costs [Member], USD $)	12 Months Ended			31 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012	Jan. 03, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs, incurred cost	$298	$250	$56
Restructuring and related costs, costs incurred to date				506
COGS [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs, incurred cost	152	195	43
SGA [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs, incurred cost	144	55	13
Net Sales [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs, incurred cost	2
U.S. Morning Foods [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs, incurred cost	60	109	16
Restructuring and related costs, costs incurred to date				160
U.S. Snacks [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs, incurred cost	57	30	10
Restructuring and related costs, costs incurred to date				76
U.S. Specialty [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs, incurred cost	3	5	1
Restructuring and related costs, costs incurred to date				6
North America Other [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs, incurred cost	18	11	6
Restructuring and related costs, costs incurred to date				27
Europe [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs, incurred cost	80	27	3
Restructuring and related costs, costs incurred to date				99
Latin America [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs, incurred cost	8	5	2
Restructuring and related costs, costs incurred to date				12
Asia Pacific [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs, incurred cost	37	32	18
Restructuring and related costs, costs incurred to date				61
Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs, incurred cost	35	31	0
Restructuring and related costs, costs incurred to date				65
Employee Related Cost [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs, incurred cost	90	114	0
Restructuring and related costs, costs incurred to date				197
Asset Related Cost [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs, incurred cost	37	10	4
Restructuring and related costs, costs incurred to date				43
Asset Impairment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs, incurred cost	21	70	17
Restructuring and related costs, costs incurred to date				87
Other Cost [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs, incurred cost	150	56	35
Restructuring and related costs, costs incurred to date				$179

Exit_or_Disposal_Activities_Ex

Exit or Disposal Activities (Exit Cost Reserve Rollforward) (Details) (Exit Costs [Member], USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015
Restructuring Cost and Reserve [Line Items]
Beginning of period	$78
Restructuring Charges	298
Cash Payments	-256
Non-cash Charges and Other	-10	[1]
End of period	110
Restructuring Reserve	110
Employee Severance
Restructuring Cost and Reserve [Line Items]
Beginning of period	66
Restructuring Charges	90
Cash Payments	-84
Non-cash Charges and Other	24	[1]
End of period	96
Restructuring Reserve	96
Asset Related Cost [Member]
Restructuring Cost and Reserve [Line Items]
Beginning of period	0
Restructuring Charges	37
Cash Payments	-24
Non-cash Charges and Other	-13	[1]
End of period	0
Restructuring Reserve	0
Asset Impairment Charge [Member]
Restructuring Cost and Reserve [Line Items]
Beginning of period	0
Restructuring Charges	21
Cash Payments	0
Non-cash Charges and Other	-21	[1]
End of period	0
Restructuring Reserve	0
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Beginning of period	12
Restructuring Charges	150
Cash Payments	-148
Non-cash Charges and Other	0	[1]
End of period	14
Restructuring Reserve	$14
[1]	(a) Employee related non-cash charges consist of pension curtailment benefit.

Equity_Narrative_Details

Equity (Narrative) (Details) (USD $)	12 Months Ended			3 Months Ended		1 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012	Sep. 28, 2013	Jun. 29, 2013	Feb. 22, 2014
Equity [Abstract]
Anti-dilutive potential common shares excluded from reconciliation	5	5	9.9
Shares issued to employees and directors under various benefit plans and stock purchase programs	4	10	5
Common stock repurchases paid	$690	$544	$63
Direct stock purchase and dividend reinvestment plan shares issued	less than one million
Equity Class of Treasury Stock [Line Items]
Common stock repurchases shares	11	9	1
Common stock repurchases value	690	544	63
December 2012 Share Repurchase Program [Member]
Equity Class of Treasury Stock [Line Items]
Share repurchase program, autorized amount		300
April 2013 Share Repurchase Program [Member]
Equity Class of Treasury Stock [Line Items]
Share repurchase program, autorized amount	1,000
May 2013 Share Repurchase Progrm [Member]
Equity Class of Treasury Stock [Line Items]
Accelerated Share Repurchase Payment		355
Common stock repurchases shares				0.6	4.9
February 2014 Share Repurchase Program [Member]
Equity Class of Treasury Stock [Line Items]
Share repurchase program, autorized amount						$1,500

Equity_Earnings_per_Share_Deta

Equity (Earnings per Share) (Details) (USD $)	3 Months Ended								12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Jan. 03, 2015	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Equity [Abstract]
Net income, basic	($293)	$224	$295	$406	$818	$326	$352	$311	$632	$1,807	$961
Average shares outstanding, basic									358	363	358
Net earnings per share, basic	($0.82)	$0.63	$0.82	$1.13	$2.26	$0.90	$0.96	$0.86	$1.76	$4.98	$2.68
Average shares outstanding, dilutive potential common shares									2	2	2
Net earnings per share, dilutive potential common shares									($0.01)	($0.04)	($0.01)
Net income, diluted									$632	$1,807	$961
Average shares outstanding, diluted									360	365	360
Net earnings per share, diluted	($0.82)	$0.62	$0.82	$1.12	$2.24	$0.90	$0.96	$0.85	$1.75	$4.94	$2.67

Equity_Accumulated_Other_Compr

Equity (Accumulated Other Comprehensive Income Reclass) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Derivative Instruments, Gain (Loss) [LineItems]
Reclassification to net earnings, before-tax	($10)	($6)	$14
Tax (expense) benefit	2	0	-5
Net of Tax	-8	-6	9
Postretirement and Postemployment Benefits Reclassification to Net Income Pre Tax [Abstract]
Net experience loss, before-tax	3	5	5
Prior service cost, before-tax	10	13	12
Total before tax	13	18
Postretirement and Postemployment Benefits Reclassification to Net Income After Tax [Abstract]
Tax (expense) benefit	-4	-6
Net of tax	9	12
Total reclassifications for the quarter, net of tax	1	6
Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [LineItems]
Reclassification to net earnings, before-tax	-10	-6
Tax (expense) benefit	2
Net of Tax	-8	-6
Cash Flow Hedging [Member] | Foreign Currency Exchange Contracts [Member] | Cost Of Sales [Member]
Derivative Instruments, Gain (Loss) [LineItems]
Reclassification to net earnings, before-tax	-5	-10
Cash Flow Hedging [Member] | Foreign Currency Exchange Contracts [Member] | Selling General And Administrative Expenses [Member]
Derivative Instruments, Gain (Loss) [LineItems]
Reclassification to net earnings, before-tax	-3	-2
Cash Flow Hedging [Member] | Interest Rate Contracts [Member] | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [LineItems]
Reclassification to net earnings, before-tax	-9	-4
Cash Flow Hedging [Member] | Commodity Contracts [Member] | Cost Of Sales [Member]
Derivative Instruments, Gain (Loss) [LineItems]
Reclassification to net earnings, before-tax	$7	$10

Equity_Accumulated_Other_Compr1

Equity (Accumulated Other Comprehensive Income (Loss)) (Details) (USD $)	Jan. 03, 2015	Dec. 28, 2013
In Millions, unless otherwise specified
Accumulated Other Comprehensive Income Loss [LineItems]
Foreign currency translation adjustments	($1,119)	($856)
Cash flow hedges - unrealized net loss	-24	1
Total accumulated other comprehensive income (loss)	-1,213	-936
Net Experience Loss [Member]
Accumulated Other Comprehensive Income Loss [LineItems]
Postretirement and postemployment benefits	-18	-15
Prior Service Cost [Member]
Accumulated Other Comprehensive Income Loss [LineItems]
Postretirement and postemployment benefits	($52)	($66)

Equity_Variable_Interest_Entit

Equity (Variable Interest Entity) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 28, 2013	Jan. 03, 2015	Dec. 29, 2012
Variable Interest Entity [Line Items]
Assets, Current	$3,267	$3,340
Property, net	3,856	3,769	3,782
Goodwill	5,051	4,971	5,038
Liabilities, Current	3,835	4,364
Long-term Debt	6,619	6,542
Deferred income taxes liab	928	726
Noncontrolling interests	62	62
Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Convertible loan			44
Percentage Of Loan Convertible To Equity			85.00%
Assets, Current			14
Property, net	35	32	36
Intangibles And Other Non Current Assets			26
Goodwill			76
Liabilities, Current			2
Long-term Debt	30	19	39
Deferred income taxes liab			8
Noncontrolling interests			59
Goodwill Purchase Accounting Adjustments	$12

Leases_and_Other_Commitments_D

Leases and Other Commitments (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Leases [Abstract]
Rent expense on all operating leases	$183	$174	$174
Capital lease agreements	1	1	4
Operating leases, 2015	176
Operating leases, 2016	157
Operating leases, 2017	119
Operating leases, 2018	90
Operating leases, 2019	64
Operating leases, 2020 and beyond	115
Operating leases, total minimum payments	721
Capital leases, 2015	1
Capital leases, 2016	1
Capital leases, 2017	1
Capital leases, 2018	1
Capital leases, 2019	1
Capital leases, 2020 and beyond	1
Capital leases, total minimum payments	6
Amount representing interest	-1
Obligations under capital leases	5
Obligations due within one year	-1
Long-term obligations under capital leases	$4

Debt_Narrative_Details

Debt (Narrative) (Details)

12 Months Ended

In Millions, unless otherwise specified

Jan. 03, 2015

Dec. 28, 2013

Dec. 29, 2012

Nov. 30, 2009

31-May-11

Jan. 03, 2015

Dec. 28, 2013

Feb. 24, 2007

Feb. 28, 2013

Jan. 03, 2015

Jan. 03, 2015

Jan. 03, 2015

Jan. 03, 2015

USD ($)

USD ($)

USD ($)

6.6% U.S. Dollar Notes Due 2011 [Member]

3.25% U.S. Dollar Notes Due 2018 [Member]

Euro Commercial Paper [Member]

Euro Commercial Paper [Member]

Euro Commercial Paper [Member]

4.25% U.S. Dollar Notes Due 2013 [Member]

Unsecured Five-Year Credit Agreement [Member]

Unsecured Five-Year Credit Agreement [Member]

Unsecured Five-Year Credit Agreement [Member]

Unsecured Five-Year Credit Agreement [Member]

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

Letter of Credit [Member]

U.S. Swingline Loans [Member]

European Swingline Loans [Member]

USD ($)

USD ($)

EUR (€)

Debt Instrument [Line Items]

Repayment of long-term debt

$960

$762

$750

Debt instrument, face amount

400

750

Debt instrument, stated interest rate

6.60%

3.25%

4.25%

Line of credit facility, maximum borrowing capacity

2,200

750

2,000

75

200

400

Long-term debt

5,935

6,330

Line of credit facility amount outstanding

96

437

Principal repayments on long-term debt in 2015

607

Principal repayments on long-term debt in 2016

1,256

Principal repayments on long-term debt in 2017

661

Principal repayments on long-term debt in 2018

402

Principal repayments on long-term debt in 2019

501

Principal repayments on long-term debt in 2020 and beyond

3,121

Interest paid

209

234

254

Interest expense, capitalized

$5

$2

$2

Debt_Components_of_Notes_Payab

Debt (Components of Notes Payable) (Details) (USD $)	Jan. 03, 2015	Dec. 28, 2013
In Millions, unless otherwise specified
Debt Instrument [Line Items]
Principal amount	$828	$739
U.S. Commercial Paper [Member]
Debt Instrument [Line Items]
Principal amount	681	249
Effective interest rate	0.36%	0.22%
Bank Borrowings [Member]
Debt Instrument [Line Items]
Principal amount	51	53
Europe Commerical Paper [Member]
Debt Instrument [Line Items]
Principal amount	$96	$437
Effective interest rate	0.09%	0.23%

Debt_Schedule_of_LongTerm_Debt

Debt (Schedule of Long-Term Debt) (Details) (USD $)

Jan. 03, 2015

Dec. 28, 2013

Mar. 31, 2001

Dec. 31, 2010

31-May-09

31-May-12

Nov. 30, 2011

Nov. 30, 2009

31-May-11

Feb. 28, 2013

31-May-14

In Millions, unless otherwise specified

Debt Instrument [Line Items]

Other

$20

$28

Long-term debt including current maturities of long-term debt

6,542

6,619

Current maturities of long-term debt

-607

-289

Long-term debt

5,935

6,330

7.45% U.S. Dollar Debentures Due 2031 [Member]

Debt Instrument [Line Items]

Notes payable

1,090

[1]

1,089

[1]

Debt instrument, stated interest rate

7.45%

4.0% U.S. Dollar Notes Due 2020 [Member]

Debt Instrument [Line Items]

Notes payable

842

[2]

974

[2]

Debt instrument, stated interest rate

4.00%

4.45% U.S. Dollar Notes Due 2016 [Member]

Debt Instrument [Line Items]

Notes payable

760

[3]

767

[3]

Debt instrument, stated interest rate

4.45%

3.125% U.S. Dollar Debentures due 2022 [Member]

Debt Instrument [Line Items]

Notes payable

357

[4]

682

[4]

Debt instrument, stated interest rate

3.13%

1.875% U.S. Dollar Notes Due 2016 [Member]

Debt Instrument [Line Items]

Notes payable

504

[5]

505

[5]

Debt instrument, stated interest rate

1.88%

4.15% U.S. Dollar Notes Due 2019 [Member]

Debt Instrument [Line Items]

Notes payable

497

[6]

488

[6]

Debt instrument, stated interest rate

4.15%

3.25% U.S. Dollar Notes Due 2018 [Member]

Debt Instrument [Line Items]

Notes payable

410

[7]

411

[7]

Debt instrument, stated interest rate

3.25%

2.75% U.S. Dollar Notes Due 2023 [Member]

Debt Instrument [Line Items]

Notes payable

210

[8]

398

[8]

Debt instrument, stated interest rate

2.75%

1.75% U.S. Dollar Notes due 2017 [Member]

Debt Instrument [Line Items]

Notes payable

396

[9]

395

[9]

Debt instrument, stated interest rate

1.75%

1.125% U.S. Dollar Notes Due 2015 [Member]

Debt Instrument [Line Items]

Notes payable

350

[10]

350

[10]

Debt instrument, stated interest rate

1.13%

2.10% Canadian Dollar Notes Due 2014 [Member]

Debt Instrument [Line Items]

Notes payable

0

[11]

282

[11]

Debt instrument, stated interest rate

2.10%

4.25% U.S. Dollar Notes Due 2013 [Member]

Debt Instrument [Line Items]

Debt instrument, stated interest rate

4.25%

Floating-rate U.S. Dollar Notes Due 2015 [Member]

Debt Instrument [Line Items]

Notes payable

250

[12]

250

[12]

6.6% U.S. Dollar Notes Due 2011 [Member]

Debt Instrument [Line Items]

Debt instrument, stated interest rate

6.60%

1.75% Euro Notes Due 2021 [Member]

Debt Instrument [Line Items]

Notes payable

597

[13]

0

Debt instrument, stated interest rate

1.75%

2.05% Canadian Dollar Due 2017

Debt Instrument [Line Items]

Notes payable

$259

[14]

$0

Debt instrument, stated interest rate

2.05%

[1]

In March 2001, the Company issued long-term debt instruments, primarily to finance the acquisition of Keebler Foods Company, of which $1.1 billion of thirty-year 7.45% Debentures remain outstanding. The effective interest rate on the Debentures, reflecting issuance discount and hedge settlement, was 7.54%. The Debentures contain standard events of default and covenants, and can be redeemed in whole or in part by the Company at any time at prices determined under a formula (but not less than 100% of the principal amount plus unpaid interest to the redemption date).

[2]

In December 2010, the Company issued $1.0B billion of ten-year 4.0% fixed rate U.S.B Dollar Notes, using net proceeds from these Notes for incremental pension and postretirement benefit plan contributions and to retire a portion of its commercial paper. The effective interest rate on these Notes, reflecting issuance discount, hedge settlement and interest rate swaps, was 2.11% at January 3, 2015. In March 2014, the Company redeemed $150 million of the Notes. In connection with the debt redemption, the Company incurred $12 million of interest expense offset by $7 million of accelerated gains on interest rate swaps previously recorded in accumulated other comprehensive income, and incurred $1 million expense, recorded in Other Income, Expense (net), related to acceleration of fees on the redeemed debt and fees related to the tender offer. The Company entered into interest rate swaps in March 2013 and September 2014 with notional amounts totaling $400 million and $300 million, respectively, which effectively converted a portion of these Notes from a fixed rate to a floating rate obligation. These derivative instruments were designated as fair value hedges of the debt obligation. The fair value adjustment for the interest rate swaps was $3B million and $20 million, at January 3, 2015 and December 28, 2013, respectively, and was recorded as a decrease in the hedged debt balance.

[3]

In MayB 2009, the Company issued $750B million of seven-year 4.45% fixed rate U.S.B Dollar Notes, using net proceeds from these Notes to retire a portion of its commercial paper. The effective interest rate on these Notes, reflecting issuance discount, hedge settlement and interest rate swaps was 3.41% at January 3, 2015. The Company entered into interest rate swaps in February 2011 and March 2012 with notional amounts totaling $200 million and $550 million, respectively, which effectively converted these Notes from a fixed rate to a floating rate obligation. These derivative instruments were designated as fair value hedges of the debt obligation. In April 2013, the Company terminated all of the interest rate swaps. The unamortized gain of $11 million at January 3, 2015 will be amortized to interest expense over the remaining term of the Notes.

[4]

In May 2012, the Company issued $700 million of ten-year 3.125% U.S. Dollar Notes, using net proceeds from these Notes for general corporate purposes, including financing a portion of the acquisition of Pringles. The effective interest rate on these Notes, reflecting issuance discount and interest rate swaps, was 1.32% at January 3, 2015. In March 2014, the Company redeemed $342 million of the Notes. In connection with the debt redemption, the Company reduced interest expense by $2 million and incurred $2 million expense, recorded in Other Income, Expense (net), related to acceleration of fees on the redeemed debt and fees related to the tender offer. The Company entered into interest rate swaps in May 2013 and September 2014 with notional amounts totaling $200 million and $158 million, respectively, which effectively converted these Notes from a fixed rate to a floating rate obligation. These derivative instruments were designated as fair value hedges of the debt obligation. The fair value adjustment for the interest rate swaps was $1 million, recorded as an increase in the hedged debt balance at January 3, 2015 and $13B million, and was recorded as a decrease in the hedged debt balance at December 28, 2013.

[5]

In November 2011, the Company issued $500B million of five-year 1.875% fixed rate U.S.B Dollar Notes, using net proceeds from these Notes for general corporate purposes including repayment of a portion of its commercial paper. The effective interest rate on these Notes, reflecting issuance discount, hedge settlement and interest rate swaps was 1.58% at January 3, 2015. In March 2012, the Company entered into interest rate swaps which effectively converted these Notes from a fixed rate to a floating rate obligation. These derivative instruments were designated as fair value hedges of the debt obligation. In April 2013, the Company terminated all of the interest rate swaps. In May 2013, the Company entered into interest rate swaps which effectively converted these Notes from a fixed rate to a floating rate obligation. These derivative instruments were designated as fair value hedges of the debt obligation. In August 2014, the Company terminated all of the interest rate swaps. The unamortized gain of $4 million at January 3, 2015 will be amortized to interest expense over the remaining term of the Notes.

[6]

In November 2009, the Company issued $500B million of ten-year 4.15% fixed rate U.S.B Dollar Notes, using net proceeds from these Notes to retire a portion of its 6.6% U.S.B Dollar Notes due 2011. The effective interest rate on these Notes, reflecting issuance discount, hedge settlement and interest rate swaps was 2.71% at January 3, 2015. In March 2012, the Company entered into interest rate swaps which effectively converted these Notes from a fixed rate to a floating rate obligation. These derivative instruments were designated as fair value hedges of the debt obligation. The fair value adjustment for the interest rate swaps was $2B million and $11 million, at January 3, 2015 and December 28, 2013, respectively, and was recorded as a decrease in the hedged debt balance.

[7]

In May 2011, the Company issued $400B million of seven-year 3.25% fixed rate U.S.B Dollar Notes, using net proceeds from these Notes for general corporate purposes including repayment of a portion of its commercial paper. The effective interest rate on these Notes, reflecting issuance discount, hedge settlement and interest rate swaps, was 1.83% at January 3, 2015. In October 2011, the Company entered into interest rate swaps which effectively converted these Notes from a fixed rate to a floating rate obligation. These derivative instruments were designated as fair value hedges of the debt obligation. During February and April 2013, the Company terminated all of the interest rate swaps, and the resulting unamortized gain of $13 million at January 3, 2015 will be amortized to interest expense over the remaining term of the Notes. In May 2013, the Company entered into interest rate swaps which effectively converted these Notes from a fixed rate to a floating rate obligation. These derivative instruments were designated as fair value hedges of the debt obligation. The fair value adjustment for the interest rate swaps was $3B million and $6 million, at January 3, 2015 and December 28, 2013, respectively, and was recorded as a decrease in the hedged debt balance.

[8]

In February 2013, the Company issued $400 million of ten-year 2.75% U.S. Dollar Notes, using net proceeds from these Notes for general corporate purposes, including, together with cash on hand, to repay a portion of the Companybs $750 million 4.25% U.S. Dollar Notes that matured in March 2013. The effective interest rate on these Notes, reflecting issuance discount and hedge settlement, was 2.74%. In March 2014, the Company redeemed $189 million of the Notes. In connection with the debt redemption, the Company reduced interest expense by $10 million, including $1 million of accelerated gains on interest rate swaps previously recorded in accumulated other comprehensive income, and incurred $2 million expense, recorded in Other Income, Expense (net), related to acceleration of fees on the redeemed debt and fees related to the tender offer.

[9]

In May 2012, the Company issued $400 million of five-year 1.75% U.S. Dollar Notes, using net proceeds from these Notes for general corporate purposes, including financing a portion of the acquisition of Pringles. The effective interest rate on these Notes, reflecting issuance discount and interest rate swaps, was 1.32% at January 3, 2015. In March and May 2013, the Company entered into interest rate swaps with notional amounts totaling $400 million, w.hich effectively converted the Notes from a fixed rate to a floating rate obligation. These derivative instruments were designated as fair value hedges of the debt obligation. The fair value adjustment for the interest rate swaps was $3 million and $4B million, at January 3, 2015 and December 28, 2013, respectively, and was recorded as a decrease in the hedged debt balance.

[10]

In May 2012, the Company issued $350 million of three-year 1.125% U.S. Dollar Notes, using net proceeds from these Notes for general corporate purposes, including financing a portion of the acquisition of Pringles. The effective interest rate on these Notes, reflecting issuance discount, was 1.16%.

[11]

In May 2012, the Company issued Cdn. $300 million of two-year 2.10% fixed rate Canadian Dollar Notes, using net proceeds from these Notes for general corporate purposes, which included repayment of intercompany debt. This repayment resulted in cash available to be used for a portion of the acquisition of Pringles. The effective interest rate on these Notes, reflecting issuance discount, was 2.11%. The Company redeemed the Notes in May 2014..

[12]

In February 2013, the Company issued $250 million of floating-rate U.S. Dollar Notes bearing interest at LIBOR plus 0.23% due February 2015. The proceeds from these Notes were used for general corporate purposes, including, together with cash on hand, to repay a portion the Companybs $750 million 4.25% U.S. Dollar Notes that matured in March 2013. The effective interest rate on these Notes was 0.46% at January 3, 2015.

[13]

In May 2014, the Company issued €500 million (approximately $597 million at January 3, 2015, which reflects the discount and translation adjustments) of seven-year 1.75% Euro Notes due 2021, using the proceeds from these Notes for general corporate purposes, which included repayment of a portion of the Companybs commercial paper borrowings. The effective interest rate on the Notes, reflecting issuance discount and hedge settlement, was 2.18%. The Notes were designated as a net investment hedge of the Companybs investment in its Europe subsidiary when issued.

[14]

In May 2014, the Company issued Cdn. $300 million (approximately $259 million USD at January 3, 2015, which reflects the discount and translation adjustments) of three-year 2.05% Canadian Dollar Notes due 2017, using the proceeds from these Notes, together with cash on hand, to repay the Companybs Cdn. $300 million, 2.10% Notes due 2014 at maturity. The effective interest rate on the Notes, reflecting issuance discount and hedge settlement, was 2.10%.

Debt_LongTerm_Debt_Footnote_A_

Debt (Long-Term Debt Footnote A) (Details) (USD $)	1 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2001	Jan. 03, 2015	Dec. 28, 2013
Debt Instrument [Line Items]
Notional amounts of interest rate swaps		$4,214	$3,278
7.45% U.S. Dollar Debentures Due 2031 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	$1,100
Debt Instrument term, in years	30 years
Debt instrument, stated interest rate	7.45%
Effective interest rate	7.54%

Debt_LongTerm_Debt_Footnote_B_

Debt (Long-Term Debt Footnote B) (Details) (USD $)	1 Months Ended		12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2010	Jan. 03, 2015	Dec. 28, 2013	Sep. 30, 2014	Mar. 30, 2013
Debt Instrument [Line Items]
Notional amounts of interest rate swaps			$4,214	$3,278
4.0% U.S. Dollar Notes Due 2020 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount		1,000
Debt Instrument term, in years		10 years
Debt instrument, stated interest rate		4.00%
Debt instrument, effective interest rate			2.11%
Notional amounts of interest rate swaps					300	400
Fair value adjustment for interest rate swaps			3	20
Debt Instrument Amount Redeemed	150
Accelerated gains on interest rate swaps previously recorded in AOCI	7
Debt instrument, convertible, interest expense	12
Debt Instrument Fee Amount	$1

Debt_LongTerm_Debt_Footnote_C_

Debt (Long-Term Debt Footnote C) (Details) (USD $)	1 Months Ended
In Millions, unless otherwise specified	31-May-09	Jan. 03, 2015	Dec. 28, 2013	Mar. 31, 2012	Feb. 28, 2011
Debt Instrument [Line Items]
Notional amounts of interest rate swaps		$4,214	$3,278
4.45% U.S. Dollar Notes Due 2016 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	750
Debt Instrument term, in years	7 years
Debt instrument, stated interest rate	4.45%
Debt instrument, effective interest rate		3.41%
Notional amounts of interest rate swaps				550	200
Unamortized gain on termination of interest rate swaps		$11

Debt_LongTerm_Debt_Footnote_D_

Debt (Long-Term Debt Footnote D) (Details) (1.75% Euro Notes Due 2021 [Member])	1 Months Ended
In Millions, unless otherwise specified	31-May-14	31-May-14
	USD ($)	EUR (€)
Debt Instrument [Line Items]
Debt instrument, face amount	$597	€ 500
Debt Instrument term, in years	7 years	7 years
Debt instrument, stated interest rate	1.75%	1.75%
Effective interest rate	2.18%	2.18%

Debt_LongTerm_Debt_Footnote_E_

Debt (Long-Term Debt Footnote E) (Details) (USD $)	1 Months Ended
In Millions, unless otherwise specified	Nov. 30, 2011	Jan. 03, 2015	Dec. 28, 2013
Debt Instrument [Line Items]
Notional amounts of interest rate swaps		$4,214	$3,278
1.875% U.S. Dollar Notes Due 2016 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	500
Debt Instrument term, in years	5 years
Debt instrument, stated interest rate	1.88%
Effective interest rate		1.58%
Unamortized gain on termination of interest rate swaps		$4

Debt_LongTerm_Debt_Footnote_F_

Debt (Long-Term Debt Footnote F) (Details) (USD $)	1 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Nov. 30, 2009	Jan. 03, 2015	Dec. 28, 2013
4.15% U.S. Dollar Notes Due 2019 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	$500
Debt Instrument term, in years	10 years
Debt instrument, stated interest rate	4.15%
Debt instrument, effective interest rate	2.71%
Fair value adjustment for interest rate swaps		$2	$11
6.6% U.S. Dollar Notes Due 2011 [Member]
Debt Instrument [Line Items]
Debt instrument, stated interest rate	6.60%

Debt_LongTerm_Debt_Footnote_G_

Debt (Long-Term Debt Footnote G) (Details) (USD $)	1 Months Ended	12 Months Ended
In Millions, unless otherwise specified	31-May-11	Jan. 03, 2015	Dec. 28, 2013
Debt Instrument [Line Items]
Notional amounts of interest rate swaps		$4,214	$3,278
3.25% U.S. Dollar Notes Due 2018 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	400
Debt Instrument term, in years	7 years
Debt instrument, stated interest rate	3.25%
Effective interest rate	1.83%
Fair value adjustment for interest rate swaps		3	6
Unamortized gain on termination of interest rate swaps		$13

Debt_LongTerm_Debt_Footnote_H_

Debt (Long-Term Debt Footnote H) (Details) (USD $)	1 Months Ended	12 Months Ended
In Millions, unless otherwise specified	31-May-12	Jan. 03, 2015	Dec. 28, 2013	Mar. 31, 2014	31-May-13
Debt Instrument [Line Items]
Notional amounts of interest rate swaps		$4,214	$3,278
1.75% U.S. Dollar Notes due 2017 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	400
Debt Instrument term, in years	5 years
Debt instrument, stated interest rate	1.75%
Effective interest rate		1.32%
Notional amounts of interest rate swaps				400	400
Fair value adjustment for interest rate swaps		$3	$4

Debt_LongTerm_Debt_Footnote_I_

Debt (Long-Term Debt Footnote I) (Details) (USD $)	1 Months Ended		12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	31-May-12	Jan. 03, 2015	Dec. 28, 2013	Sep. 30, 2014	31-May-13
Debt Instrument [Line Items]
Notional amounts of interest rate swaps			$4,214	$3,278
3.125% U.S. Dollar Debentures due 2022 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount		700
Debt Instrument term, in years		10 years
Debt instrument, stated interest rate		3.13%
Effective interest rate			1.32%
Fair value adjustment for interest rate swaps			1	13
Notional amounts of interest rate swaps					158	200
Debt Instrument Amount Redeemed	342
Debt instrument, convertible, interest expense	-2
Debt Instrument Fee Amount	$2

Debt_LongTerm_Debt_Footnote_J_

Debt (Long-Term Debt Footnote J) (Details) (1.125% U.S. Dollar Notes Due 2015 [Member], USD $)	1 Months Ended
In Millions, unless otherwise specified	31-May-12
1.125% U.S. Dollar Notes Due 2015 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	$350
Debt Instrument term, in years	3 years
Debt instrument, stated interest rate	1.13%
Effective interest rate	1.16%

Debt_LongTerm_Debt_Footnote_K_

Debt (Long-Term Debt Footnote K) (Details)	Jan. 03, 2015	Dec. 28, 2013	31-May-14	Jan. 03, 2015	31-May-12
In Millions, unless otherwise specified	USD ($)	USD ($)	2.05% Canadian Dollar Due 2017	2.05% Canadian Dollar Due 2017	2.05% Canadian Dollar Due 2017
				USD ($)	CAD
Debt Instrument [Line Items]
Debt instrument, face amount				$259	300
Debt Instrument term, in years			3 years
Debt instrument, stated interest rate					2.05%
Debt instrument, effective interest rate					2.10%
Notional amounts of interest rate swaps	$4,214	$3,278

Debt_LongTerm_Debt_Footnote_L_

Debt (Long-Term Debt Footnote L (Details) (USD $)	12 Months Ended			1 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012	Feb. 28, 2013
Debt Instrument [Line Items]
Repayment of long-term debt	$960	$762	$750
Floating-rate U.S. Dollar Notes Due 2015 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount				250
Debt instrument, effective interest rate	0.46%
Three months Libor Plus				LIBOR plus 0.23%
4.25% U.S. Dollar Notes Due 2013 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount				$750
Debt instrument, stated interest rate				4.25%

Debt_LongTerm_Debt_Footnote_M_

Debt (Long-Term Debt Footnote M) (Details) (USD $)	1 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Feb. 28, 2013
2.75% U.S. Dollar Notes Due 2023 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount		$400
Debt Instrument term, in years		10 years
Debt instrument, stated interest rate		2.75%
Effective interest rate		2.74%
Debt Instrument Amount Redeemed	189
Debt Instrument Accelerated Gains	1
Debt instrument, convertible, interest expense	-10
Debt Instrument Fee Amount	2
4.25% U.S. Dollar Notes Due 2013 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount		$750
Debt instrument, stated interest rate		4.25%

Debt_LongTerm_Debt_Footnote_N_

Debt (Long-Term Debt Footnote N) (Details) (2.10% Canadian Dollar Notes Due 2014 [Member], CAD)	1 Months Ended
In Millions, unless otherwise specified	31-May-12
2.10% Canadian Dollar Notes Due 2014 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	300
Debt Instrument term, in years	2 years
Debt instrument, stated interest rate	2.10%
Effective interest rate	2.11%

Stock_Compensation_Equitybased

Stock Compensation (Equity-based compensation programs) (Details) (USD $)	12 Months Ended
	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012	Feb. 28, 2013
2013 Long-Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized	22,000,000
Vesting period, years	3 years
Options granted remaining authorized, but unissued, shares	20,000,000
Contractual term, years	10 years
Shares, Issued				2
Shares, Reduced From Remaining Available				1
Shares, Reduced From Outstanding Award				1
2009 Long-Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period, years	3 years
Contractual term, years	10 years
2009 Non-Employee Director Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized	500,000
Number of shares awarded	23,890	26,504	26,940
2002 Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized	400,000
Maximum number of shares allowed to be issued under plan	2,500,000
Purchase price, percentage of fair market value of stock on last day of quaterly purchase period	95.00%
Maximum value of purchases for any employee in any calendar year	25,000
Number of shares purchased by employees under plan	75,000	85,000	107,000
International Subsidiary Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares purchased by employees under plan	58,000	58,000	71,000
Employer Matching Contribution, Percent	100.00%

Stock_Compensation_Schedule_of

Stock Compensation (Schedule of Compensation Expense for Equity Programs and Related Tax Benefits) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Stock Compensation [Abstract]
Pre-tax compensation expense	$41	$38	$46
Related income tax benefit	15	14	17
Non-vested stock-based compensation awards not yet recognized	$49
Weighted-average period of recognition, years	2 years

Stock_Compensation_Cash_used_t

Stock Compensation (Cash used to settle equity instruments) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Total cash received from option exercises and similiar instruments	$217	$475	$229
Windfall Benefits Classified as Financing Cash Flow [Member]
Total	$11	$24	$6

Stock_Compensation_Fair_Value_

Stock Compensation (Fair Value Assumptions) (Details) (USD $)	12 Months Ended
	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Stock Compensation [Abstract]
Weighted-average expected volatility	15.00%	15.00%	16.00%
Weighted-average expected term (years)	7 years 3 months 18 days	7 years 4 months 24 days	7 years 6 months 11 days
Weighted-average risk-free interest rate	2.35%	1.49%	1.60%
Dividend yield	3.00%	2.90%	3.30%
Weighted-average fair value of options granted	$6.70	$5.92	$5.23

Stock_Compensation_Summary_of_

Stock Compensation (Summary of Share-based Compensation) (Details) (USD $)	12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Stock Compensation [Abstract]
Outstanding, beginning of period - Shares	20	25	24
Granted - Shares	6	6	6
Exercised - shares	-4	-10	-4
Forfeitures and expirations - Shares	-1	-1	-1
Outstanding, end of period - Shares	21	20	25
Exercisable, end of period - Shares	10	9	14
Outstanding, beginning of period - Weighted-average exercise price	$54	$50	$48
Granted - Weighted-average exercise price	$60	$60	$52
Exercised - Weighted-average exercise price	$50	$48	$44
Forfeitures and expirations - Weighted-average exercise price	$58	$55	$53
Outstanding, end of period - Weighted-average exercise price	$56	$54	$50
Exercisable, end of period - Weighted-average exercise price	$53	$50	$48
Outstanding, end of period - Weighted-average remaining contractual term (years)	7 years 1 month 10 days
Exercisable, end of period - Weighted-average remaining contractual term (years)	5 years 8 months 12 days
Outstanding, end of period - Aggregate intrinsic value	$195
Exercisable, end of period - Aggregate intrinsic value	127
Total intrinsic value of options exercised	$56	$139	$34

Stock_Compensation_Maximum_Fut

Stock Compensation (Maximum Future Value of Performance Shares) (Details) (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012	Feb. 22, 2014
Stock Compensation [Abstract]
2014 Award	$29
2013 Award		25
2012 Award			23
Performance share based awards cumulative target period, in years	3 years
Number of shares that correspond with target grants	223,000	194,000	178,000
Grant-date fair value of shares that correspond with target grants	$54	$54	$47
Number of performance shares that could be issued on the vesting date, minimum	0.00%
Number of performance shares that could be issued on the vesting date, maximum	200.00%
2011 Performance share award settlement in terms of original target				60.00%
2011 Performance share award settlement in dollars				$3

Stock_Compensation_Summary_of_1

Stock Compensation (Summary of restricted stock activity) (Details) (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted - Shares	223,000	194,000	178,000
Non-vested, beginning of year - Weighted-average grant-date fair value	$54	$47
Non-vested, end of year - Weighted-average grant-date fair value	$54	$54	$47
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested, beginning of year-Shares	318,000
Granted - Shares	114,000	139,000	160,000
Vested - Shares	-65,000
Forfeited - Shares	-21,000
Non-vested, end of year-Shares	346,000	318,000
Non-vested, beginning of year - Weighted-average grant-date fair value	$52
Granted - Weighted-average grant-date fair value	$56
Vested - Weighted-average grant-date fair value	$51
Forfeited - Weighted-average grant-date fair value	$53
Non-vested, end of year - Weighted-average grant-date fair value	$54	$52
Total fair value of restricted stock and restricted stock units vested during period	$4	$6	$4

Pension_Benefits_Change_in_Pro

Pension Benefits (Change in Projected Benefit Obligation, Plan Assets, and Funding Status) (Details) (USD $)	12 Months Ended
	Jan. 03, 2015	Dec. 28, 2013
Amounts recognized in the Consolidated Balance Sheet consist of
Other assets	$250,000,000	$419,000,000
Other liabilities	-777,000,000	-277,000,000
Amounts recognized in accumulated other comprehensive income consist of
Accumulated benefit obligation for all defined benefit pension plans	5,100,000,000	4,500,000,000
Pension [Member]
Change in projected benefit obligation
Beginning of year	4,888,000,000	5,135,000,000
Service cost	106,000,000	133,000,000
Interest cost	225,000,000	203,000,000
Plan participants' contributions	2,000,000	2,000,000
Amendments	4,000,000	4,000,000
Actuarial gain (loss)	754,000,000	-407,000,000
Benefits paid	-281,000,000	-218,000,000
Acquisitions	0	17,000,000
Curtailment and special termination benefits	0	26,000,000
Foreign currency adjustments	-131,000,000	-7,000,000
Other	3,000,000
End of year	5,570,000,000	4,888,000,000
Change in plan assets
Fair value beginning of year	5,014,000,000	4,374,000,000
Actual return on plan assets	390,000,000	802,000,000
Employer contributions	37,000,000	34,000,000
Plan participants' contributions	2,000,000	2,000,000
Benefits paid, Plan Assets	-261,000,000	-200,000,000
Foreign currency adjustments	-157,000,000	2,000,000
Other	3,000,000
Fair value end of year	5,028,000,000	5,014,000,000
Funded status	-542,000,000	126,000,000
Amounts recognized in the Consolidated Balance Sheet consist of
Other assets	250,000,000	419,000,000
Other current liabilities	-15,000,000	-16,000,000
Other liabilities	-777,000,000	-277,000,000
Net amount recognized	-542,000,000	126,000,000
Amounts recognized in accumulated other comprehensive income consist of
Prior service cost	59,000,000	73,000,000
Net amount recognized	$59,000,000	$73,000,000

Pension_Benefits_Accumulated_B

Pension Benefits (Accumulated Benefit Obligatons) (Details) (Pension [Member], USD $)	Jan. 03, 2015	Dec. 28, 2013
In Millions, unless otherwise specified
Pension [Member]
Projected benefit obligation	$3,958	$327
Accumulated benefit obligation	3,683	251
Fair value of plan assets	$3,179	$58

Pension_Benefits_Components_of

Pension Benefits (Components of Pension Expense) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
401 (k) expense	$43	$41	$39
Pension [Member]
Service cost	106	133
Interest cost	225	203
Pension expense	752	-792	388
Pension [Member] | Defined Benefit Plans [Member]
Service cost	106	133	110
Interest cost	225	203	207
Expected return on plan assets	-415	-359	-344
Amortization of unrecognized prior service cost	14	16	14
Recognized net loss	782	-854	372
Curtailment and special termination benefits - net loss	4	34	0
Pension expense	716	-827	359
Estimated net prior service cost for defined benefit pension plans, expected to be amortized	12
Pension [Member] | Defined Contribution Plans [Member]
Pension expense	$36	$35	$29

Pension_Benefits_Assumptions_D

Pension Benefits (Assumptions) (Details)	12 Months Ended
	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Percentage of consolidated pension and other postretirement benefit plan assets	69.00%
Pension [Member]
Discount rate, benefit obligations	3.90%	4.70%	4.00%
Long-term rate of compensation increase	4.00%	4.10%	4.10%
Discount rate, annual net periodic benefit cost	4.70%	4.10%	4.80%
Long-term rate of compensation increase, annual net periodic benefit cost	4.10%	4.10%	4.20%
Long-term rate of return on plan assets, annual net periodic benefit cost	8.50%	8.50%	8.90%
Long-term inflation assumption	2.50%
Active management premium	1.00%
Expected rate of return on foreign plan assets	8.50%
Expected rates of return	57th percentile

Pension_Benefits_Plan_assets_D

Pension Benefits (Plan assets) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected rates of return	25th percentile
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected rates of return	75th percentile
Pension [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	$5,028	$5,014	$4,374
Percentage of consolidated plan assets represented by investment in Company common stock	1.30%	1.20%
Expected contributions by company	39
Investment horizon (in years) used to determine expected long-term rate of return on plan assets	20 years
Expected rates of return	57th percentile
Increase in benefit obligation	126
Pension [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	764	901
Pension [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	4,126	3,979
Pension [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	138	134	124
Pension [Member] | Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	91	111
Pension [Member] | Cash and Cash Equivalents [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	47	28
Pension [Member] | Cash and Cash Equivalents [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	44	83
Pension [Member] | Cash and Cash Equivalents [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	0	0
Pension [Member] | Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted-average target asset allocation	25.00%
Pension [Member] | Corporate Stock, Common [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted-average target asset allocation	69.00%
Pension [Member] | Limited partnerships [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	475	468
Pension [Member] | Limited partnerships [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	0	0
Pension [Member] | Limited partnerships [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	475	468
Pension [Member] | Limited partnerships [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	0	0
Pension [Member] | Bonds, Corporate [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	519	371
Pension [Member] | Bonds, Corporate [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	0	0
Pension [Member] | Bonds, Corporate [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	519	370
Pension [Member] | Bonds, Corporate [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	0	1	0
Pension [Member] | Bonds, Government [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	172	123
Pension [Member] | Bonds, Government [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	0	0
Pension [Member] | Bonds, Government [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	172	123
Pension [Member] | Bonds, Government [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	0	0
Pension [Member] | Bonds, Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	59	52
Pension [Member] | Bonds, Other [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	0	0
Pension [Member] | Bonds, Other [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	59	52
Pension [Member] | Bonds, Other [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	0	0
Pension [Member] | Real Estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	130	125
Pension [Member] | Real Estate [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	0	0
Pension [Member] | Real Estate [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	0	0
Pension [Member] | Real Estate [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	130	125	115
Pension [Member] | Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	72	90
Weighted-average target asset allocation	6.00%
Pension [Member] | Other [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	0	0
Pension [Member] | Other [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	64	82
Pension [Member] | Other [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	8	8	9
Postretirement [Member]
Defined Benefit Plan Disclosure [Line Items]
Increase in benefit obligation	33
Domestic [Member] | Pension [Member] | Corporate Stock, Common [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	556	576
Domestic [Member] | Pension [Member] | Corporate Stock, Common [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	556	576
Domestic [Member] | Pension [Member] | Corporate Stock, Common [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	0	0
Domestic [Member] | Pension [Member] | Corporate Stock, Common [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	0	0
Domestic [Member] | Pension [Member] | Collective Trusts, Equity Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	594	737
Domestic [Member] | Pension [Member] | Collective Trusts, Equity Investments [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	0	0
Domestic [Member] | Pension [Member] | Collective Trusts, Equity Investments [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	594	737
Domestic [Member] | Pension [Member] | Collective Trusts, Equity Investments [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	0	0
Foreign [Member] | Pension [Member] | Corporate Stock, Common [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	161	297
Foreign [Member] | Pension [Member] | Corporate Stock, Common [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	161	297
Foreign [Member] | Pension [Member] | Corporate Stock, Common [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	0	0
Foreign [Member] | Pension [Member] | Corporate Stock, Common [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	0	0
Foreign [Member] | Pension [Member] | Mutual Funds, Equity Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	393	726
Foreign [Member] | Pension [Member] | Mutual Funds, Equity Investments [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	0	0
Foreign [Member] | Pension [Member] | Mutual Funds, Equity Investments [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	393	726
Foreign [Member] | Pension [Member] | Mutual Funds, Equity Investments [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	0	0
Foreign [Member] | Pension [Member] | Mutual Funds, Debt Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	0	54
Foreign [Member] | Pension [Member] | Mutual Funds, Debt Investments [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	0	0
Foreign [Member] | Pension [Member] | Mutual Funds, Debt Investments [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	0	54
Foreign [Member] | Pension [Member] | Mutual Funds, Debt Investments [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	0	0
Foreign [Member] | Pension [Member] | Collective Trusts, Equity Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	1,261	982
Foreign [Member] | Pension [Member] | Collective Trusts, Equity Investments [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	0	0
Foreign [Member] | Pension [Member] | Collective Trusts, Equity Investments [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	1,261	982
Foreign [Member] | Pension [Member] | Collective Trusts, Equity Investments [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	0	0
Foreign [Member] | Pension [Member] | Collective Trusts, Debt Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	534	288
Foreign [Member] | Pension [Member] | Collective Trusts, Debt Investments [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	0	0
Foreign [Member] | Pension [Member] | Collective Trusts, Debt Investments [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	534	288
Foreign [Member] | Pension [Member] | Collective Trusts, Debt Investments [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	0	0
Eurozone sovereign debt | Pension [Member] | Collective Trusts, Debt Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	11	14
Eurozone sovereign debt | Pension [Member] | Collective Trusts, Debt Investments [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	0	0
Eurozone sovereign debt | Pension [Member] | Collective Trusts, Debt Investments [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	11	14
Eurozone sovereign debt | Pension [Member] | Collective Trusts, Debt Investments [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of Plan assets	$0	$0
US High Quality Bonds [Member] | Pension [Member] | Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate assumptions, bond yield percentile	40th percentile
US High Quality Bonds [Member] | Pension [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate assumptions, bond yield percentile	90th percentile
Canada And Europe [Member] | Pension [Member] | Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate assumptions, bond yield percentile	10th percentile
Canada And Europe [Member] | Pension [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate assumptions, bond yield percentile	90th percentile

Pension_Benefits_Level_3_Gains

Pension Benefits (Level 3 Gains and Losses) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Pension [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value beginning of year			$4,374
Fair value end of year	5,028	5,014	4,374
Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Gain included in net change in Level 3 assets	8	8
Level 3 [Member] | Pension [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value beginning of year	134	124
Purchases	0	3
Sales	-2	-1
Realized and unrealized gain (loss)	23	8
Transfer out		0
Currency translation	-17
Fair value end of year	138	134
Bonds, Corporate [Member] | Pension [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value end of year	519	371
Bonds, Corporate [Member] | Level 3 [Member] | Pension [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value beginning of year	1	0
Purchases	0	1
Sales	-1	0
Realized and unrealized gain (loss)	0	0
Transfer out		0
Currency translation	0
Fair value end of year	0	1
Bonds, Other [Member] | Pension [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value end of year	59	52
Bonds, Other [Member] | Level 3 [Member] | Pension [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value end of year	0	0
Real Estate [Member] | Pension [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value end of year	130	125
Real Estate [Member] | Level 3 [Member] | Pension [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value beginning of year	125	115
Purchases	0	1
Sales	-1	0
Realized and unrealized gain (loss)	23	8
Transfer out		1
Currency translation	-17
Fair value end of year	130	125
Other [Member] | Pension [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value end of year	72	90
Other [Member] | Level 3 [Member] | Pension [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value beginning of year	8	9
Purchases	0	1
Sales	0	-1
Realized and unrealized gain (loss)	0	0
Transfer out		-1
Currency translation	0
Fair value end of year	$8	$8

Pension_Benefits_Benefit_Payme

Pension Benefits (Benefit Payments) (Details) (Pension [Member], USD $)	Jan. 03, 2015
In Millions, unless otherwise specified
Pension [Member]
Benefit payments in 2015	$426
Benefit payments in 2016	267
Benefit payments in 2017	261
Benefit payments in 2018	269
Benefit payments in 2019	279
Benefit payments in 2020 through 2024	$1,627

Nonpension_Postretirement_and_2

Nonpension Postretirement and Postemployment Benefits (Change in Projected Benefit Obligations, Plan Assets, and Funded Status, Postretirement) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013
Amounts recognized in the Consolidated Balance Sheet consist of
Other assets	$250	$419
Other liabilities	-82	-68
Nonpension Postretirement [Member]
Defined Benefit Plan Change In Accumulated Benefit Obligation Rollforward [Abstract]
Beginning of year	1,202	1,323
Service cost	28	34
Interest cost	55	50
Actuarial gain (loss)	116	-145
Benefits paid	-62	-56
Curtailment and special termination benefits	-28	1
Acquisitions	-18	0
Foreign currency adjustments	-5	-5
End of year	1,288	1,202
Defined Benefit Plan, Assets for Plan Benefits [Abstract]
Fair value beginning of year	1,178	1,040
Actual return on plan assets	81	188
Employer contributions	16	14
Benefits paid, Plan Assets	-71	-64
Fair value end of year	1,204	1,178
Funded status	-84	-24
Amounts recognized in the Consolidated Balance Sheet consist of
Other assets	0	47
Other current liabilities	-2	-3
Other liabilities	-82	-68
Net amount recognized	-84	-24
Amounts recognized in accumulated other comprehensive income consist of
Prior service cost	-16	-1
Net amount recognized	($16)	($1)

Nonpension_Postretirement_and_3

Nonpension Postretirement and Postemployment Benefits (Components of Postretirement Expense, Postretirement) (Details) (Nonpension Postretirement [Member], USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Defined Benefit Plan Disclosure [Line Items]
Service cost	$28	$34
Interest cost	55	50
Postretirement benefit expense	101	-238	73
Amortization prior service cost	2
Estimated net prior service cost for defined benefit pension plans, expected to be amortized	2
Defined Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	28	34	27
Interest cost	55	50	53
Expected return on plan assets	-98	-86	-84
Amortization of unrecognized prior service cost	-3	-3	-2
Recognized net loss	133	-247	66
Curtailment and special termination benefits - net loss	-28	1	0
Postretirement benefit expense	87	-251	60
Defined Contribution Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Postretirement benefit expense	$14	$13	$13

Nonpension_Postretirement_and_4

Nonpension Postretirement and Postemployment Benefits (Assumptions) (Details) (Nonpension Postretirement [Member])	12 Months Ended
	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Nonpension Postretirement [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate, benefit obligations	4.00%	4.80%	3.90%
Discount rate, annual net periodic benefit cost	4.80%	3.90%	4.60%
Long-term rate of return on plan assets, annual net periodic benefit cost	8.50%	8.50%	8.90%

Nonpension_Postretirement_and_5

Nonpension Postretirement and Postemployment Benefits (Health Care Cost Trend Rates) (Details) (Nonpension Postretirement [Member], USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015
Nonpension Postretirement [Member]
Defined Benefit Plan Disclosure [Line Items]
Assumed health care cost trend rate	5.00%
Assumed health care cost trend rate by year 2017	4.50%
Effect on total of service and interest cost components, one percentage point increase	$15
Effect on total of service and interest cost components, one percentage point decrease	-10
Effect on postretirement benefit obligation, one percentage point increase	169
Effect on postretirement benefit obligation, one percentage point decrease	($121)

Nonpension_Postretirement_and_6

Nonpension Postretirement and Postemployment Benefits (Plan Assets) (Details) (Nonpension Postretirement [Member], USD $)	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
In Millions, unless otherwise specified
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$1,204	$1,178	$1,040
Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	237	253
Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	967	925
Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	33	46
Cash and Cash Equivalents [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	6	7
Cash and Cash Equivalents [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	27	39
Cash and Cash Equivalents [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Limited partnerships [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	174	169
Limited partnerships [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Limited partnerships [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	174	169
Limited partnerships [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Bonds, Corporate [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	141	130
Bonds, Corporate [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Bonds, Corporate [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	141	130
Bonds, Corporate [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Bonds, Government [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	54	39
Bonds, Government [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Bonds, Government [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	54	39
Bonds, Government [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Bonds, Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	17	16
Bonds, Other [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Bonds, Other [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	17	16
Bonds, Other [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	1	1
Other [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Other [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	1	1
Other [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Domestic Country [Member] | Corporate Stock, Common [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	214	231
Domestic Country [Member] | Corporate Stock, Common [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	214	231
Domestic Country [Member] | Corporate Stock, Common [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Domestic Country [Member] | Corporate Stock, Common [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Domestic Country [Member] | Mutual Funds, Equity Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	153	167
Domestic Country [Member] | Mutual Funds, Equity Investments [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Domestic Country [Member] | Mutual Funds, Equity Investments [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	153	167
Domestic Country [Member] | Mutual Funds, Equity Investments [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Domestic Country [Member] | Mutual Funds, Debt Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	63	57
Domestic Country [Member] | Mutual Funds, Debt Investments [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Domestic Country [Member] | Mutual Funds, Debt Investments [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	63	57
Domestic Country [Member] | Mutual Funds, Debt Investments [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Domestic Country [Member] | Collective Trusts, Equity Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	53	14
Domestic Country [Member] | Collective Trusts, Equity Investments [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Domestic Country [Member] | Collective Trusts, Equity Investments [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	53	14
Domestic Country [Member] | Collective Trusts, Equity Investments [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Foreign Country [Member] | Corporate Stock, Common [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	17	15
Foreign Country [Member] | Corporate Stock, Common [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	17	15
Foreign Country [Member] | Corporate Stock, Common [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Foreign Country [Member] | Corporate Stock, Common [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Foreign Country [Member] | Mutual Funds, Equity Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	120	124
Foreign Country [Member] | Mutual Funds, Equity Investments [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Foreign Country [Member] | Mutual Funds, Equity Investments [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	120	124
Foreign Country [Member] | Mutual Funds, Equity Investments [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Foreign Country [Member] | Collective Trusts, Equity Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	164	169
Foreign Country [Member] | Collective Trusts, Equity Investments [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Foreign Country [Member] | Collective Trusts, Equity Investments [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	164	169
Foreign Country [Member] | Collective Trusts, Equity Investments [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$0	$0

Nonpension_Postretirement_and_7

Nonpension Postretirement and Postemployment Benefits (VEBA Trusts) (Details) (Nonpension Postretirement [Member], VEBA Trusts [Member], USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015
Company's Asset Investment Strategy for its VEBA Trusts [Line Items]
Expected contributions by company	$16
Corporate Stock, Common [Member]
Company's Asset Investment Strategy for its VEBA Trusts [Line Items]
Weighted-average target asset allocation	75.00%
Debt Securities [Member]
Company's Asset Investment Strategy for its VEBA Trusts [Line Items]
Weighted-average target asset allocation	25.00%

Nonpension_Postretirement_and_8

Nonpension Postretirement and Postemployment Benefits (Change in Projected Benefit Obligations, Plan Assets, and Funded Status, Postemployment) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Amounts recognized in the Consolidated Balance Sheet consist of
Pension	$250	$419
Postemployment [Member]
Defined Benefit Plan Change In Accumulated Benefit Obligation Rollforward [Abstract]
Beginning of year	87	103
Service cost	7	7	7
Interest cost	4	3	4
Actuarial loss	8	-17
Benefits paid	-9	-9
Foreign currency adjustments	-1	0
Amendments	8	0
End of year	104	87	103
Funded status	-104	-87
Amounts recognized in the Consolidated Balance Sheet consist of
Other current liabilities	-8	-8
Other liabilities	-96	-79
Net amount recognized	-104	-87
Amounts recognized in accumulated other comprehensive income consist of
Net experience loss	30	25
Prior service cost	7	0
Net amount recognized	$37	$25

Nonpension_Postretirement_and_9

Nonpension Postretirement and Postemployment Benefits (Components of Postretirement Expense, Postemployment) (Details) (Postemployment [Member], USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Postemployment [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$7	$7	$7
Interest cost	4	3	4
Recognized net loss	3	5	5
Postemployment benefit expense	14	15	16
Estimated net experience loss for defined benefit pension plans, expected to be amortized	3
Estimated net prior service cost for defined benefit pension plans, expected to be amortized	$1

Recovered_Sheet1

Nonpension Postretirement and Postemployment Benefits (Benefit Payments) (Details) (USD $)	Jan. 03, 2015
In Millions, unless otherwise specified
Nonpension Postretirement [Member]
Defined Benefit Plan Disclosure [Line Items]
2015	$69
2016	71
2017	72
2018	72
2019	73
2020 - 2024	390
Postemployment [Member]
Defined Benefit Plan Disclosure [Line Items]
2015	8
2016	8
2017	8
2018	8
2019	8
2020 - 2024	$42

Recovered_Sheet2

Multiemployer Pension And Postretirement Plans (Narrative) (Details)	12 Months Ended
	Jan. 03, 2015
Minimum [Member]
Multiemployer Plans [Line Items]
Red zone multiemployer plans funded percentage	0.00%
Yellow zone multiemployer plans funded percentage	65.00%
Green zone multiemployer plan funded percentage	80.00%
Maximum [Member]
Multiemployer Plans [Line Items]
Red zone multiemployer plans funded percentage	65.00%
Yellow zone multiemployer plans funded percentage	80.00%
Green zone multiemployer plan funded percentage	100.00%

Recovered_Sheet3

Multiemployer Pension And Postretirement Plans (Multiemplyer Pension Plans Trust Funds) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015		Dec. 28, 2013		Dec. 29, 2012
Multiemployer Plans [Line Items]
Multiemployer Plan, company contributions	$14.70		$14.50		$13.50
Bakery and Confectionary Union and Industry International Pension Fund [Member]
Multiemployer Plans [Line Items]
Entity Tax Identification Number	526118572	[1]
Multiemployer Plan Number	1	[1]
Multiemployer Plans, Certified Zone Status	Red	[1]	Red	[1]
Multiemployer Plans, Certified Zone Status Date	31-Dec-14	[1]	31-Dec-13	[1]
Multiemployer Plans, Funding Improvement Plan and Rehabilitation Plan	Implemented	[1]
Multiemployer Plan, company contributions	5.4	[1]	5.2	[1]	4.8	[1]
Multiemployer Plans, Surcharge	Yes	[1]
Multiemployer Plans, collective bargaining arrangement first expiration date	31-Oct-15	[1]
Multiemployer Plans, collective bargaining arrangement last expiration date	30-Apr-17	[1]
Multiemployer Plans, collective bargaining arrangement expiration date	30-Apr-17	[1]
Bakery and Confectionary Union and Industry International Pension Fund [Member] | CBA Expiring 2017
Multiemployer Plans [Line Items]
Multiemployer Plans, percentage of employees covered by single collective bargaining arrangement	70.00%	[1]
Central States, Southeast and Southwest Areas Pension Fund [Member]
Multiemployer Plans [Line Items]
Entity Tax Identification Number	366044243	[2]
Multiemployer Plan Number	1	[2]
Multiemployer Plans, Certified Zone Status	Red	[2]	Red	[2]
Multiemployer Plans, Certified Zone Status Date	31-Dec-14	[2]	31-Dec-13	[2]
Multiemployer Plans, Funding Improvement Plan and Rehabilitation Plan	Implemented	[2]
Multiemployer Plan, company contributions	4.5	[2]	4.5	[2]	4.3	[2]
Multiemployer Plans, Surcharge	Yes	[2]
Multiemployer Plans, collective bargaining arrangement first expiration date	31-Jan-15	[2]
Multiemployer Plans, collective bargaining arrangement last expiration date	31-Oct-17	[2]
Multiemployer Plans, collective bargaining arrangement expiration date	27-Jul-17	[2]
Multiemployer Plans, percentage of employees covered by single collective bargaining arrangement	40.00%	[2]
Western Conference of Teamsters Pension Trust [Member]
Multiemployer Plans [Line Items]
Entity Tax Identification Number	916145047	[3]
Multiemployer Plan Number	1	[3]
Multiemployer Plans, Certified Zone Status	Green	[3]	Green	[3]
Multiemployer Plans, Certified Zone Status Date	31-Dec-14	[3]	31-Dec-13	[3]
Multiemployer Plans, Funding Improvement Plan and Rehabilitation Plan	NA	[3]
Multiemployer Plan, company contributions	1.6	[3]	1.5	[3]	1.3	[3]
Multiemployer Plans, Surcharge	No	[3]
Multiemployer Plans, collective bargaining arrangement first expiration date	31-Jan-15	[3]
Multiemployer Plans, collective bargaining arrangement last expiration date	29-Mar-18	[3]
Multiemployer Plans, collective bargaining arrangement expiration date	24-Mar-18	[3]
Multiemployer Plans, percentage of employees covered by single collective bargaining arrangement	40.00%	[3]
Hagerstown Motor Carriers and Teamsters Pension Fund [Member]
Multiemployer Plans [Line Items]
Entity Tax Identification Number	526045424
Multiemployer Plan Number	1
Multiemployer Plans, Certified Zone Status	Red		Red
Multiemployer Plans, Certified Zone Status Date	30-Jun-15		30-Jun-14
Multiemployer Plans, Funding Improvement Plan and Rehabilitation Plan	Implemented
Multiemployer Plan, company contributions	0.5		0.5		0.4
Multiemployer Plans, Surcharge	No
Multiemployer Plans, collective bargaining arrangement expiration date	3-Oct-15
Local 734 Pension Plan [Member]
Multiemployer Plans [Line Items]
Entity Tax Identification Number	516040136
Multiemployer Plan Number	1
Multiemployer Plans, Certified Zone Status	Red		Red
Multiemployer Plans, Certified Zone Status Date	30-Apr-15		30-Apr-14
Multiemployer Plans, Funding Improvement Plan and Rehabilitation Plan	Implemented
Multiemployer Plan, company contributions	0.3		0.3		0.3
Multiemployer Plans, Surcharge	Yes
Multiemployer Plans, collective bargaining arrangement expiration date	1-Apr-15
Twin Cities Bakery Drivers Pension Plan [Member]
Multiemployer Plans [Line Items]
Entity Tax Identification Number	416172265
Multiemployer Plan Number	1
Multiemployer Plans, Certified Zone Status	Green		Red
Multiemployer Plans, Certified Zone Status Date	31-Dec-14		31-Dec-13
Multiemployer Plans, Funding Improvement Plan and Rehabilitation Plan	NA
Multiemployer Plan, company contributions	0.2		0.2		0.2
Multiemployer Plans, Surcharge	Yes
Multiemployer Plans, collective bargaining arrangement expiration date	31-May-15
Upstate New York Bakery Drivers and Industry Pension Fund [Member]
Multiemployer Plans [Line Items]
Entity Tax Identification Number	150612437
Multiemployer Plan Number	1
Multiemployer Plans, Certified Zone Status	Green		Green
Multiemployer Plans, Certified Zone Status Date	30-Jun-14		30-Jun-13
Multiemployer Plans, Funding Improvement Plan and Rehabilitation Plan	NA
Multiemployer Plan, company contributions	0.2		0.1		0.1
Multiemployer Plans, Surcharge	No
Multiemployer Plans, collective bargaining arrangement expiration date	10-Sep-17
Other Plans [Member]
Multiemployer Plans [Line Items]
Multiemployer Plan, company contributions	$2		$2.20		$2.10
[1]	The Company is party to multiple CBAs requiring contributions to this fund, each with its own expiration date. Over 70 percent of the Company's participants in this fund are covered by a single CBA that expires on 4/30/2017.
[2]	The Company is party to multiple CBAs requiring contributions to this fund, each with its own expiration date. Over 40 percent of the Company's participants in this fund are covered by a single CBA that expires on 7/27/2017.
[3]	The Company is party to multiple CBAs requiring contributions to this fund, each with its own expiration date. Over 40 percent of the Company's participants in this fund are covered by a single CBA that expires on 3/24/2018.

Multiemployer_Pension_And_Post2

Multiemployer Pension And Postretirement Plans (Multiemplyer Pension Plans Trust Funds Contributions) (Details)	12 Months Ended
	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Hagerstown Motor Carriers and Teamsters Pension Fund [Member]
Multiemployer Plans [Line Items]
Period Contributions above 5%	TRUE
Plan year end date contributions to pension plan exceeded 5 percent of total contributions	6/30/13	6/30/12
Local 734 Pension Plan [Member]
Multiemployer Plans [Line Items]
Period Contributions above 5%	TRUE
Plan year end date contributions to pension plan exceeded 5 percent of total contributions	4/30/14	4/30/13	4/30/12
Twin Cities Bakery Drivers Pension Plan [Member]
Multiemployer Plans [Line Items]
Period Contributions above 5%	TRUE
Plan year end date contributions to pension plan exceeded 5 percent of total contributions	12/31/13	12/31/12	12/31/11
Upstate New York Bakery Drivers and Industry Pension Fund [Member]
Multiemployer Plans [Line Items]
Period Contributions above 5%	TRUE
Plan year end date contributions to pension plan exceeded 5 percent of total contributions	6/30/12

Multiemployer_Pension_And_Post3

Multiemployer Pension And Postretirement Plans (Multiemplyer Pension Plans Curtailments, Settlements and Termination Benefits) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Multiemployer Plans [Line Items]
Multiemployer Plan, company contributions	$14.70	$14.50	$13.50
Multiemployer Pension Plans Defined Benefit [Member]
Multiemployer Plans [Line Items]
Multiemployer Plans, withdrawal obligation	0	0	-5
Multiemployer Other Postretirement Benefit Plans Defined Benefit Member [Member]
Multiemployer Plans [Line Items]
Multiemployer Plan, company contributions	$14

Income_Taxes_Narrative_Details

Income Taxes (Narrative) (Details) (USD $)	12 Months Ended
	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Effective income tax rate	22.60%	30.40%	27.40%
Accumulated foreign earnings considered permanently reinvested	$2,200,000,000	$2,200,000,000	$1,700,000,000
Deferred taxes related to foreign earnings not considered indefinitely reinvested	1,000,000	2,000,000	5,000,000
Unremitted foreign earnings	23,000,000	24,000,000	258,000,000
Reversal of valuation allowance against U.S. foreign tax credits	-7.90%	-3.50%	-4.40%
Tax benefits of carryforwards	54,000,000	55,000,000
Valuation allowances	39,000,000	49,000,000
Cash paid for income taxes	414,000,000	426,000,000	508,000,000
Percentage of provision for U.S. Federal income taxes to consolidated income tax provision	60.00%
Unrecognized tax benefits classified as a current liability	9,000,000
Projected additions to unrecognized tax benefits related primarily to ongoing intercompany transfer pricing activity	9,000,000
Unrecognized tax benefits that would affect the Company's effective tax rate in future periods	56,000,000
Increase or (reduction) in tax-related interest and penalties	3,000,000	4,000,000	4,000,000
Accrued tax-related interest and penalties	20,000,000	17,000,000	19,000,000
Penalties and cash settlements		$6,000,000

Income_Taxes_Income_before_inc

Income Taxes (Income before income taxes and the provision for U.S. federal, state, and foreign taxes on earnings) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Income Taxes [Abstract]
Income before income taxes, United States	$502	$2,102	$1,008
Income before income taxes, Foreign	323	504	317
Income before income taxes	825	2,606	1,325
Income taxes, currently payable, Federal	301	302	383
Income taxes, currently payable, State	36	68	34
Income taxes, currently payable, Foreign	103	105	105
Income taxes, currently payable	440	475	522
Income taxes, deferred, Federal	-186	331	-129
Income taxes, deferred, State	-14	-2	8
Income taxes, deferred, Foreign	-54	-12	-38
Income taxes, deferred	-254	317	-159
Total income taxes	$186	$792	$363

Income_Taxes_Difference_Betwee

Income Taxes (Difference Between U.S. Federal Statutory Tax Rate and the Company's Effective Income Tax Rate) (Details)	12 Months Ended
	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Income Taxes [Abstract]
U.S. statutory income tax rate	35.00%	35.00%	35.00%
Foreign rates varying from 35%	-7.90%	-3.50%	-4.40%
State income taxes, net of federal benefit	1.70%	1.70%	2.10%
Cost (benefit) of remitted and unremitted foreign earnings	-0.10%	-0.40%	-1.80%
Tax audit activity	0.20%	-0.10%	0.00%
Net change in valuation allowances	0.30%	0.40%	0.80%
Statutory rate changes, deferred tax impact	-0.40%	-0.50%	-0.30%
U.S. deduction for qualified production activities	-2.80%	-0.90%	-2.10%
Other	-3.40%	-1.30%	-1.90%
Effective income tax rate	22.60%	30.40%	27.40%

Income_Taxes_Deferred_tax_asse

Income Taxes (Deferred tax assets and deferred tax liabilities) (Details) (USD $)	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
In Millions, unless otherwise specified
Deferred tax assets, U.S. state income taxes	$10	$13
Deferred tax liabilities, U.S. state income taxes	49	61
Deferred tax assets, advertising and promotion related	21	23
Deferred tax liabilities, advertising and promotion related	0	0
Deferred tax assets, wages and payroll taxes	36	36
Deferred tax assets, inventory valuation	0	37
Deferred tax assets, employee benefits	305	65
Deferred tax liabilities, employee benefits	0	0
Deferred tax assets, operating loss carryforwards	54	55
Deferred tax assets, hedging transactions	48	10
Deferred tax liabilities, hedging transactions	0	0
Deferred tax assets, depreciation and asset disposals	0	0
Deferred tax liabilities, depreciation and asset disposals	352	366
Deferred tax liabilities, trademarks and other intangibles	555	529
Deferred tax assets, deferred compensation	35	36
Deferred tax assets, stock options	38	36
Deferred tax liabilities, unremitted foreign earnings	1	2	5
Deferred tax assets, other	84	109
Deferred tax liabilities, other	0	0
Deferred tax assets, gross	631	420
Deferred tax liabilities, gross	957	958
Deferred tax assets, less valuation allowance	-51	-61	-59	-46
Total deferred tax assets	580	359
Net deferred tax asset (liability)	-377	-599
Other Current Assets [Member]
Net deferred tax asset (liability)	184	195
Other Current Liabilities [Member]
Net deferred tax asset (liability)	-10	-13
Other Assets [Member]
Net deferred tax asset (liability)	175	147
Other Liabilities [Member]
Net deferred tax asset (liability)	($726)	($928)

Income_Taxes_Change_In_Valuati

Income Taxes (Change In Valuation Allowance Against Deferred Tax Assets) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Income Taxes [Abstract]
Balance at beginning of year	$61	$59	$46
Additions charged to income tax expense	9	17	12
Reductions credited to income tax expense	-3	-3	0
Other	0	-10	0
Currency translation adjustments	-16	-2	1
Balance at end of year	$51	$61	$59

Income_Taxes_Unrecognized_tax_

Income Taxes (Unrecognized tax benefit reconciliation) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Income Taxes [Abstract]
Balance at beginning of year	$79	$80	$66
Additions, current year	7	9	8
Additions, prior years	10	17	14
Reductions, prior years	-12	-13	-4
Settlements	-2	-14	-1
Lapses in statutes of limitation	-4	0	-3
Balance at end of year	$78	$79	$80

Derivative_Instruments_and_Fai2

Derivative Instruments and Fair Value Measurements (Narrative) (Details) (USD $)	Jan. 03, 2015
In Millions, unless otherwise specified
Fair value of derivative instruments with credit-risk-related contingent features in a liability position	$26
Additional collateral required to be posted if the credit-risk related contingent features were triggered	26
Margin deposits posted	$50
Five largest customers percentage of consolidated trade receivables	30.00%

Derivative_Instruments_and_Fai3

Derivative Instruments and Fair Value Measurements (Total Notional Amounts of the Company's Derivative Instruments) (Details) (USD $)	Jan. 03, 2015	Dec. 28, 2013
In Millions, unless otherwise specified
Notional amount of derivatives	$4,214	$3,278
Foreign Currency Exchange Contracts [Member]
Notional amount of derivatives	764	517
Interest Rate Contracts [Member]
Notional amount of derivatives	2,958	2,400
Commodity Contracts [Member]
Notional amount of derivatives	$492	$361

Derivative_Instruments_and_Fai4

Derivative Instruments and Fair Value Measurements (Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) (USD $)	Jan. 03, 2015		Dec. 28, 2013
Long-term Debt	$6,542,000,000		$6,619,000,000
Other current liabilities	1,401,000,000		1,375,000,000
Net Investment Hedging [Member]
Long-term Debt	600,000,000
Designated as Hedging Instrument [Member]
Assets	36,000,000		7,000,000
Liabilities	-48,000,000		-95,000,000
Not Designated [Member]
Assets	7,000,000		3,000,000
Liabilities	-40,000,000		-7,000,000
Level 1 [Member] | Designated as Hedging Instrument [Member]
Assets	0		0
Liabilities	0		0
Level 1 [Member] | Not Designated [Member]
Assets	7,000,000		3,000,000
Liabilities	-40,000,000		-7,000,000
Level 2 [Member] | Designated as Hedging Instrument [Member]
Assets	36,000,000		7,000,000
Liabilities	-48,000,000		-95,000,000
Level 2 [Member] | Not Designated [Member]
Assets	0		0
Liabilities	0		0
Foreign Currency Exchange Contracts [Member] | Other Current Assets [Member] | Designated as Hedging Instrument [Member]
Assets	29,000,000		7,000,000
Foreign Currency Exchange Contracts [Member] | Other Current Assets [Member] | Level 1 [Member] | Designated as Hedging Instrument [Member]
Assets	0		0
Foreign Currency Exchange Contracts [Member] | Other Current Assets [Member] | Level 2 [Member] | Designated as Hedging Instrument [Member]
Assets	29,000,000		7,000,000
Foreign Currency Exchange Contracts [Member] | Other Current Liabilities [Member] | Designated as Hedging Instrument [Member]
Liabilities	-6,000,000		-8,000,000
Other current liabilities	-3,000,000		0
Foreign Currency Exchange Contracts [Member] | Other Current Liabilities [Member] | Level 1 [Member] | Designated as Hedging Instrument [Member]
Liabilities	0		0
Other current liabilities	0		0
Foreign Currency Exchange Contracts [Member] | Other Current Liabilities [Member] | Level 2 [Member] | Designated as Hedging Instrument [Member]
Liabilities	-6,000,000		-8,000,000
Other current liabilities	-3,000,000		0
Interest Rate Contracts [Member] | Level 2 [Member]
Fair value of the related hedged portion of long term debt	2,500,000,000		2,500,000,000
Interest Rate Contracts [Member] | Other Assets [Member] | Designated as Hedging Instrument [Member]
Assets	7,000,000	[1]	0	[1]
Interest Rate Contracts [Member] | Other Assets [Member] | Level 1 [Member] | Designated as Hedging Instrument [Member]
Assets	0	[1]	0	[1]
Interest Rate Contracts [Member] | Other Assets [Member] | Level 2 [Member] | Designated as Hedging Instrument [Member]
Assets	7,000,000	[1]	0	[1]
Interest Rate Contracts [Member] | Other Liabilities [Member] | Designated as Hedging Instrument [Member]
Liabilities	-16,000,000		-59,000,000
Interest Rate Contracts [Member] | Other Liabilities [Member] | Level 1 [Member] | Designated as Hedging Instrument [Member]
Liabilities	0		0
Interest Rate Contracts [Member] | Other Liabilities [Member] | Level 2 [Member] | Designated as Hedging Instrument [Member]
Liabilities	-16,000,000		-59,000,000
Commodity Contracts [Member] | Other Current Assets [Member] | Not Designated [Member]
Assets	7,000,000		3,000,000
Commodity Contracts [Member] | Other Current Assets [Member] | Level 1 [Member] | Not Designated [Member]
Assets	7,000,000		3,000,000
Commodity Contracts [Member] | Other Current Assets [Member] | Level 2 [Member] | Not Designated [Member]
Assets	0		0
Commodity Contracts [Member] | Other Current Liabilities [Member] | Designated as Hedging Instrument [Member]
Liabilities	-12,000,000		-9,000,000
Commodity Contracts [Member] | Other Current Liabilities [Member] | Not Designated [Member]
Liabilities	-36,000,000		-7,000,000
Commodity Contracts [Member] | Other Current Liabilities [Member] | Level 1 [Member] | Designated as Hedging Instrument [Member]
Liabilities	0		0
Commodity Contracts [Member] | Other Current Liabilities [Member] | Level 1 [Member] | Not Designated [Member]
Liabilities	-36,000,000		-7,000,000
Commodity Contracts [Member] | Other Current Liabilities [Member] | Level 2 [Member] | Designated as Hedging Instrument [Member]
Liabilities	-12,000,000		-9,000,000
Commodity Contracts [Member] | Other Current Liabilities [Member] | Level 2 [Member] | Not Designated [Member]
Liabilities	0		0
Commodity Contracts [Member] | Other Liabilities [Member] | Designated as Hedging Instrument [Member]
Liabilities	-11,000,000		-19,000,000
Commodity Contracts [Member] | Other Liabilities [Member] | Not Designated [Member]
Other Liabilities	-4,000,000		0
Commodity Contracts [Member] | Other Liabilities [Member] | Level 1 [Member] | Designated as Hedging Instrument [Member]
Liabilities	0		0
Commodity Contracts [Member] | Other Liabilities [Member] | Level 1 [Member] | Not Designated [Member]
Other Liabilities	-4,000,000		0
Commodity Contracts [Member] | Other Liabilities [Member] | Level 2 [Member] | Designated as Hedging Instrument [Member]
Liabilities	-11,000,000		-19,000,000
Commodity Contracts [Member] | Other Liabilities [Member] | Level 2 [Member] | Not Designated [Member]
Other Liabilities	$0		$0
[1]	The fair value of the related hedged portion of the Company's long-term debt, a level 2 liability, was $2.5 billion as of January 3, 2015 and December 28, 2013.

Derivative_Instruments_and_Fai5

Derivative Instruments and Fair Value Measurements (Schedule of Offsetting Assets and Liabilities) (Details) (USD $)	Jan. 03, 2015	Dec. 28, 2013
In Millions, unless otherwise specified
Net Amounts of Assets Presented in the Balance Sheet	$43	$10
Financial Instruments, Gross Amount Not Offset In Balance Sheet	-29	-10
Cash Collateral Posted, Gross Amount Not Offset In Balance Sheet	0	0
Net Amount, Assets Derivatives	14	0
Net Amounts of Liabilities Presented in Balance Sheet	-88	-102
Financial Instruments, Gross Amount Not Offset In Balance Sheet	29	10
Cash Collateral Received, Gross Amount Not Offset In Balance Sheet	50	21
Net Amount, Liabilities Derivatives	($9)	($71)

Derivative_Instruments_and_Fai6

Derivative Instruments and Fair Value Measurements (The Effect of Derivative Instruments on the Consolidated Statement of Income) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015		Dec. 28, 2013
Net deferred gain expected to be reclassified from accumulated other comprehensive income to income within the next 12 months	$14
Fair Value Hedging [Member]
Gain (loss) recognized in income	20	[1]	-3	[1]
Fair Value Hedging [Member] | Foreign Currency Exchange Contracts [Member] | Other Income (Expense), Net [Member]
Gain (loss) recognized in income	3	[1]	2	[1]
Fair Value Hedging [Member] | Interest Rate Contracts [Member] | Interest Expense [Member]
Gain (loss) recognized in income	17	[1]	-5	[1]
Cash Flow Hedging [Member]
Gain (loss) recognized in AOCI	-35		11
Gain (loss) reclassified from AOCI into income	10		6
Gain (loss) recognized in income	-4	[1]	0	[1]
Cash Flow Hedging [Member] | Interest Rate Contracts [Member]
Gain (loss) recognized in income	0	[1]	0	[1]
Cash Flow Hedging [Member] | Interest Rate Contracts [Member] | Interest Expense [Member]
Gain (loss) recognized in AOCI	-69
Net Investment Hedging [Member]
Gain (loss) recognized in AOCI	86		0
Net Investment Hedging [Member] | Foreign Currency Denominated Long Term Debt [Member]
Gain (loss) recognized in AOCI	86		0
Not Designated [Member]
Gain (loss) recognized in income	-81		-34
Not Designated [Member] | Foreign Currency Exchange Contracts [Member] | Other Income (Expense), Net [Member]
Gain (loss) recognized in income	1		3
Not Designated [Member] | Interest Rate Contracts [Member] | Interest Expense [Member]
Gain (loss) recognized in income	-4		0
Interest Expense [Member] | Cash Flow Hedging [Member] | Interest Rate Contracts [Member]
Gain (loss) recognized in AOCI			0
Gain (loss) reclassified from AOCI into income	9		4
Selling, General and Administrative Expense [Member] | Cash Flow Hedging [Member] | Foreign Currency Exchange Contracts [Member] | Other Income (Expense), Net [Member]
Gain (loss) recognized in AOCI	4		-2
Gain (loss) reclassified from AOCI into income	3		2
Gain (loss) recognized in income	0	[1]	0	[1]
Selling, General and Administrative Expense [Member] | Not Designated [Member] | Commodity Contracts [Member]
Gain (loss) recognized in income	-5		0
Cost of Goods Sold [Member] | Cash Flow Hedging [Member] | Foreign Currency Exchange Contracts [Member] | Other Income (Expense), Net [Member]
Gain (loss) recognized in AOCI	34		13
Gain (loss) reclassified from AOCI into income	5		10
Gain (loss) recognized in income	-4	[1]	0	[1]
Cost of Goods Sold [Member] | Cash Flow Hedging [Member] | Commodity Contracts [Member] | Other Income (Expense), Net [Member]
Gain (loss) recognized in AOCI	-4		0
Gain (loss) reclassified from AOCI into income	-7		-10
Gain (loss) recognized in income	0	[1]	0	[1]
Cost of Goods Sold [Member] | Not Designated [Member] | Commodity Contracts [Member]
Gain (loss) recognized in income	($73)		($37)
[1]	Includes the ineffective portion and amount excluded from effectiveness testing.

Derivative_Instruments_and_Fai7

Derivative Instruments and Fair Value Measurements (Assets Measured at Fair Value) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013
Asset Impairment Charges, Total		($4)
Level 3 [Member]
Long-lived assets, estimated fair value	3	38
Total	3	38
Long-lived assets, Impairment Loss	-21	-70
Asset Impairment Charges, Total	-21	-70
Project K [Member]
Long-lived assets, estimated fair value	3	31
Noncurrent assets	$24	$97

Derivative_Instruments_and_Fai8

Derivative Instruments and Fair Value Measurements (Fair Value of Long-term Debt) (Details) (USD $)	Jan. 03, 2015	Dec. 28, 2013
In Millions, unless otherwise specified
Derivative Instruments and Fair Value Measurements [Abstract]
Current maturities of long-term debt, fair value	$607
Long-term debt, fair value	6,507
Long-term debt total, fair value	7,114
Current maturities of long-term debt, carrying value	607	289
Long-term debt, carrying value	5,935	6,330
Long-term debt total, carrying value	$6,542	$6,619

Venezuela_Details

Venezuela (Details) (USD $)	1 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Feb. 28, 2013	Dec. 28, 2013	Jan. 03, 2015	Feb. 14, 2013	Feb. 12, 2013	Mar. 30, 2013
Venezuelan Subsidiary [Member]
Percentage of Net Sales			2.00%
Percentage Of Operating Profit			5.00%
CENCOEX (formerly known as CADIVI) [Member]
Foreign Currency Exchange Rate Remeasurement				6.3	4.3
Amount Recognized in Income Due to Inflationary Accounting		$15
Net Monetary Assets			100
Foreign Currency Exchange Rate Devaluation	46.50%
SICAD1 [Member]
Foreign Currency Exchange Rate Remeasurement			12			6.3
SIMADI (formerly known as SICAD2) [Member]
Foreign Currency Exchange Rate Remeasurement			51

Quarterly_Financial_Data_unaud2

Quarterly Financial Data (unaudited) (Narrative) (Details) (USD $)	Jan. 03, 2015
Quarterly Financial Data [Abstract]
Stock price at year-end	$65.48
Number of shareholders of record at year-end	37,314

Quarterly_Financial_Data_unaud3

Quarterly Financial Data (unaudited) (Net sales and gross profit) (Details) (USD $)	3 Months Ended								12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Quarterly Financial Data [Abstract]
Net sales	$3,514	$3,639	$3,685	$3,742	$3,501	$3,716	$3,714	$3,861	$14,580	$14,792	$14,197
Gross profit	$856	$1,292	$1,411	$1,504	$1,783	$1,450	$1,477	$1,393	$5,063	$6,103

Quarterly_Financial_Data_unaud4

Quarterly Financial Data (unaudited) (Net income and earnings per share) (Details) (USD $)	3 Months Ended								12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Jan. 03, 2015	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Quarterly Financial Data [Abstract]
Net income attributable to Kellogg Company	($293)	$224	$295	$406	$818	$326	$352	$311	$632	$1,807	$961
Basic EPS	($0.82)	$0.63	$0.82	$1.13	$2.26	$0.90	$0.96	$0.86	$1.76	$4.98	$2.68
Diluted EPS	($0.82)	$0.62	$0.82	$1.12	$2.24	$0.90	$0.96	$0.85	$1.75	$4.94	$2.67

Quarterly_Financial_Data_unaud5

Quarterly Financial Data (unaudited) (Dividends and stock prices) (Details) (USD $)	3 Months Ended								12 Months Ended
	Jan. 03, 2015	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Quarterly Financial Data [Abstract]
Dividend per share	$0.49	$0.49	$0.46	$0.46	$0.46	$0.46	$0.44	$0.44	$1.90	$1.80	$1.74
High stock price	$67.24	$66.41	$69.39	$62.13	$64.92	$67.98	$66.84	$64.75	$67.24	$64.92
Low stock price	$59.70	$59.83	$62.62	$56.90	$58.01	$58.59	$61.03	$55.02	$59.70	$58.01

Quarterly_Financial_Data_unadi

Quarterly Financial Data (unadited) (Asset impairment and MTM gains and losses) (Details) (USD $)	3 Months Ended								12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Jan. 03, 2015	Dec. 28, 2013
Quarterly Financial Data [Abstract]
Asset impairment and exit costs	$74	$92	$78	$54	$201	$29	$7	$13	$298	$250
Gain Loss On Mark To Market Adjustments	822	66	12	-116	-1,006	-2	7	54	784	-947
Pre Tax Charges Gains In Operating Profit	$896	$158	$90	($62)	($805)	$27	$14	$67	$1,082	($697)

Reportable_Segments_Narrative_

Reportable Segments (Narrative) (Details)	12 Months Ended
	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Reportable segments information	The Company has the following reportable segments: U.S. Morning Foods; U.S. Snacks; U.S. Specialty; North America Other; Europe; Latin America; and Asia Pacific.  The Company manages its operations through eight operating segments that are based on product category or geographic location. These operating segments are evaluated for similarity with regards to economic characteristics, products, production processes, types or classes of customers, distribution methods and regulatory environments to determine if they can be aggregated into reportable segments.  Beginning in the first quarter of 2013, the Kashi operating segment, which was formerly aggregated with the U.S. Morning Foods operating segment and reported as U.S. Morning Foods and Kashi, was revised due to a reorganization of the business. Kashi operating segment results of prior years were recast between U.S. Morning Foods and U.S. Snacks to conform with current presentation. The reportable segments are discussed in greater detail below.
Walmart Stores, Inc [Member]
Largest customer, percentage of consolidated net sales	21.00%	21.00%	20.00%
U.S. Morning Foods [Member]
Reportable segments information	The U.S. Morning Foods operating segment includes cereal, toaster pastries, health and wellness bars, and beverages.
U.S. Snacks [Member]
Reportable segments information	U.S. Snacks includes cookies, crackers, cereal bars, savory snacks and fruit-flavored snacks.
U.S. Specialty [Member]
Reportable segments information	U.S. Specialty primarily represents food away from home channels, including food service, convenience, vending, Girl Scouts and food manufacturing. The food service business is mostly non-commercial, serving institutions such as schools and hospitals. The convenience business includes traditional convenience stores as well as alternate retailing outlets.
North America Other [Member]
Reportable segments information	North America Other includes the U.S. Frozen and Canada operating segments.  As these operating segments are not considered economically similar enough to aggregate with other operating segments and are immaterial for separate disclosure, they have been grouped together as a single reportable segment.
Europe [Member]
Reportable segments information	Europe which consists principally of European countries;
Latin America [Member]
Reportable segments information	Latin America which is comprised of Central and South America and includes Mexico; and
Asia Pacific [Member]
Reportable segments information	Asia Pacific which is comprised of South Africa, Australia and other Asian and Pacific markets.

Reportable_Segments_Reportable

Reportable Segments (Reportable Segment Information) (Details) (USD $)	3 Months Ended								12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Jan. 03, 2015		Dec. 28, 2013		Dec. 29, 2012
Net sales	$3,514	$3,639	$3,685	$3,742	$3,501	$3,716	$3,714	$3,861	$14,580		$14,792		$14,197
Operating profit									1,024		2,837		1,562
Depreciation and amortization									503		532		448
Interest expense									209		235		261
Income taxes									186		792		363
Total assets	15,153				15,474				15,153		15,474		15,169
Additions to long-lived assets									582		637		891
U.S. Morning Foods [Member]
Net sales									3,338		3,465		3,533
Operating profit									490		485		588
Depreciation and amortization									136		181	[1]	132
U.S. Snacks [Member]
Net sales									3,495		3,534		3,400
Operating profit									395		447		476
Depreciation and amortization									166	[1]	144		123
U.S. Specialty [Member]
Net sales									1,198		1,202		1,121
Operating profit									266		265		241
Depreciation and amortization									10		8		5
North America Other [Member]
Net sales									1,468		1,515		1,485
Operating profit									252		275		265
Depreciation and amortization									32		30		34
Interest expense									6		6		4
North America [Member]
Total assets	10,489				10,643				10,489		10,643		10,602
Additions to long-lived assets									295		296		549
Europe [Member]
Net sales									2,887		2,860		2,527
Operating profit									240		256		261
Depreciation and amortization									92		84		66
Interest expense									5		6		4
Income taxes									-3		4		-21
Total assets	2,893				3,007				2,893		3,007		3,014
Additions to long-lived assets									129		182		209
Latin America [Member]
Net sales									1,205		1,195		1,121
Operating profit									169		157		167
Depreciation and amortization									32		29		26
Interest expense									3		1		4
Income taxes									42		35		36
Total assets	905				1,052				905		1,052		861
Additions to long-lived assets									31		70		40
Asia Pacific [Member]
Net sales									989		1,021		1,010
Operating profit									45		60		85
Depreciation and amortization									31		40	[1]	55
Interest expense									1		3		4
Income taxes									-1		6		9
Total assets	1,111				1,049				1,111		1,049		1,107
Additions to long-lived assets									120		85		79
Total Reportable Segments [Member]
Operating profit									1,857		1,945		2,083
Depreciation and amortization									499		516		441
Corporate [Member]
Operating profit									-833		892		-521
Depreciation and amortization									4		16		7
Interest expense									194		219		245
Total assets	1,796				2,583				1,796		2,583		3,384
Additions to long-lived assets									7		4		14
Corporate and North America [Member]
Income taxes									148		747		339
Elimination entries [Member]
Total assets	($2,041)				($2,860)				($2,041)		($2,860)		($3,799)
[1]	Includes asset impairment charges as discussed in Note 12.

Reportable_Segments_Net_sales_

Reportable Segments (Net sales to external customers and long-lived assets) (Details) (USD $)	3 Months Ended								12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Net sales	$3,514	$3,639	$3,685	$3,742	$3,501	$3,716	$3,714	$3,861	$14,580	$14,792	$14,197
Property, net	3,769				3,856				3,769	3,856	3,782
United States [Member]
Net sales									8,876	9,060	8,875
Property, net	2,283				2,343				2,283	2,343	2,427
All Other Countries [Member]
Net sales									5,704	5,732	5,322
Property, net	$1,486				$1,513				$1,486	$1,513	$1,355

Reportable_Segments_Supplement

Reportable Segments (Supplemental product information) (Details) (USD $)	3 Months Ended								12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Net sales	$3,514	$3,639	$3,685	$3,742	$3,501	$3,716	$3,714	$3,861	$14,580	$14,792	$14,197
Retail Channel Cereal [Member]
Net sales									6,268	6,451	6,652
Retail Channel Snacks [Member]
Net sales									6,622	6,625	5,891
Frozen And Specialty Channels [Member]
Net sales									$1,690	$1,716	$1,654

Supplemental_Financial_Stateme2

Supplemental Financial Statement Data (Consolidated Statement of Income) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Supplemental Financial Statement Data [Abstract]
Research and development expense	$199	$199	$206
Advertising expense	$1,094	$1,131	$1,120

Supplemental_Financial_Stateme3

Supplemental Financial Statement Data (Consolidated Balance Sheet) (Details) (USD $)	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
In Millions, unless otherwise specified
Supplemental Financial Statement Data [Abstract]
Trade receivables	$1,101	$1,231
Allowance for doubtful accounts	-7	-5	-6	-8
Refundable income taxes	16	52
Other Receivables	166	146
Accounts receivable, net	1,276	1,424
Raw materials and supplies	327	319
Finished goods and materials in process	952	929
Inventories	1,279	1,248
Deferred income taxes	184	195
Other prepaid assets	158	127
Other current assets	342	322
Land	105	125
Buildings	2,154	2,155
Machinery and equipment	6,017	6,059
Capitalized software	327	325
Construction in progress	692	693
Accumulated depreciation	-5,526	-5,501
Property, net	3,769	3,856	3,782
Other intangibles	2,338	2,401
Accumulated amortization	-43	-34	-25
Other intangibles, net	2,295	2,367
Pension	250	419
Other	528	514
Other assets	778	933
Accrued income taxes	39	69
Accrued salaries and wages	320	327
Accrued advertising and promotion	446	476
Other	596	503
Other current liabilities	1,401	1,375
Nonpension postretirement benefits	82	68
Other	418	429
Other liabilities	$500	$497

Supplemental_Financial_Stateme4

Supplemental Financial Statement Data (Allowance for doubtful accounts) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Supplemental Financial Statement Data [Abstract]
Balance at beginning of year	$5	$6	$8
Additions charged to expense	6	2	1
Doubtful accounts charged to reserve	-4	-3	-3
Balance at end of year	$7	$5	$6

Subsequent_Event_Narrative_Det

Subsequent Event (Narrative) (Details) (Bisco Misr[Member], USD $)	Jan. 31, 2015
In Millions, unless otherwise specified
Bisco Misr[Member]
Subsequent Event [Line Items]
Business Acquisition Cost Of Acquired Entity Transaction Costs	$125