Kellogg (K) 10-Q 8 Nov 23 2023 Q3 Quarterly report Financial data

Cover Page

Cover Page	9 Months Ended
	Sep. 30, 2023 shares
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Entity Registrant Name	Kellanova
Document Period End Date	Sep. 30, 2023
Document Transition Report	false
Entity File Number	1-4171
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	38-0710690
Entity Address, Address Line One	412 N. Wells Street
Entity Address, City or Town	Chicago
Entity Address, State or Province	IL
Entity Address, Postal Zip Code	60654
City Area Code	269
Local Phone Number	961-2000
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)	342,519,743
Amendment Flag	false
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2023
Entity Central Index Key	0000055067
Current Fiscal Year End Date	--12-30
Common stock
Entity Information [Line Items]
Title of 12(b) Security	Common Stock, $.25 par value per share
Trading Symbol	K
Security Exchange Name	NYSE
1.000% Senior Notes Due 2024 [Member]
Entity Information [Line Items]
Title of 12(b) Security	1.000% Senior Notes due 2024
Trading Symbol	K 24
Security Exchange Name	NYSE
1.250% Senior Notes Due 2025 [Member]
Entity Information [Line Items]
Title of 12(b) Security	1.250% Senior Notes due 2025
Trading Symbol	K 25
Security Exchange Name	NYSE
0.500% Senior Notes Due 2029
Entity Information [Line Items]
Title of 12(b) Security	0.500% Senior Notes due 2029
Trading Symbol	K 29
Security Exchange Name	NYSE

Consolidated Balance Sheet (Una

Consolidated Balance Sheet (Unaudited) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Current assets
Cash and cash equivalents	$ 1,099	$ 299
Accounts receivable, net	1,876	1,736
Inventories	1,632	1,768
Other current assets	379	383
Total current assets	4,986	4,186
Property, net	3,762	3,789
Operating lease right-of-use assets	605	617
Goodwill	5,496	5,686
Other intangibles, net	2,065	2,296
Investments in unconsolidated entities	194	432
Other assets	1,587	1,490
Total assets	18,695	18,496
Current liabilities
Current maturities of long-term debt	1,193	780
Notes payable	353	467
Accounts payable	2,789	2,973
Current operating lease liabilities	127	121
Accrued advertising and promotion	886	766
Accrued salaries and wages	305	370
Other current liabilities	871	872
Total current liabilities	6,524	6,349
Long-term debt	5,530	5,317
Operating lease liabilities	471	486
Deferred income taxes	702	760
Pension liability	722	709
Other liabilities	469	500
Commitments and contingencies
Equity
Common stock, $.25 par value	105	105
Capital in excess of par value	1,070	1,068
Retained earnings	9,509	9,197
Treasury stock, at cost	(4,692)	(4,721)
Accumulated other comprehensive income (loss)	(1,954)	(1,708)
Total Kellanova equity	4,038	3,941
Noncontrolling interests	239	434
Total equity	4,277	4,375
Total liabilities and equity	$ 18,695	$ 18,496

Consolidated Balance Sheet (U_2

Consolidated Balance Sheet (Unaudited) (Parenthetical) - $ / shares	Sep. 30, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.25	$ 0.25

Consolidated Statement of Incom

Consolidated Statement of Income (Unaudited) - USD ($) shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022
Income Statement [Abstract]
Net sales	$ 3,939	$ 3,946	$ 12,033	$ 11,482
Cost of goods sold	2,596	2,793	8,147	8,027
Selling, general and administrative expense	861	785	2,455	2,155
Operating profit	482	368	1,431	1,300
Interest expense	83	39	245	149
Other income (expense), net	(24)	54	38	188
Income before income taxes	375	383	1,224	1,339
Income tax expense (benefit)	104	74	294	283
Earnings (loss) from unconsolidated entities	(1)	3	4	6
Net income	270	312	934	1,062
Net income attributable to noncontrolling interests	1	2	10	4
Net income attributable to Kellanova	$ 269	$ 310	$ 924	$ 1,058
Per share amounts:
Basic earnings (in dollars per share)	$ 0.79	$ 0.91	$ 2.70	$ 3.11
Diluted earnings (in dollars per share)	$ 0.78	$ 0.90	$ 2.68	$ 3.09
Average shares outstanding:
Basic (in shares)	342,000	341,000	342,000	340,000
Diluted (in shares)	345,000	344,000	345,000	343,000
Actual shares outstanding at period end (in shares)	343,000	341,000	343,000	341,000

Consolidated Statement of Compr

Consolidated Statement of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 270	$ 312	$ 934	$ 1,062
Other comprehensive income (loss), pre-tax:
Foreign currency translation adjustments, pre-tax	(134)	(249)	(475)	(509)
Net investment hedges, pre-tax
Net investment hedge gain (loss), pre-tax	111	260	17	616
Cash flow hedges, pre-tax:
Net deferred gain (loss) on cash flow hedges, pre-tax	40	62	37	213
Reclassification to net income, pre-tax	2	(14)	7	(6)
Postretirement and postemployment benefits reclassification to net income, pre-tax:
Net experience (gain) loss	(1)	0	(2)	(2)
Available-for-sale securities, pre-tax
Unrealized gain (loss) on available-for-sale securities, pre-tax	(1)	(2)	0	(6)
Reclassification to net income on available-for-sale securities, pre-tax	1	1	1	1
Other comprehensive income (loss), pre-tax	18	58	(415)	307
Other comprehensive income (loss), tax (expense) benefit
Foreign currency translation adjustments, tax (expense) benefit	1	4	3	6
Net investment hedges, tax (expense) benefit
Net investment hedge gain (loss), tax (expense) benefit	(26)	(68)	(4)	(162)
Cash flow hedges, tax (expense) benefit:
Net deferred gain (loss) on cash flow hedges, tax (expense) benefit	(10)	(16)	(9)	(56)
Reclassification to net income, tax (expense) benefit	(1)	3	(2)	1
Postretirement and postemployment benefits reclassification to net income, tax (expense) benefit:
Net experience loss, tax (expense) benefit	0	0	0	1
Available-for-sale securities, tax (expense) benefit
Unrealized gain (loss) on available-for-sale securities, tax (expense) benefit	0	0	0	0
Reclassification to net income on available for sale of securities, tax (expense) benefit	0	0	0	0
Other comprehensive income (loss), tax (expense) benefit	(36)	(77)	(12)	(210)
Other comprehensive income (loss), after tax:
Foreign currency translation adjustments, after-tax	(133)	(245)	(472)	(503)
Net investment hedges, after tax
Net investment hedge gain (loss), after-tax	85	192	13	454
Cash flow hedges, after tax
Net deferred gain (loss) on cash flow hedges	30	46	28	157
Reclassification to net income, after tax	1	(11)	5	(5)
Postretirement and postemployment benefits reclassification to net income, after-tax:
Net experience (gain) loss, after-tax	(1)	0	(2)	(1)
Available-for-sale securities, after tax
Unrealized gain (loss) on available-for-sale securities, after-tax	(1)	(2)	0	(6)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax	1	1	1	1
Other comprehensive income (loss)	(18)	(19)	(427)	97
Comprehensive income	252	293	507	1,159
Net income attributable to noncontrolling interests	1	2	10	4
Other comprehensive income (loss) attributable to noncontrolling interests	(7)	(22)	(181)	(26)
Comprehensive income attributable to Kellanova	$ 258	$ 313	$ 678	$ 1,181

Consolidated Statement of Equit

Consolidated Statement of Equity (Unaudited) - USD ($) shares in Millions, $ in Millions	Total	Common stock	Capital in excess of par value	Retained earnings	Treasury stock	Accumulated other comprehensive income (loss)	Total Kellanova equity	Non-controlling interests
Balance (in shares) at Jan. 01, 2022		421			80
Balance at Jan. 01, 2022		$ 105	$ 1,023	$ 9,028	$ (4,715)	$ (1,721)	$ 3,720	$ 495
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Beginning Balance at Jan. 01, 2022	$ 4,215
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock repurchased	(300)				$ (300)		(300)
Common stock repurchased (in shares)					5
Net income	1,062			1,058			1,058	4
Dividends, Common Stock	(596)			(596)			(596)
Distributions to noncontrolling interest	(18)						0	(18)
Other comprehensive income (loss)	97					123	123	(26)
Stock compensation	56		56				56
Stock options exercised, issuance of other stock awards and other	222		(52)	9	$ 265		222
Stock options exercised and other (in shares)					(5)
Balance (in shares) at Oct. 01, 2022		421			80
Balance at Oct. 01, 2022		$ 105	1,027	9,499	$ (4,750)	(1,598)	4,283	455
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Oct. 01, 2022	$ 4,738
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared - per share	$ 1.75
Balance (in shares) at Jul. 02, 2022		421			81
Balance at Jul. 02, 2022		$ 105	1,008	9,387	$ (4,817)	(1,601)	4,082	476
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Beginning Balance at Jul. 02, 2022	$ 4,558
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	312			310			310	2
Dividends, Common Stock	(202)			(202)			(202)
Distributions to noncontrolling interest	(1)						0	(1)
Other comprehensive income (loss)	(19)					3	3	(22)
Stock compensation	21		21				21
Stock options exercised, issuance of other stock awards and other	69		(2)	4	$ 67		69
Stock options exercised and other (in shares)					(1)
Balance (in shares) at Oct. 01, 2022		421			80
Balance at Oct. 01, 2022		$ 105	1,027	9,499	$ (4,750)	(1,598)	4,283	455
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Oct. 01, 2022	$ 4,738
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared - per share	$ 0.59
Balance (in shares) at Dec. 31, 2022		421			79
Balance at Dec. 31, 2022	$ 3,941	$ 105	1,068	9,197	$ (4,721)	(1,708)	3,941	434
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Beginning Balance at Dec. 31, 2022	4,375
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock repurchased	(60)				$ (60)		(60)
Common stock repurchased (in shares)					1
Net income	934			924			924	10
Dividends, Common Stock	(610)			(610)			(610)
Distributions to noncontrolling interest	(24)						0	(24)
Other comprehensive income (loss)	(427)					(246)	(246)	(181)
Stock compensation	62		62				62
Stock options exercised, issuance of other stock awards and other	27		(60)	(2)	$ 89		27
Stock options exercised and other (in shares)					(1)
Balance (in shares) at Sep. 30, 2023		421			79
Balance at Sep. 30, 2023	4,038	$ 105	1,070	9,509	$ (4,692)	(1,954)	4,038	239
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Sep. 30, 2023	$ 4,277
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared - per share	$ 1.78
Balance (in shares) at Jul. 01, 2023		421			79
Balance at Jul. 01, 2023		$ 105	1,056	9,447	$ (4,700)	(1,943)	3,965	256
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Beginning Balance at Jul. 01, 2023	$ 4,221
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock repurchased	0				$ 0		0
Common stock repurchased (in shares)					0
Net income	270			269			269	1
Dividends, Common Stock	(205)			(205)			(205)
Distributions to noncontrolling interest	(11)						0	(11)
Other comprehensive income (loss)	(18)					(11)	(11)	(7)
Stock compensation	19		19				19
Stock options exercised, issuance of other stock awards and other	1		(5)	(2)	$ 8		1
Stock options exercised and other (in shares)					0
Balance (in shares) at Sep. 30, 2023		421			79
Balance at Sep. 30, 2023	4,038	$ 105	$ 1,070	$ 9,509	$ (4,692)	$ (1,954)	$ 4,038	$ 239
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Sep. 30, 2023	$ 4,277
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared - per share	$ 0.60

Consolidated Statement of Equ_2

Consolidated Statement of Equity Consolidated Statement of Equity (Unaudited) (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022
Statement of Stockholders' Equity [Abstract]
Dividends declared - per share	$ 0.60	$ 0.59	$ 1.78	$ 1.75

Consolidated Statement of Cash

Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Oct. 01, 2022
Operating activities
Net income	$ 934	$ 1,062
Adjustments to reconcile net income to operating cash flows:
Depreciation and amortization	338	351
Postretirement benefit plan expense (benefit)	(105)	(189)
Deferred income taxes	0	26
Stock compensation	62	56
Loss on Russia divestiture	113	0
Other	9	(16)
Postretirement benefit plan contributions	(13)	(17)
Changes in operating assets and liabilities, net of acquisitions:
Trade receivables	(229)	(526)
Inventories	69	(343)
Accounts payable	(32)	501
All other current assets and liabilities	254	275
Net cash provided by (used in) operating activities	1,400	1,180
Investing activities
Additions to properties	(506)	(350)
Issuance of notes receivable	(4)	0
Repayments of notes receivable	0	10
Purchases of available for sale securities	(15)	(15)
Sales of available for sale securities	15	14
Settlement of net investment hedges	29	37
Other	9	(8)
Net cash provided by (used in) investing activities	(472)	(312)
Financing activities
Net issuances (reductions) of notes payable	(115)	37
Issuances of long-term debt	896	0
Reductions of long-term debt	(227)	(33)
Net issuances of common stock	51	244
Common stock repurchases	(60)	(300)
Cash dividends	(610)	(596)
Other	(55)	(17)
Net cash provided by (used in) financing activities	(120)	(665)
Effect of exchange rate changes on cash and cash equivalents	(8)	(116)
Increase (decrease) in cash and cash equivalents	800	87
Cash and cash equivalents at beginning of period	299	286
Cash and cash equivalents at end of period	1,099	373
Supplemental cash flow disclosures of non-cash investing activities
Additions to properties included in accounts payable	$ 107	$ 75

Accounting Policies

Accounting Policies	9 Months Ended
	Sep. 30, 2023
Accounting Policies [Abstract]
Accounting Policies	Accounting policies Basis of presentation The unaudited interim financial information of Kellanova (the Company), formerly Kellogg Company, included in this report reflects all adjustments, all of which are of a normal and recurring nature, that management believes are necessary for a fair statement of the results of operations, comprehensive income, financial position, equity and cash flows for the periods presented. The accompanying unaudited financial statements also include the historical results of WK Kellogg Co, as the separation was completed on October 2, 2023. This interim information should be read in conjunction with the financial statements and accompanying footnotes within the Company’s 2022 Annual Report on Form 10-K. The balance sheet information at December 31, 2022 was derived from audited financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States. The results of operations for the quarter ended September 30, 2023 are not necessarily indicative of the results to be expected for other interim periods or the full year. Certain prior period amounts have been reclassified to conform with current period presentation. Accounts payable - Supplier Finance Programs The Company establishes competitive market-based terms with our suppliers, regardless of whether they participate in supplier finance programs, which generally range from 0 to 150 days dependent on their respective industry and geography. The Company has agreements with third parties to provide accounts payable tracking systems which facilitate participating suppliers’ ability to monitor and, if elected, sell payment obligations from the Company to designated third-party financial institutions. 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 has 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 the arrangements. However, the Company’s right to offset balances due from suppliers against payment obligations is restricted by the agreements for those payment obligations that have been sold by suppliers. The payment of these obligations by the Company is included in cash used in operating activities in the Consolidated Statement of Cash Flows. As of September 30, 2023, $1.0 billion of the Company’s outstanding payment obligations had been placed in the accounts payable tracking system. As of December 31, 2022, $1.1 billion of the Company’s outstanding payment obligations had been placed in the accounts payable tracking system. Accounting standards adopted in the period Supplier Finance Programs: Disclosure of Supplier Finance Program Obligations. In September 2022, the FASB issued an ASU to improve the disclosures of supplier finance programs. Specifically, the ASU requires disclosure of key terms of the supplier finance programs and a rollforward of the related obligations. The amendments in this ASU do not affect the recognition, measurement, or financial statement presentation of obligations covered by supplier finance programs. The ASU is effective for fiscal years, and interim periods within those years, beginning after December 15, 2022, except for the amendment on rollforward information, which is effective for fiscal years beginning after December 15, 2023. Early adoption is permitted. The Company has historically presented information regarding the nature and amount of outstanding Accounts Payable obligations confirmed into supplier finance programs within the Accounting Policies note of the financial statements. The Company adopted the ASU in the first quarter of 2023 and plans to include the rollforward information in the first quarter of 2024.

Separation transaction

Separation transaction	9 Months Ended
	Sep. 30, 2023
Discontinued Operations and Disposal Groups [Abstract]
Proposed separation transaction	Separation transaction During 2022, Kellogg Company announced its intent to separate its North American cereal business, via tax-free spin-off, resulting in two independent public companies, Kellanova (formerly Kellogg Company) and WK Kellogg Co. In preparation of the separation, the Company incurred pre-tax charges related to the separation of $56 million and $184 million for the quarter and year-to-date period ended September 30, 2023, respectively, including $3 million and $21 million recorded in COGS, respectively, and $53 million and $163 million recorded in SG&A, respectively. The Company incurred pre-tax charges of $18 million and $22 million for the quarter and year-to-date period ended October 1, 2022, respectively, all of which were recorded in SG&A. These charges were primarily related to legal and consulting costs. In connection with the separation, WK Kellogg Co entered into several agreements with Kellanova that govern the relationship of the parties following the Spin-Off including a Separa tion and Distribution Agreement, a Manufacturing and Supply Agreement, a Tax Matters Agreement, Employee Matters Agreement, Transition Services Agreement, and various lease agreements

Sale of Accounts Receivable

Sale of Accounts Receivable	9 Months Ended
	Sep. 30, 2023
Transfers and Servicing of Financial Assets [Abstract]
Sale of accounts receivable	Sale of accounts receivable The Company has a program in which a discrete group of customers are allowed to extend their payment terms in exchange for the elimination of early payment discounts (Extended Terms Program). The Company has two Receivable Sales Agreements (Monetization Programs) described below, which are intended to directly offset the impact the Extended Terms Program would have on the days-sales-outstanding (DSO) metric that is critical to the effective management of the Company's accounts receivable balance and overall working capital. The Monetization Programs sell, on a revolving basis, certain trade accounts receivable invoices to third party financial institutions. Transfers under these agreements are accounted for as sales of receivables resulting in the receivables being de-recognized from the Consolidated Balance Sheet. The Monetization Programs provide for the continuing sale of certain receivables on a revolving basis until terminated by either party; however the maximum receivables that may be sold at any time is approximately $1.1 billion. During 2023 the Company amended the agreements to increase the previous maximum receivables sold limit from approximately $920 million as of December 31, 2022. The Company has no retained interest in the receivables sold, however the Company does have collection and administrative responsibilities for the sold receivables. The Company has not recorded any servicing assets or liabilities as of September 30, 2023 and December 31, 2022 for these agreements as the fair value of these servicing arrangements as well as the fees earned were not material to the financial statements. Accounts receivable sold of $957 million and $865 million remained outstanding under these arrangements as of September 30, 2023 and December 31, 2022, respectively. The proceeds from these sales of receivables are included in cash from operating activities in the Consolidated Statement of Cash Flows in the period of sale. The recorded net loss on sale of receivables was $14 million and $40 million for the quarter and year-to-date period ended September 30, 2023, respectively and was $6 million and $11 million for the quarter and year-to-date period ended October 1, 2022. The recorded loss is included in Other income and expense (OIE). Other programs

Divestiture

Divestiture	3 Months Ended
	Sep. 30, 2023
Discontinued Operations and Disposal Groups [Abstract]
Divestiture	DivestitureRussiaIn July 2023 the Company completed the sale of its Russian business. As a result of completing the transaction, the Company derecognized net assets of approximately $65 million and recorded a non-cash loss on the transaction of approximately $113 million in OIE, primarily related to the release of historical currency translation adjustments. The business was part of the Europe reportable segment and the sale resulted in a complete exit from the Russian market. The business in Russia represented approximately 1% of consolidated Kellanova net sales.

Investment in Unconsolidated En

Investment in Unconsolidated Entities	9 Months Ended
	Sep. 30, 2023
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investments and Joint Ventures Disclosure	Investments in unconsolidated entities The Company holds a 50% ownership interest in Tolaram Africa Foods, PTE LTD (TAF), a holding company with a 49% interest in Dufil Prima Foods, Plc, a food manufacturer in West Africa. The investment in TAF is accounted for under the equity method of accounting and is evaluated for indicators of other than temporary impairment. The company records the activity of TAF on a one-month lag due to the timing required to obtain the financial statements from TAF management. During the second quarter of 2023, the Company recorded an out-of-period adjustment to correct an error in the foreign currency translation of its investment in TAF. The adjustment decreased investments in unconsolidated entities and increased other comprehensive loss by $113 million, respectively. We determined the adjustment to be immaterial to our Consolidated Financial Statements for the quarter and year to date periods ended July 1, 2023 and related prior annual and quarterly periods.

Equity

Equity	3 Months Ended
	Sep. 30, 2023
Equity [Abstract]
Equity	Equity Earnings per share Basic earnings per share is determined by dividing net income 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, restricted stock units, and certain contingently issuable performance shares. There were approximately 6 million and 4 million anti-dilutive potential common shares excluded from the calculation for the quarter and year-to-date periods ended September 30, 2023, respectively. There were approximately 2 million and 4 million anti-dilutive potential common shares excluded from the calculation for the quarter and year-to-date periods ended October 1, 2022, respectively. Please refer to the Consolidated Statement of Income for basic and diluted earnings per share for the quarter and year-to-date periods ended September 30, 2023 and October 1, 2022. Share repurchases In December 2022, the Board of Directors approved an authorization to repurchase up to $1.5 billion of our common stock through December 2025. During the year-to-date period ended September 30, 2023, the Company repurchased approximately 1 million shares of common stock for a total of $60 million . D uring the year-to-date period ended October 1, 2022, the Company repurchased approximately 5 million shares of common stock for a total of $300 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 consists of foreign currency translation adjustments, fair value adjustments associated with cash flow hedges, which are recorded in interest expense within the statement of income, upon reclassification from Accumulated Other Comprehensive Income (AOCI), adjustments for net experience gains (losses), prior service credit (costs) related to employee benefit plans and adjustments for unrealized (gains) losses on available-for-sale securities, which are recorded in other income (expense) within the statement of income, upon reclassification from AOCI. The related tax effects of these items are recorded in income tax expense within the statement of income, upon reclassification from AOCI. Accumulated other comprehensive income (loss), net of tax, as of September 30, 2023 and December 31, 2022 consisted of the following: (millions) September 30, December 31, Foreign currency translation adjustments $ (2,401) $ (2,111) Net investment hedges gain (loss) 295 282 Cash flow hedges — net deferred gain (loss) 183 150 Postretirement and postemployment benefits: Net experience gain (loss) — 2 Prior service credit (cost) (27) (27) Available-for-sale securities unrealized net gain (loss) (4) (4) Total accumulated other comprehensive income (loss) $ (1,954) $ (1,708)

Notes payable and long-term deb

Notes payable and long-term debt	9 Months Ended
	Sep. 30, 2023
Debt Disclosure [Abstract]
Notes payable and long-term debt	Notes payable and long-term debt The following table presents the components of Notes payable at September 30, 2023 and December 31, 2022: September 30, 2023 December 31, 2022 (millions) Principal Effective Principal Effective U.S. commercial paper $ — 5.44 % $ 330 4.46 % Bank borrowings 353 137 Total $ 353 $ 467 On September 29, 2023, in connection with the planned separation, WK Kellogg Co entered into a Credit Agreement (the “Credit Agreement”), consisting of a $500 million (the "Term Loan"), $250 million delayed draw term loan, and $350 million equivalent multicurrency revolving credit facility (collectively, the “Credit Facility”). The Credit Facility has an initial term of five years and matures on September 29, 2028. Interest on the loans under the Credit Agreement are to be calculated by reference to Secured Overnight Financing Rate (“SOFR”) or an alternative base rate, plus an interest rate margin equal to (x) in the case of SOFR loans, 1.75% and (y) in the case of alternate base rate loans, 0.75%, each with related step-ups and step-downs based on WK Kellogg Co’s consolidated net leverage ratio as defined by the Credit Agreement. Interest expense for the quarter and year-to-date period ended September 30, 2023 was immaterial. Under the Credit Facility, WK Kellogg Co has the right at any time, subject to customary conditions, to request incremental term loans or an increase to the revolving credit facility in an aggregate principal amount of (i) up to the greater of (x) $250 million and (y) 100% of Consolidated EBITDA, as defined in the Credit Agreement, for the preceding four fiscal quarters of WK Kellogg Co. Any such addition of or increase in loans will be subject to certain customary conditions precedent and other provisions. The Credit Facility also contains customary mandatory prepayments, including with respect to asset sale proceeds and proceeds from certain occurrences of indebtedness. WK Kellogg Co may voluntarily repay outstanding loans under the Credit Facility at any time without premium or penalty. The Term Loan amortizes in equal quarterly installments in an aggregate annual amount equal to 2.50% in year one, 5.00% in year two and three, 7.50% in year four and 10.00% in year five, of the original principal amount thereon, with the balance being payable on the date that is five years after the closing of the Credit Facility. The obligations under the Credit Facility (collectively, “Credit Facility Obligations”) are guaranteed (the “Credit Facility Guarantees”) exclusively by the existing and future direct and indirect subsidiaries of WK Kellogg Co (in such capacity, the “Credit Facility Guarantors”). The Credit Facility Obligations are expected to be secured by first priority liens on substantially all assets, subject to customary exceptions, of WK Kellogg Co and the Credit Facility Guarantors. The Credit Facility Guarantee and security interest of a Credit Facility Guarantor may be released where such Credit Facility Guarantor ceases to be a consolidated subsidiary of WK Kellogg Co pursuant to a transaction permitted under the Credit Facility. The Credit Facility contains various covenants, including, for example, those that restrict WK Kellogg Co's ability and the ability of their consolidated subsidiaries to incur certain types of indebtedness or to grant certain liens on their respective property or assets. WK Kellogg Co incurred $7 million of debt issuance costs, of which $5 million is related to the term loan and is reflected as a reduction in long-term debt, and $2 million is related to the revolving credit facility and is reflected in other assets. As of September 30, 2023, WK Kellogg Co borrowings under the Credit Facility included a $500 million term loan, of which $9 million represents the current portion, and $164 million of borrowings under the revolving credit facility was recognized as notes payable. During the first quarter of 2023, Kellanova issued $400 million of ten-year 5.25% Notes due 2033, resulting in net proceeds after discount and underwriting commissions of $396 million. The proceeds from these notes were used for general corporate purposes, including the payment of offering related fees and expenses, repayment of the $210 million 2.75% Notes when they matured on March 1, 2023, and repayment of a portion of commercial paper borrowings. The 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, as well as a change of control provision. In connection with the debt issuance, Kellanova terminated forward starting interest rate swaps with notional amounts totaling $400 million, resulting in a gain of $47 million in the first quarter of 2023. These derivatives were accounted for as cash flow hedges. The total net gain of $91 million, including those realized in prior periods, were recorded in accumulated other comprehensive income and will be amortized to interest expense over the term of the Notes. The effective interest rate on the Notes, reflecting issuance discount and hedge settlement is 3.06% at April 1, 2023.

Employee Benefits

Employee Benefits	9 Months Ended
	Sep. 30, 2023
Retirement Benefits [Abstract]
Employee Benefits	Employee benefits The Company sponsors a number of U.S. and foreign pension plans as well as other nonpension postretirement and postemployment plans to provide various benefits for its employees. These plans are described within the footnotes to the Consolidated Financial Statements included in the Company’s 2022 Annual Report on Form 10-K. Components of Company benefit plan (income) expense for the periods presented are included in the tables below. Excluding the service cost component, these amounts are included within Other income (expense) in the Consolidated Statement of Income. In connection with the planned separation transaction, the company amended and legally split certain pension and postretirement benefit plans, several remeasurements occurred during the third quarter of 2023. Pension Quarter ended Year-to-date period ended (millions) September 30, 2023 October 1, 2022 September 30, 2023 October 1, 2022 Service cost $ 6 $ 6 $ 18 $ 23 Interest cost 44 34 132 91 Expected return on plan assets (54) (57) (161) (200) Amortization of unrecognized prior service cost 2 2 7 7 Recognized net loss (gain) 10 (15) 10 (46) Total pension income $ 8 $ (30) $ 6 $ (125) For the quarter and year-to-date periods ended September 30, 2023, the Company recognized a loss of $10 million related to the remeasurement of a U.S. pension plan. The remeasurement was due to the amendment of the plan to split the pension plan in anticipation of the separation transaction . The remeasurement recognized was due primarily to a lower than expected return on plan assets. For the quarter and year-to-date periods ended October 1, 2022, the Company recognized a gain of $15 million and $46 million, respectively, related to the remeasurement of two U.S. pension plans. These remeasurements were the result of distributions that exceeded service and interest costs resulting in settlement accounting for those specific plans. The remeasurements recognized were due primarily to an increase in the discount rate relative to the previous remeasurement date partially offset by lower than expected return on plan assets. Other nonpension postretirement Quarter ended Year-to-date period ended (millions) September 30, 2023 October 1, 2022 September 30, 2023 October 1, 2022 Service cost $ 2 $ 2 $ 5 $ 8 Interest cost 11 6 31 18 Expected return on plan assets (25) (28) (73) (83) Amortization of unrecognized prior service cost (2) (2) (7) (7) Recognized net (gain) loss (67) — (67) — Total postretirement benefit income $ (81) $ (22) $ (111) $ (64) For the quarter and year-to-date periods ended September 30, 2023, the Company recognized a gain of $67 million related to the remeasurement of other postretirement benefit plans. These remeasurements were the result of separating the other postretirement benefit plans impacted by the separation transaction . The remeasurements recognized were due primarily to a higher than expected return on plan assets. Postemployment Quarter ended Year-to-date period ended (millions) September 30, 2023 October 1, 2022 September 30, 2023 October 1, 2022 Service cost $ 1 $ — $ 2 $ 2 Interest cost 1 1 2 1 Recognized net experience gain (1) — (2) (2) Total postemployment expense $ 1 $ 1 $ 2 $ 1 For the quarter and year-to-date periods ended September 30, 2023, the Company recognized a gain of $1 million and $2 million, respectively, related to the remeasurement of a U.S. postemployment benefit plan. The remeasurement was the result of separating the postemployment plan impacted by the separation transaction . The remeasurement recognized was due primarily to a higher than expected return on plan assets. In May 2023, the Company purchased a group annuity to cover pension benefit obligations of certain participants of the United Kingdom defined benefit pension plan for approximately $590 million. This transaction represents an annuity buy-in, under which the Company retains both the fair value of the annuity contract (within plan assets) and the pension benefit obligation related to these participants. Company contributions to employee benefit plans are summarized as follows: (millions) Pension Nonpension postretirement Total Quarter ended: September 30, 2023 $ — $ 3 $ 3 October 1, 2022 $ 1 $ 4 $ 5 Year-to-date period ended: September 30, 2023 $ — $ 13 $ 13 October 1, 2022 $ 2 $ 15 $ 17 Full year: Fiscal year 2023 (projected) $ 5 $ 21 $ 26 Fiscal year 2022 (actual) $ 3 $ 20 $ 23 Plan funding strategies may be modified in response to management's evaluation of tax deductibility, market conditions, and competing investment alternatives.

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2023
Income Tax Disclosure [Abstract]
Income Taxes	Income taxes The consolidated effective tax rate for the quarters ended September 30, 2023 and October 1, 2022 was 28% and 19%, respectively. The consolidated effective tax rates for the year-to-date periods ended September 30, 2023 and October 1, 2022 was 24% and 21%, respectively. The increase in effective tax rate for the quarter ended September 30, 2023 versus the prior year quarter is due to zero tax benefit recognized on the $113 million loss incurred on the divestiture of the Russia business. As of September 30, 2023, the Company classified $11 million of unrecognized tax benefits as a current tax liability. Management's estimate of reasonably possible changes in unrecognized tax benefits during the next twelve months consists of the current liability expected to be settled within one year, offset by approximately $3 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. The Company’s total gross unrecognized tax benefits as of September 30, 2023 was $34 million. Of this balance, $28 million represents the amount that, if recognized, would affect the Company’s effective income tax rate in future periods.

Derivative Instruments and Fair

Derivative Instruments and Fair Value Measurements	3 Months Ended
	Sep. 30, 2023
Derivative Instruments and Fair Value Measurements [Abstract]
Derivative Instruments and Fair Value Measurements	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 and nonderivative financial instruments 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. The Company designates derivatives and nonderivative hedging instruments 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. Derivative instruments are classified on the Consolidated Balance Sheet based on the contractual maturity of the instrument or the timing of the underlying cash flows of the instrument for derivatives with contractual maturities beyond one year. Any collateral associated with derivative instruments is classified as other assets or other current liabilities on the Consolidated Balance Sheet depending on whether the counterparty collateral is in an asset or liability position. Margin deposits related to exchange-traded commodities are recorded in accounts receivable, net on the Consolidated Balance Sheet. On the Consolidated Statement of Cash Flows, cash flows associated with derivative instruments are classified according to the nature of the underlying hedged item. Cash flows associated with collateral and margin deposits on exchange-traded commodities are classified as investing cash flows when the collateral account is in an asset position and as financing cash flows when the collateral account is in a liability position. Total notional amounts of the Company’s derivative instruments as of September 30, 2023 and December 31, 2022 were as follows: (millions) September 30, December 31, Foreign currency exchange contracts $ 2,826 $ 2,502 Cross-currency contracts 1,925 1,983 Interest rate contracts 2,251 2,657 Commodity contracts 376 230 Total $ 7,378 $ 7,372 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 September 30, 2023 and December 31, 2022, 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, cross-currency 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. Cross-currency contracts are valued based on changes in the spot rate at the time of valuation compared to the spot rate at the time of execution, as well as the change in the interest differential between the two currencies. 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 September 30, 2023 or December 31, 2022. The following table presents assets and liabilities that were measured at fair value in the Consolidated Balance Sheet on a recurring basis as of September 30, 2023 and December 31, 2022: Derivatives designated as hedging instruments September 30, 2023 December 31, 2022 (millions) Level 1 Level 2 Total Level 1 Level 2 Total Assets: Cross-currency contracts: Other current assets $ — $ 77 $ 77 $ — $ 88 $ 88 Other assets — 25 25 — 36 36 Interest rate contracts: Other current assets — 23 23 — 45 45 Other assets — — — — 25 25 Total assets $ — $ 125 $ 125 $ — $ 194 $ 194 Liabilities: Cross-currency contracts: Other current liabilities $ — $ — $ — $ — $ — $ — Other liabilities — — — — — — Interest rate contracts(a): Other current liabilities — (16) (16) — — — Other liabilities — (62) (62) — (86) (86) Total liabilities $ — $ (78) $ (78) $ — $ (86) $ (86) (a) The fair value of the related hedged portion of the Company's long-term debt, a level 2 liability, was $1.0 billion as of September 30, 2023 and $1.1 billion as of December 31, 2022. Derivatives not designated as hedging instruments September 30, 2023 December 31, 2022 (millions) Level 1 Level 2 Total Level 1 Level 2 Total Assets: Foreign currency exchange contracts: Other current assets $ — $ 56 $ 56 $ — $ 74 $ 74 Other assets — 7 7 — 14 14 Interest rate contracts: Other current assets — 9 9 — 4 4 Other assets — 11 11 — 14 14 Commodity contracts: Other current assets 4 — 4 4 — 4 Total assets $ 4 $ 83 $ 87 $ 4 $ 106 $ 110 Liabilities: Foreign currency exchange contracts: Other current liabilities $ — $ (49) $ (49) $ — $ (50) $ (50) Other liabilities — (3) (3) — (9) (9) Interest rate contracts: Other current liabilities — (11) (11) — (7) (7) Other liabilities — (14) (14) — (18) (18) Commodity contracts: Other current liabilities (12) — (12) (2) — (2) Total liabilities $ (12) $ (77) $ (89) $ (2) $ (84) $ (86) The Company has designated its outstanding foreign currency denominated 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, including current and long-term, was approximately $1.6 billion as of September 30, 2023 and December 31, 2022, respectively. The following amounts were recorded on the Consolidated Balance Sheet related to cumulative basis adjustments for existing fair value hedges as of September 30, 2023 and December 31, 2022. (millions) Line Item in the Consolidated Balance Sheet in which the hedged item is included Carrying amount of the hedged liabilities Cumulative amount of fair value hedging adjustment included in the carrying amount of the hedged liabilities (a) September 30, December 31, September 30, December 31, Interest rate contracts Current maturities of long-term debt $ 897 $ 483 $ 3 $ (3) Interest rate contracts Long-term debt $ 1,623 $ 2,250 $ (59) $ (74) (a) The fair value adjustment related to current maturities of long-term debt includes $3 million and ($3) million from discontinued hedging relationships as of September 30, 2023 and December 31, 2022, respectively. The fair value adjustment related to long-term debt includes $3 million and $13 million from discontinued hedging relationships as of September 30, 2023 and December 31, 2022, respectively. 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 September 30, 2023 and December 31, 2022 would be adjusted as detailed in the following table: As of September 30, 2023: Gross Amounts Not Offset in the Amounts Financial Cash Collateral Net Total asset derivatives $ 212 $ (138) $ 25 $ 99 Total liability derivatives $ (167) $ 138 $ 29 $ — As of December 31, 2022: Gross Amounts Not Offset in the Amounts Financial Cash Collateral Net Total asset derivatives $ 304 $ (153) $ (33) $ 118 Total liability derivatives $ (172) $ 153 $ 19 $ — During the quarter and year-to-date periods ended September 30, 2023, the Company settled certain interest rate contracts resulting in a net realized gain of approximately $14 million and $85 million, respectively. During the quarter and year-to-date periods ended October 1, 2022, the Company settled certain interest rate contracts resulting in a net realized gain of approximately $83 million and $165 million, respectively. These derivatives were accounted for as cash flow hedges and the related net gains were recorded in accumulated other comprehensive income and will be amortized to interest expense over the term of the related forecasted fixed rate debt, once issued. During the quarter ended October 1, 2022, the Company recognized an $18 million gain related to a portion of certain forward-starting interest rate swaps no longer designated as cash flow hedges due to changes in forecasted debt issuance. During the quarter and year-to-date periods ended September 30, 2023, the Company settled certain cross currency swaps resulting in a net realized gain of approximately $12 million and $29 million, respectively. During the year-to-date period ended October 1, 2022, the Company settled certain cross currency swaps resulting in a net realized gain of approximately $37 million. T hese cross currency swaps were accounted for as net investment hedges and the related net gain was recorded in accumulated other comprehensive income. The effect of derivative instruments on the Consolidated Statements of Income and Comprehensive Income for the quarters ended September 30, 2023 and October 1, 2022 was as follows: Derivatives and non-derivatives in net investment hedging relationships (millions) Gain (loss) Gain (loss) excluded from assessment of hedge effectiveness Location of gain (loss) in income of excluded component September 30, October 1, September 30, October 1, Foreign currency denominated long-term debt $ 44 $ 137 $ — $ — Cross-currency contracts 67 123 14 11 Interest expense Total $ 111 $ 260 $ 14 $ 11 Derivatives not designated as hedging instruments (millions) Location of gain Gain (loss) September 30, October 1, Foreign currency exchange contracts COGS $ 10 $ 14 Foreign currency exchange contracts Other income (expense), net (1) (9) Foreign currency exchange contracts SG&A 1 3 Interest rate contracts Interest expense — 1 Commodity contracts COGS (22) (1) Total $ (12) $ 8 The effect of derivative instruments on the Consolidated Statements of Income and Comprehensive Income for the year-to-date periods ended September 30, 2023 and October 1, 2022 was as follows: Derivatives and non-derivatives in net investment hedging relationships (millions) Gain (loss) Gain (loss) excluded from assessment of hedge effectiveness Location of gain (loss) in income of excluded component September 30, October 1, September 30, October 1, Foreign currency denominated long-term debt $ 10 $ 339 $ — $ — Cross-currency contracts 7 277 42 28 Interest expense Total $ 17 $ 616 $ 42 $ 28 Derivatives not designated as hedging instruments (millions) Location of gain Gain (loss) September 30, October 1, Foreign currency exchange contracts COGS $ (4) $ 34 Foreign currency exchange contracts Other income (expense), net (11) (18) Foreign currency exchange contracts SGA (4) 8 Interest rate contracts Interest expense — 3 Commodity contracts COGS (85) 33 Total $ (104) $ 60 The effect of fair value and cash flow hedge accounting on the Consolidated Income Statement for the quarters ended September 30, 2023 and October 1, 2022: September 30, 2023 October 1, 2022 (millions) Interest Expense Interest Expense Total amounts of income and expense line items presented in the Consolidated Income Statement in which the effects of fair value or cash flow hedges are recorded $ 83 $ 39 Gain (loss) on fair value hedging relationships: Interest contracts: Hedged items (1) 35 Derivatives designated as hedging instruments 2 (34) Gain (loss) on cash flow hedging relationships: Interest contracts: Amount of gain (loss) reclassified from AOCI into income (2) 14 The effect of fair value and cash flow hedge accounting on the Consolidated Income Statement for the year-to-date periods ended September 30, 2023 and October 1, 2022: September 30, 2023 October 1, 2022 (millions) Interest Expense Interest Expense Total amounts of income and expense line items presented in the Consolidated Income Statement in which the effects of fair value or cash flow hedges are recorded $ 245 $ 149 Gain (loss) on fair value hedging relationships: Interest contracts: Hedged items (5) 89 Derivatives designated as hedging instruments 8 (85) Gain (loss) on cash flow hedging relationships: Interest contracts: Amount of gain (loss) reclassified from AOCI into income (7) 6 During the next 12 months, the Company expects $10 million of net deferred losses reported in AOCI at September 30, 2023 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 when the value exceeds certain thresholds with each counterparty. In addition, certain derivative instruments contain provisions that would be triggered in the event the Company defaults on its debt agreements. The collateral posting requirements as of September 30, 2023, triggered by threshold contingent features was not material. Other fair value measurements Available for sale securities September 30, 2023 December 31, 2022 Unrealized Unrealized (millions) Cost Gain (Loss) Market Value Cost Gain (Loss) Market Value Corporate bonds $ 50 $ (4) $ 46 $ 52 $ (5) $ 47 During the year-to-date period ended September 30, 2023, the Company sold approximately $15 million of investments in level 2 corporate bonds. The resulting loss was approximately $1 million and recorded in Other income and (expense). Also during the year-to-date period ended September 30, 2023, the Company purchased approximately $15 million in level 2 corporate bonds. During the year-to-date period ended October 1, 2022, the Company sold level 2 corporate bonds for approximately $14 million. The resulting loss approximately $1 million and recorded in Other income and (expense). Also during the year-to-date period ended October 1, 2022, the Company purchased approximately $15 million in level 2 corporate bonds. The market values of the Company's investments in level 2 corporate bonds are based on matrices or models from pricing vendors. Unrealized gains and losses are included in the Consolidated Statement of Comprehensive Income. Additionally, these investments are recorded within Other current assets and Other assets on the Consolidated Balance Sheet, based on the maturity of the individual security. The maturity dates of the securities range from 2024 to 2036. The Company reviews its investment portfolio for any unrealized losses that would be deemed other-than-temporary and requires the recognition of an impairment loss in earnings. If the cost of an investment exceeds its fair value, the Company evaluates, among other factors, general market conditions, the duration and extent to which the fair value is less than its cost, the Company's intent to hold the investment, and whether it is more likely than not that the Company will be required to sell the investment before recovery of the cost basis. The Company also considers the type of security, related industry and sector performance, and published investment ratings. Once a decline in fair value is determined to be other-than-temporary, an impairment charge is recorded and a new cost basis in the investment is established. If conditions within individual markets, industry segments, or macro-economic environments deteriorate, the Company could incur future impairments. Equity investments We hold equity investments in certain companies that we do not have the ability to exercise significant influence. Equity investments without a readily determinable fair value are recorded at original cost. Investments with a readily determinable fair value, which are level 2 investments, are measured at fair value based on observable market price changes, with gains and losses recorded through net earnings. Equity investments were approximately $40 million as of September 30, 2023 and December 31, 2022. Additionally, these investments were recorded within Other noncurrent assets on the Consolidated Balance Sheet. Financial instruments The carrying values of the Company’s short-term items, including cash, cash equivalents, accounts receivable, accounts payable, notes payable and current maturities of long-term debt approximate fair value. The fair value of the Company’s long-term debt, which are level 2 liabilities, is calculated based on broker quotes. The fair value and carrying value of the Company's long-term debt was $5.2 billion and $5.5 billion, respectively, as of September 30, 2023. The fair value and carrying value of the Company's long-term debt was $5.1 billion and $5.3 billion, respectively, as of December 31, 2022. Counterparty credit risk concentration and collateral requirements 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. Certain counterparties represent a concentration of credit risk to the Company. If those counterparties fail to perform according to the terms of derivative contracts, this would result in a loss to the Company of approximately $43 million, net of collateral already received from those counterparties, as of September 30, 2023. 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. In addition, the Company is required to maintain cash margin accounts in connection with its open positions for exchange-traded commodity derivative instruments executed with the counterparty that are subject to enforceable netting agreements. As of September 30, 2023, the Company posted $22 million in margin deposits for exchange-traded commodity derivative instruments, which was reflected as an increase in accounts receivable, net on the Consolidated Balance Sheet. 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.

Reportable Segments

Reportable Segments	9 Months Ended
	Sep. 30, 2023
Segment Reporting [Abstract]
Reportable Segments	Reportable segments Kellanova is a leading producer of snacks, cereal, and frozen foods. It is the second largest producer of crackers, and a leading producer of savory snacks and cereal. Additional product offerings include toaster pastries, cereal bars, veggie foods and noodles. Kellanova products are manufactured and marketed globally. Principal markets for these products include the United States, United Kingdom, Nigeria, Canada, Mexico, and Australia. The Company manages its operations through four operating segments that are based on geographic location – North America which includes U.S. businesses and Canada; Europe which consists of European countries; Latin America which consists of Central and South America and includes Mexico; and AMEA (Asia Middle East Africa) which consists of Africa, Middle East, Australia and other Asian and Pacific markets. These operating segments also represent our reportable segments. Corporate includes corporate administration and initiatives as well as share-based compensation. 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. Reportable segment results were as follows: Quarter ended Year-to-date period ended (millions) September 30, October 1, September 30, October 1, Net sales North America $ 2,329 $ 2,338 $ 7,042 $ 6,696 Europe 616 562 1,888 1,749 Latin America 338 282 966 826 AMEA 657 767 2,139 2,217 Total Reportable Segments 3,940 3,949 12,035 11,488 Corporate (1) (3) (2) (6) Consolidated $ 3,939 $ 3,946 $ 12,033 $ 11,482 Operating profit North America $ 312 $ 322 $ 1,048 $ 1,043 Europe 97 75 293 280 Latin America 42 29 105 82 AMEA 63 64 204 192 Total Reportable Segments 514 490 1,650 1,597 Corporate (32) (122) (219) (297) Consolidated $ 482 $ 368 $ 1,431 $ 1,300 Supplemental product information is provided below for net sales to external customers: Quarter ended Year-to-date period ended (millions) September 30, October 1, September 30, October 1, Snacks $ 2,040 $ 1,943 $ 6,114 $ 5,635 Cereal 1,368 1,355 4,155 3,978 Frozen 281 281 838 829 Noodles and other 250 367 926 1,040 Consolidated $ 3,939 $ 3,946 $ 12,033 $ 11,482

Supplemental Financial Statemen

Supplemental Financial Statement Data	9 Months Ended
	Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Supplemental Balance Sheet Disclosures	Supplemental financial statement data Consolidated Balance Sheet (millions) September 30, 2023 (unaudited) December 31, 2022 Trade receivables $ 1,657 $ 1,449 Allowance for credit losses (16) (13) Refundable income taxes 23 82 Other receivables 212 218 Accounts receivable, net $ 1,876 $ 1,736 Raw materials and supplies $ 399 $ 426 Finished goods and materials in process 1,233 1,342 Inventories $ 1,632 $ 1,768 Intangible assets not subject to amortization $ 1,854 $ 1,969 Intangible assets subject to amortization, net 211 327 Other intangibles, net $ 2,065 $ 2,296

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022
Pay vs Performance Disclosure
Net Income (Loss) Attributable to Parent	$ 269	$ 310	$ 924	$ 1,058

Insider Trading Arrangements

Insider Trading Arrangements	9 Months Ended
	Sep. 30, 2023
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Accounting Policies (Policies)

Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2023
Accounting Policies [Abstract]
Basis of presentation	Basis of presentation The unaudited interim financial information of Kellanova (the Company), formerly Kellogg Company, included in this report reflects all adjustments, all of which are of a normal and recurring nature, that management believes are necessary for a fair statement of the results of operations, comprehensive income, financial position, equity and cash flows for the periods presented. The accompanying unaudited financial statements also include the historical results of WK Kellogg Co, as the separation was completed on October 2, 2023. This interim information should be read in conjunction with the financial statements and accompanying footnotes within the Company’s 2022 Annual Report on Form 10-K. The balance sheet information at December 31, 2022 was derived from audited financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States. The results of operations for the quarter ended September 30, 2023 are not necessarily indicative of the results to be expected for other interim periods or the full year. Certain prior period amounts have been reclassified to conform with current period presentation.
Accounts payable - Supplier Finance Programs	Accounts payable - Supplier Finance Programs The Company establishes competitive market-based terms with our suppliers, regardless of whether they participate in supplier finance programs, which generally range from 0 to 150 days dependent on their respective industry and geography.
Accounting standards adopted in the period	Accounting standards adopted in the period Supplier Finance Programs: Disclosure of Supplier Finance Program Obligations. In September 2022, the FASB issued an ASU to improve the disclosures of supplier finance programs. Specifically, the ASU requires disclosure of key terms of the supplier finance programs and a rollforward of the related obligations. The amendments in this ASU do not affect the recognition, measurement, or financial statement presentation of obligations covered by supplier finance programs. The ASU is effective for fiscal years, and interim periods within those years, beginning after December 15, 2022, except for the amendment on rollforward information, which is effective for fiscal years beginning after December 15, 2023. Early adoption is permitted. The Company has historically presented information regarding the nature and amount of outstanding Accounts Payable obligations confirmed into supplier finance programs within the Accounting Policies note of the financial statements. The Company adopted the ASU in the first quarter of 2023 and plans to include the rollforward information in the first quarter of 2024.

Equity (Tables)

Equity (Tables)	9 Months Ended
	Sep. 30, 2023
Equity [Abstract]
Summary of Accumulated Other Comprehensive Income (Loss)	Accumulated other comprehensive income (loss), net of tax, as of September 30, 2023 and December 31, 2022 consisted of the following: (millions) September 30, December 31, Foreign currency translation adjustments $ (2,401) $ (2,111) Net investment hedges gain (loss) 295 282 Cash flow hedges — net deferred gain (loss) 183 150 Postretirement and postemployment benefits: Net experience gain (loss) — 2 Prior service credit (cost) (27) (27) Available-for-sale securities unrealized net gain (loss) (4) (4) Total accumulated other comprehensive income (loss) $ (1,954) $ (1,708)

Notes payable and long-term d_2

Notes payable and long-term debt (Tables)	9 Months Ended
	Sep. 30, 2023
Debt Disclosure [Abstract]
Components of Notes Payable	The following table presents the components of Notes payable at September 30, 2023 and December 31, 2022: September 30, 2023 December 31, 2022 (millions) Principal Effective Principal Effective U.S. commercial paper $ — 5.44 % $ 330 4.46 % Bank borrowings 353 137 Total $ 353 $ 467

Employee Benefits (Tables)

Employee Benefits (Tables)	9 Months Ended
	Sep. 30, 2023
Retirement Benefits [Abstract]
Components of Plan Benefit Expense	Pension Quarter ended Year-to-date period ended (millions) September 30, 2023 October 1, 2022 September 30, 2023 October 1, 2022 Service cost $ 6 $ 6 $ 18 $ 23 Interest cost 44 34 132 91 Expected return on plan assets (54) (57) (161) (200) Amortization of unrecognized prior service cost 2 2 7 7 Recognized net loss (gain) 10 (15) 10 (46) Total pension income $ 8 $ (30) $ 6 $ (125) For the quarter and year-to-date periods ended September 30, 2023, the Company recognized a loss of $10 million related to the remeasurement of a U.S. pension plan. The remeasurement was due to the amendment of the plan to split the pension plan in anticipation of the separation transaction . The remeasurement recognized was due primarily to a lower than expected return on plan assets. For the quarter and year-to-date periods ended October 1, 2022, the Company recognized a gain of $15 million and $46 million, respectively, related to the remeasurement of two U.S. pension plans. These remeasurements were the result of distributions that exceeded service and interest costs resulting in settlement accounting for those specific plans. The remeasurements recognized were due primarily to an increase in the discount rate relative to the previous remeasurement date partially offset by lower than expected return on plan assets. Other nonpension postretirement Quarter ended Year-to-date period ended (millions) September 30, 2023 October 1, 2022 September 30, 2023 October 1, 2022 Service cost $ 2 $ 2 $ 5 $ 8 Interest cost 11 6 31 18 Expected return on plan assets (25) (28) (73) (83) Amortization of unrecognized prior service cost (2) (2) (7) (7) Recognized net (gain) loss (67) — (67) — Total postretirement benefit income $ (81) $ (22) $ (111) $ (64) For the quarter and year-to-date periods ended September 30, 2023, the Company recognized a gain of $67 million related to the remeasurement of other postretirement benefit plans. These remeasurements were the result of separating the other postretirement benefit plans impacted by the separation transaction . The remeasurements recognized were due primarily to a higher than expected return on plan assets. Postemployment Quarter ended Year-to-date period ended (millions) September 30, 2023 October 1, 2022 September 30, 2023 October 1, 2022 Service cost $ 1 $ — $ 2 $ 2 Interest cost 1 1 2 1 Recognized net experience gain (1) — (2) (2) Total postemployment expense $ 1 $ 1 $ 2 $ 1 For the quarter and year-to-date periods ended September 30, 2023, the Company recognized a gain of $1 million and $2 million, respectively, related to the remeasurement of a U.S. postemployment benefit plan. The remeasurement was the result of separating the postemployment plan impacted by the separation transaction . The remeasurement recognized was due primarily to a higher than expected return on plan assets.
Contributions to Employee Benefit Plans	Company contributions to employee benefit plans are summarized as follows: (millions) Pension Nonpension postretirement Total Quarter ended: September 30, 2023 $ — $ 3 $ 3 October 1, 2022 $ 1 $ 4 $ 5 Year-to-date period ended: September 30, 2023 $ — $ 13 $ 13 October 1, 2022 $ 2 $ 15 $ 17 Full year: Fiscal year 2023 (projected) $ 5 $ 21 $ 26 Fiscal year 2022 (actual) $ 3 $ 20 $ 23

Derivative Instruments and Fa_2

Derivative Instruments and Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2023
Derivative Instruments and Fair Value Measurements [Abstract]
Schedule of Total Notional Amounts of Derivative Instruments	Total notional amounts of the Company’s derivative instruments as of September 30, 2023 and December 31, 2022 were as follows: (millions) September 30, December 31, Foreign currency exchange contracts $ 2,826 $ 2,502 Cross-currency contracts 1,925 1,983 Interest rate contracts 2,251 2,657 Commodity contracts 376 230 Total $ 7,378 $ 7,372
Schedule of Fair Value, Assets and Liabilities Measured on 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 September 30, 2023 and December 31, 2022: Derivatives designated as hedging instruments September 30, 2023 December 31, 2022 (millions) Level 1 Level 2 Total Level 1 Level 2 Total Assets: Cross-currency contracts: Other current assets $ — $ 77 $ 77 $ — $ 88 $ 88 Other assets — 25 25 — 36 36 Interest rate contracts: Other current assets — 23 23 — 45 45 Other assets — — — — 25 25 Total assets $ — $ 125 $ 125 $ — $ 194 $ 194 Liabilities: Cross-currency contracts: Other current liabilities $ — $ — $ — $ — $ — $ — Other liabilities — — — — — — Interest rate contracts(a): Other current liabilities — (16) (16) — — — Other liabilities — (62) (62) — (86) (86) Total liabilities $ — $ (78) $ (78) $ — $ (86) $ (86) (a) The fair value of the related hedged portion of the Company's long-term debt, a level 2 liability, was $1.0 billion as of September 30, 2023 and $1.1 billion as of December 31, 2022. Derivatives not designated as hedging instruments September 30, 2023 December 31, 2022 (millions) Level 1 Level 2 Total Level 1 Level 2 Total Assets: Foreign currency exchange contracts: Other current assets $ — $ 56 $ 56 $ — $ 74 $ 74 Other assets — 7 7 — 14 14 Interest rate contracts: Other current assets — 9 9 — 4 4 Other assets — 11 11 — 14 14 Commodity contracts: Other current assets 4 — 4 4 — 4 Total assets $ 4 $ 83 $ 87 $ 4 $ 106 $ 110 Liabilities: Foreign currency exchange contracts: Other current liabilities $ — $ (49) $ (49) $ — $ (50) $ (50) Other liabilities — (3) (3) — (9) (9) Interest rate contracts: Other current liabilities — (11) (11) — (7) (7) Other liabilities — (14) (14) — (18) (18) Commodity contracts: Other current liabilities (12) — (12) (2) — (2) Total liabilities $ (12) $ (77) $ (89) $ (2) $ (84) $ (86)
Schedule of Derivative Instruments in Statement of Financial Position Fair Value	The following amounts were recorded on the Consolidated Balance Sheet related to cumulative basis adjustments for existing fair value hedges as of September 30, 2023 and December 31, 2022. (millions) Line Item in the Consolidated Balance Sheet in which the hedged item is included Carrying amount of the hedged liabilities Cumulative amount of fair value hedging adjustment included in the carrying amount of the hedged liabilities (a) September 30, December 31, September 30, December 31, Interest rate contracts Current maturities of long-term debt $ 897 $ 483 $ 3 $ (3) Interest rate contracts Long-term debt $ 1,623 $ 2,250 $ (59) $ (74) (a) The fair value adjustment related to current maturities of long-term debt includes $3 million and ($3) million from discontinued hedging relationships as of September 30, 2023 and December 31, 2022, respectively. The fair value adjustment related to long-term debt includes $3 million and $13 million from discontinued hedging relationships as of September 30, 2023 and December 31, 2022, respectively.
Schedule of Offsetting Assets	As of September 30, 2023: Gross Amounts Not Offset in the Amounts Financial Cash Collateral Net Total asset derivatives $ 212 $ (138) $ 25 $ 99 Total liability derivatives $ (167) $ 138 $ 29 $ — As of December 31, 2022: Gross Amounts Not Offset in the Amounts Financial Cash Collateral Net Total asset derivatives $ 304 $ (153) $ (33) $ 118 Total liability derivatives $ (172) $ 153 $ 19 $ —
Schedule of Offsetting Liabilities	As of September 30, 2023: Gross Amounts Not Offset in the Amounts Financial Cash Collateral Net Total asset derivatives $ 212 $ (138) $ 25 $ 99 Total liability derivatives $ (167) $ 138 $ 29 $ — As of December 31, 2022: Gross Amounts Not Offset in the Amounts Financial Cash Collateral Net Total asset derivatives $ 304 $ (153) $ (33) $ 118 Total liability derivatives $ (172) $ 153 $ 19 $ —
Schedule of the Effect of Derivative Instruments on the Consolidated Statements of Income and Comprehensive Income	The effect of derivative instruments on the Consolidated Statements of Income and Comprehensive Income for the quarters ended September 30, 2023 and October 1, 2022 was as follows: Derivatives and non-derivatives in net investment hedging relationships (millions) Gain (loss) Gain (loss) excluded from assessment of hedge effectiveness Location of gain (loss) in income of excluded component September 30, October 1, September 30, October 1, Foreign currency denominated long-term debt $ 44 $ 137 $ — $ — Cross-currency contracts 67 123 14 11 Interest expense Total $ 111 $ 260 $ 14 $ 11 Derivatives not designated as hedging instruments (millions) Location of gain Gain (loss) September 30, October 1, Foreign currency exchange contracts COGS $ 10 $ 14 Foreign currency exchange contracts Other income (expense), net (1) (9) Foreign currency exchange contracts SG&A 1 3 Interest rate contracts Interest expense — 1 Commodity contracts COGS (22) (1) Total $ (12) $ 8 The effect of derivative instruments on the Consolidated Statements of Income and Comprehensive Income for the year-to-date periods ended September 30, 2023 and October 1, 2022 was as follows: Derivatives and non-derivatives in net investment hedging relationships (millions) Gain (loss) Gain (loss) excluded from assessment of hedge effectiveness Location of gain (loss) in income of excluded component September 30, October 1, September 30, October 1, Foreign currency denominated long-term debt $ 10 $ 339 $ — $ — Cross-currency contracts 7 277 42 28 Interest expense Total $ 17 $ 616 $ 42 $ 28 Derivatives not designated as hedging instruments (millions) Location of gain Gain (loss) September 30, October 1, Foreign currency exchange contracts COGS $ (4) $ 34 Foreign currency exchange contracts Other income (expense), net (11) (18) Foreign currency exchange contracts SGA (4) 8 Interest rate contracts Interest expense — 3 Commodity contracts COGS (85) 33 Total $ (104) $ 60 The effect of fair value and cash flow hedge accounting on the Consolidated Income Statement for the quarters ended September 30, 2023 and October 1, 2022: September 30, 2023 October 1, 2022 (millions) Interest Expense Interest Expense Total amounts of income and expense line items presented in the Consolidated Income Statement in which the effects of fair value or cash flow hedges are recorded $ 83 $ 39 Gain (loss) on fair value hedging relationships: Interest contracts: Hedged items (1) 35 Derivatives designated as hedging instruments 2 (34) Gain (loss) on cash flow hedging relationships: Interest contracts: Amount of gain (loss) reclassified from AOCI into income (2) 14 The effect of fair value and cash flow hedge accounting on the Consolidated Income Statement for the year-to-date periods ended September 30, 2023 and October 1, 2022: September 30, 2023 October 1, 2022 (millions) Interest Expense Interest Expense Total amounts of income and expense line items presented in the Consolidated Income Statement in which the effects of fair value or cash flow hedges are recorded $ 245 $ 149 Gain (loss) on fair value hedging relationships: Interest contracts: Hedged items (5) 89 Derivatives designated as hedging instruments 8 (85) Gain (loss) on cash flow hedging relationships: Interest contracts: Amount of gain (loss) reclassified from AOCI into income (7) 6
Schedule of Available-for-sale Securities Reconciliation	September 30, 2023 December 31, 2022 Unrealized Unrealized (millions) Cost Gain (Loss) Market Value Cost Gain (Loss) Market Value Corporate bonds $ 50 $ (4) $ 46 $ 52 $ (5) $ 47

Reportable Segments (Tables)

Reportable Segments (Tables)	9 Months Ended
	Sep. 30, 2023
Segment Reporting [Abstract]
Schedule of Reportable Segment Information	Reportable segment results were as follows: Quarter ended Year-to-date period ended (millions) September 30, October 1, September 30, October 1, Net sales North America $ 2,329 $ 2,338 $ 7,042 $ 6,696 Europe 616 562 1,888 1,749 Latin America 338 282 966 826 AMEA 657 767 2,139 2,217 Total Reportable Segments 3,940 3,949 12,035 11,488 Corporate (1) (3) (2) (6) Consolidated $ 3,939 $ 3,946 $ 12,033 $ 11,482 Operating profit North America $ 312 $ 322 $ 1,048 $ 1,043 Europe 97 75 293 280 Latin America 42 29 105 82 AMEA 63 64 204 192 Total Reportable Segments 514 490 1,650 1,597 Corporate (32) (122) (219) (297) Consolidated $ 482 $ 368 $ 1,431 $ 1,300
Revenue from External Customers by Products and Services	Supplemental product information is provided below for net sales to external customers: Quarter ended Year-to-date period ended (millions) September 30, October 1, September 30, October 1, Snacks $ 2,040 $ 1,943 $ 6,114 $ 5,635 Cereal 1,368 1,355 4,155 3,978 Frozen 281 281 838 829 Noodles and other 250 367 926 1,040 Consolidated $ 3,939 $ 3,946 $ 12,033 $ 11,482

Supplemental Financial Statem_2

Supplemental Financial Statement Data (Tables)	9 Months Ended
	Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Supplemental Financial Data Consolidated Balance Sheet [Table Text Block]	Consolidated Balance Sheet (millions) September 30, 2023 (unaudited) December 31, 2022 Trade receivables $ 1,657 $ 1,449 Allowance for credit losses (16) (13) Refundable income taxes 23 82 Other receivables 212 218 Accounts receivable, net $ 1,876 $ 1,736 Raw materials and supplies $ 399 $ 426 Finished goods and materials in process 1,233 1,342 Inventories $ 1,632 $ 1,768 Intangible assets not subject to amortization $ 1,854 $ 1,969 Intangible assets subject to amortization, net 211 327 Other intangibles, net $ 2,065 $ 2,296

Accounting Policies - Narrative

Accounting Policies - Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Accounting Policies [Abstract]
Obligations placed in accounts payable tracking system	$ 1,000	$ 1,100
Minimum [Member]
Supplier finance program general payment timing, period	0 days
Maximum [Member]
Supplier finance program general payment timing, period	150 days

Separation transaction (Details

Separation transaction (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Separation transaction related costs	$ 56		$ 184
COGS
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Separation transaction related costs	3		21
Selling, General and Administrative Expenses
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Separation transaction related costs	$ 53	$ 18	$ 163	$ 22

Sale of Accounts Receivable - N

Sale of Accounts Receivable - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022	Dec. 31, 2022
Monetization Program | Other income (expense)
Transfer of Financial Assets Accounted for as Sales [Line Items]
Gain (Loss) on Sale of Accounts Receivable	$ (14)	$ (6)	$ (40)	$ (11)
Monetization Program | Maximum [Member]
Transfer of Financial Assets Accounted for as Sales [Line Items]
Transfers of Accounts Receivable Agreements	1,100		1,100		$ 920
Monetization Program | Sold And Outstanding
Transfer of Financial Assets Accounted for as Sales [Line Items]
Transfer of Financial Assets Accounted for as Sales, Amount Derecognized	957		957		865
Kellogg Foreign Subsidiaries Other Program
Transfer of Financial Assets Accounted for as Sales [Line Items]
Transfers of Accounts Receivable Agreements	$ 40		$ 40		$ 31

Divestiture - Narrative (Detail

Divestiture - Narrative (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended	9 Months Ended
	Jul. 29, 2023	Sep. 30, 2023	Sep. 30, 2023	Oct. 01, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on Russia divestiture - other income/(expense)			$ 113	$ 0
RUSSIAN FEDERATION | Europe
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales as a percentage of consolidated net sales		1%
Net book value	$ 65
Loss on Russia divestiture - other income/(expense)	$ (113)	$ (113)

Investment in Unconsolidated _2

Investment in Unconsolidated Entities - Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2023	Jul. 01, 2023	Dec. 31, 2022
Schedule of Equity Method Investments [Line Items]
Foreign currency translation adjustments	$ (2,401)		$ (2,111)
Tolaram Africa Foods Pte Ltd [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	50%
Foreign currency translation adjustments	$ 129	$ 113
TAF Investment in Affiliated Food Manufacturer
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	49%

Equity - Narrative (Details)

Equity - Narrative (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022	Dec. 31, 2022
Equity, Class of Treasury Stock [Line Items]
Anti-dilutive potential common shares excluded from reconciliation	6	2	4	4
Common stock repurchased	$ 0		$ 60	$ 300
February 2020 Share Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Common stock repurchased (in shares)				5
Common stock repurchased				$ 300
December 2022 Share Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount					$ 1,500
Common stock repurchased (in shares)	1		1
Common stock repurchased			$ 60

Equity - Summary of Accumulated

Equity - Summary of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	$ (2,401)	$ (2,111)
Net investment hedges gain (loss)	295	282
Cash flow hedges — net deferred gain (loss)	183	150
Postretirement and postemployment benefits:
Net experience gain (loss)	0	2
Prior service credit (cost)	(27)	(27)
Available-for-sale securities unrealized net gain (loss)	(4)	(4)
Total accumulated other comprehensive income (loss)	$ (1,954)	$ (1,708)

Notes payable and long-term d_3

Notes payable and long-term debt - Narrative (Details) - USD ($) $ in Millions		3 Months Ended			9 Months Ended
	Mar. 01, 2023	Sep. 30, 2023	Apr. 01, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022	Dec. 31, 2022
Debt Instrument [Line Items]
Notional amount of derivative		$ 7,378			$ 7,378		$ 7,372
Unrealized gain (loss) on cash flow hedges, pre-tax		40		$ 62	37	$ 213
Notes Payable, Current		353			353		467
Repayments of Long-term Debt					227	33
Long-term debt		5,530			5,530		5,317
Interest Expense, Debt		83		39	245	149
Current maturities of long-term debt		1,193			$ 1,193		$ 780
WK Kellogg Co
Debt Instrument [Line Items]
Line of Credit Facility, Borrowing Capacity, Description					Under the Credit Facility, WK Kellogg Co has the right at any time, subject to customary conditions, to request incremental term loans or an increase to the revolving credit facility in an aggregate principal amount of (i) up to the greater of (x) $250 million and (y) 100% of Consolidated EBITDA, as defined in the Credit Agreement, for the preceding four fiscal quarters of WK Kellogg Co. Any such addition of or increase in loans will be subject to certain customary conditions precedent and other provisions.
Line of Credit | WK Kellogg Co
Debt Instrument [Line Items]
Long-Term Line of Credit		164			$ 164
Debt Issuance Costs, Gross		7			7
Current maturities of long-term debt		9			9
Cash Flow Hedging | Interest expense
Debt Instrument [Line Items]
Unrealized gain (loss) on cash flow hedges, pre-tax		$ 14		$ 83	$ 85	$ 165
Debt Instrument, Redemption, Period One
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed		2.50%
Debt Instrument, Redemption, Period Two | Line of Credit | WK Kellogg Co
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed		5%
Debt Instrument, Redemption, Period Three | Line of Credit | WK Kellogg Co
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed		5%
Debt Instrument, Redemption, Period Four | Line of Credit | WK Kellogg Co
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed		7.50%
Debt Instrument, Redemption, Period Five | Line of Credit | WK Kellogg Co
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed		10%
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Line of Credit | WK Kellogg Co
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		1.75%			1.75%
Base Rate | Line of Credit | WK Kellogg Co
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		0.75%			0.75%
5.25% 10-year U.S. Dollar Notes Due 2033
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 400
Debt Instrument, Interest Rate, Stated Percentage	5.25%
Net proceeds after discount and underwriting commissions	$ 396
Notional amount of derivative	$ 400
Debt Instrument, Interest Rate, Effective Percentage	3.06%
5.25% 10-year U.S. Dollar Notes Due 2033 | Cash Flow Hedging | Interest expense
Debt Instrument [Line Items]
Unrealized gain (loss) on cash flow hedges, pre-tax			$ 47
Cumulative unrealized gain (loss) on cash flow hedge settlement, pre-tax			$ 91
2.75% 10-year U.S. Dollar Notes Due 2023
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 210
Debt Instrument, Interest Rate, Stated Percentage	2.75%
U.S. commercial paper
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage		5.44%			5.44%		4.46%
Notes Payable, Current		$ 0			$ 0		$ 330
Bank borrowings
Debt Instrument [Line Items]
Notes Payable, Current		353			353		$ 137
Other assets | Line of Credit | WK Kellogg Co
Debt Instrument [Line Items]
Debt Issuance Costs, Gross		2			2
Loans | Line of Credit | WK Kellogg Co
Debt Instrument [Line Items]
Debt Issuance Costs, Gross		5			5
Revolving Credit Facility | Line of Credit | WK Kellogg Co
Debt Instrument [Line Items]
Long-Term Line of Credit		350			350
Term Loan | Line of Credit | WK Kellogg Co
Debt Instrument [Line Items]
Long-term debt		500			500
Delayed Draw Term Loan [Member] | Line of Credit | WK Kellogg Co
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		250			250
Long-term debt		$ 250			$ 250
Credit Agreement as a percentage of EBITDA		100%			100%

Employee Benefits - Components

Employee Benefits - Components of Plan Benefit Expense (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022
Pension | Global Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 6	$ 6	$ 18	$ 23
Interest cost	44	34	132	91
Expected return on plan assets	(54)	(57)	(161)	(200)
Amortization of unrecognized prior service cost (gain)	2	2	7	7
Recognized net (gain) loss	10	(15)	10	(46)
Net periodic benefit cost	8	(30)	6	(125)
Other Nonpension Postretirement | U.S. and Canada
Defined Benefit Plan Disclosure [Line Items]
Service cost	2	2	5	8
Interest cost	11	6	31	18
Expected return on plan assets	(25)	(28)	(73)	(83)
Amortization of unrecognized prior service cost (gain)	(2)	(2)	(7)	(7)
Recognized net (gain) loss	(67)	0	(67)	0
Total plan benefit (income) expense	(81)	(22)	(111)	(64)
Postemployment | Global Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	1	0	2	2
Interest cost	1	1	2	1
Recognized net (gain) loss	(1)	0	(2)	(2)
Total plan benefit (income) expense	$ 1	$ 1	$ 2	$ 1

Employee Benefits - Component_2

Employee Benefits - Components of Plan Benefit Expense Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022	May 31, 2023
U.S. and Canada | Other Nonpension Postretirement
Defined Benefit Plan Disclosure [Line Items]
Recognized net (gain) loss	$ (67)	$ 0	$ (67)	$ 0
Global Plans | Pension
Defined Benefit Plan Disclosure [Line Items]
Recognized net (gain) loss	10	(15)	10	(46)
Global Plans | Postemployment
Defined Benefit Plan Disclosure [Line Items]
Recognized net (gain) loss	(1)	0	(2)	(2)
UNITED STATES | Pension
Defined Benefit Plan Disclosure [Line Items]
Recognized net (gain) loss	$ 10	$ (15)	$ 10	$ (46)
UNITED KINGDOM | Pension | Buy In Annuity Contract
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount					$ 590

Employee Benefits - Contributio

Employee Benefits - Contributions to Employee Benefit Plans (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022	Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Employer contributions to employee benefit plans	$ 3	$ 5	$ 13	$ 17	$ 23
Total current year projected employer contributions	26		26
Global Plans | Pension
Defined Benefit Plan Disclosure [Line Items]
Employer contributions to employee benefit plans	0	1	0	2	3
Total current year projected employer contributions	5		5
U.S. and Canada | Nonpension postretirement
Defined Benefit Plan Disclosure [Line Items]
Employer contributions to employee benefit plans	3	$ 4	13	$ 15	$ 20
Total current year projected employer contributions	$ 21		$ 21

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended		9 Months Ended
	Jul. 29, 2023	Sep. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022	Jul. 01, 2023	Dec. 31, 2022
Income Tax Contingency [Line Items]
Effective income tax rate		28%	19%	24%	21%
Income taxes		$ 104	$ 74	$ 294	$ 283
Unrecognized tax benefits		34		34
Projected additions to unrecognized tax benefits		3		3
Unrecognized tax benefits that would affect the effective income tax rate		28		28
Loss on Russia divestiture - other income/(expense)				113	0
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on Russia divestiture - other income/(expense)				113	$ 0
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax		(2,401)		(2,401)			$ (2,111)
RUSSIAN FEDERATION | Europe
Income Tax Contingency [Line Items]
Loss on Russia divestiture - other income/(expense)	$ (113)	(113)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on Russia divestiture - other income/(expense)	$ (113)	(113)
Other current liabilities
Income Tax Contingency [Line Items]
Unrecognized tax benefits		11		11
Tolaram Africa Foods Pte Ltd [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax		$ 129		$ 129		$ 113

Derivative Instruments and Fa_3

Derivative Instruments and Fair Value Measurements - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022
Derivative [Line Items]
Net deferred losses reported in AOCI to be reclassified into income in the next twelve months			$ (10)
Gain (loss) recognized in AOCI	$ 111	$ 260	17	$ 616
Unrealized gain (loss) on cash flow hedges, pre-tax	40	62	37	213
Concentration Risk, Credit Risk, Financial Instrument, Maximum Exposure			43
Reclassification to net income, pre-tax	(2)	14	(7)	6
Net Investment Hedging
Derivative [Line Items]
Gain (loss) recognized in AOCI	111	260	17	616
Cross currency interest rate contract | Net Investment Hedging
Derivative [Line Items]
Gain (loss) recognized in AOCI	12		29	37
Accounts Receivable, Net | Exchange-traded commodity
Derivative [Line Items]
Margin deposits	22		22
Interest expense | Cash Flow Hedging
Derivative [Line Items]
Unrealized gain (loss) on cash flow hedges, pre-tax	14	83	85	165
Reclassification to net income, pre-tax		18
Interest expense | Cross currency interest rate contract | Net Investment Hedging
Derivative [Line Items]
Gain (loss) recognized in AOCI	$ 67	$ 123	$ 7	$ 277

Derivative Instruments and Fa_4

Derivative Instruments and Fair Value Measurements - Schedule of Total Notional Amounts of Derivative Instruments (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Derivatives, Fair Value [Line Items]
Notional amount of derivative	$ 7,378	$ 7,372
Foreign currency exchange contracts
Derivatives, Fair Value [Line Items]
Notional amount of derivative	2,826	2,502
Cross currency interest rate contract
Derivatives, Fair Value [Line Items]
Notional amount of derivative	1,925	1,983
Interest rate contracts
Derivatives, Fair Value [Line Items]
Notional amount of derivative	2,251	2,657
Commodity contracts
Derivatives, Fair Value [Line Items]
Notional amount of derivative	$ 376	$ 230

Derivative Instruments and Fa_5

Derivative Instruments and Fair Value Measurements - Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Millions		Sep. 30, 2023	Dec. 31, 2022
Derivatives, Fair Value [Line Items]
Fair Value Of Related Hedge Portion Of Long Term Debt		$ 1,000	$ 1,100
Long-term debt total, carrying value		5,500	5,300
Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		125	194
Liabilities		(78)	(86)
Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		87	110
Liabilities		(89)	(86)
Level 1 | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		0	0
Liabilities		0	0
Level 1 | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		4	4
Liabilities		(12)	(2)
Level 2 | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		125	194
Liabilities		(78)	(86)
Level 2 | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		83	106
Liabilities		(77)	(84)
Cross currency interest rate contract | Other current assets | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		77	88
Cross currency interest rate contract | Other current assets | Level 1 | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		0	0
Cross currency interest rate contract | Other current assets | Level 2 | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		77	88
Cross currency interest rate contract | Other assets | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		25	36
Cross currency interest rate contract | Other assets | Level 1 | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		0	0
Cross currency interest rate contract | Other assets | Level 2 | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		25	36
Cross currency interest rate contract | Other current liabilities | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liabilities		0	0
Cross currency interest rate contract | Other current liabilities | Level 1 | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liabilities		0	0
Cross currency interest rate contract | Other current liabilities | Level 2 | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liabilities		0	0
Cross currency interest rate contract | Other liabilities | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liabilities		0	0
Cross currency interest rate contract | Other liabilities | Level 1 | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liabilities		0	0
Cross currency interest rate contract | Other liabilities | Level 2 | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liabilities		0	0
Foreign currency exchange contracts | Other current assets | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		56	74
Foreign currency exchange contracts | Other current assets | Level 1 | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		0	0
Foreign currency exchange contracts | Other current assets | Level 2 | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		56	74
Foreign currency exchange contracts | Other assets | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		7	14
Foreign currency exchange contracts | Other assets | Level 1 | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		0	0
Foreign currency exchange contracts | Other assets | Level 2 | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		7	14
Foreign currency exchange contracts | Other current liabilities | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liabilities		(49)	(50)
Foreign currency exchange contracts | Other current liabilities | Level 1 | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liabilities		0	0
Foreign currency exchange contracts | Other current liabilities | Level 2 | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liabilities		(49)	(50)
Foreign currency exchange contracts | Other liabilities | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liabilities		(3)	(9)
Foreign currency exchange contracts | Other liabilities | Level 1 | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liabilities		0	0
Foreign currency exchange contracts | Other liabilities | Level 2 | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liabilities		(3)	(9)
Interest rate contracts | Other current assets | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		23	45
Interest rate contracts | Other current assets | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		9	4
Interest rate contracts | Other current assets | Level 1 | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		0	0
Interest rate contracts | Other current assets | Level 1 | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		0	0
Interest rate contracts | Other current assets | Level 2 | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		23	45
Interest rate contracts | Other current assets | Level 2 | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		9	4
Interest rate contracts | Other assets | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		0	25
Interest rate contracts | Other assets | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		11	14
Interest rate contracts | Other assets | Level 1 | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		0	0
Interest rate contracts | Other assets | Level 1 | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		0	0
Interest rate contracts | Other assets | Level 2 | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		0	25
Interest rate contracts | Other assets | Level 2 | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		11	14
Interest rate contracts | Other current liabilities | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liabilities		(16)	0
Interest rate contracts | Other current liabilities | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liabilities		(11)	(7)
Interest rate contracts | Other current liabilities | Level 1 | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liabilities		0	0
Interest rate contracts | Other current liabilities | Level 1 | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liabilities		0	0
Interest rate contracts | Other current liabilities | Level 2 | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liabilities	[1]	(16)	0
Interest rate contracts | Other current liabilities | Level 2 | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liabilities		(11)	(7)
Interest rate contracts | Other liabilities | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liabilities		(62)	(86)
Interest rate contracts | Other liabilities | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liabilities		(14)	(18)
Interest rate contracts | Other liabilities | Level 1 | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liabilities		0	0
Interest rate contracts | Other liabilities | Level 1 | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liabilities		0	0
Interest rate contracts | Other liabilities | Level 2 | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liabilities	[1]	(62)	(86)
Interest rate contracts | Other liabilities | Level 2 | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liabilities		(14)	(18)
Commodity contracts | Other current assets | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		4	4
Commodity contracts | Other current assets | Level 1 | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		4	4
Commodity contracts | Other current assets | Level 2 | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets		0	0
Commodity contracts | Other current liabilities | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liabilities		(12)	(2)
Commodity contracts | Other current liabilities | Level 1 | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liabilities		(12)	(2)
Commodity contracts | Other current liabilities | Level 2 | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liabilities		0	0
Net Investment Hedging
Derivatives, Fair Value [Line Items]
Long-term debt total, carrying value		$ 1,600	$ 1,600
[1]The fair value of the related hedged portion of the Company's long-term debt, a level 2 liability, was $1.0 billion as of September 30, 2023 and $1.1 billion as of December 31, 2022.

Derivative Instruments and Fa_6

Derivative Instruments and Fair Value Measurements - Schedule of Cumulative Basis Adjustments for Fair Value Hedges (Details) - USD ($) $ in Millions		Sep. 30, 2023	Dec. 31, 2022
Derivatives, Fair Value [Line Items]
Current maturities of long-term debt		$ 1,193	$ 780
Long-term debt		5,530	5,317
Carrying amount of hedged liability | Fair Value Hedges | Interest rate contracts | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Current maturities of long-term debt		897	483
Long-term debt		1,623	2,250
Cumulative fair value adjustment | Fair Value Hedges | Interest rate contracts | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Current maturities of long-term debt	[1]	3	(3)
Long-term debt	[1]	(59)	(74)
Hedging adjustment | Discontinued Hedges | Interest rate contracts
Derivatives, Fair Value [Line Items]
Current maturities of long-term debt		3	(3)
Long-term debt		$ 3	$ 13
[1]The fair value adjustment related to current maturities of long-term debt includes $3 million and ($3) million from discontinued hedging relationships as of September 30, 2023 and December 31, 2022, respectively. The fair value adjustment related to long-term debt includes $3 million and $13 million from discontinued hedging relationships as of September 30, 2023 and December 31, 2022, respectively.

Derivative Instruments and Fa_7

Derivative Instruments and Fair Value Measurements - Schedule of Offsetting Assets and Liabilities (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Offsetting [Abstract]
Asset derivatives, Amounts Presented in the Consolidated Balance Sheet	$ 212	$ 304
Asset derivatives, Financial Instruments, Gross Amounts Not Offset in the Consolidated Balance Sheet	(138)	(153)
Asset derivatives, Cash Collateral Posted, Gross Amounts Not Offset in the Consolidated Balance Sheet	25	(33)
Asset derivatives, Net Amount	99	118
Liability derivatives, Amounts Presented in the Consolidated Balance Sheet	(167)	(172)
Liability derivatives, Financial Instruments, Gross Amounts Not Offset in the Consolidated Balance Sheet	138	153
Liability derivatives, Cash Collateral Received, Gross Amounts Not Offset in the Consolidated Balance Sheet	29	19
Liability derivatives, net amount	$ 0	$ 0

Derivative Instruments and Fa_8

Derivative Instruments and Fair Value Measurements - Effect of Derivative Instruments on the Consolidated Statements of Income and Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in AOCI	$ 111	$ 260	$ 17	$ 616
Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	(12)	8	(104)	60
Not Designated as Hedging Instrument | Foreign currency exchange contracts | COGS
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	10	14	(4)	34
Not Designated as Hedging Instrument | Foreign currency exchange contracts | Selling, General and Administrative Expenses
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	1	3	(4)	8
Not Designated as Hedging Instrument | Foreign currency exchange contracts | Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	0	1	0	3
Not Designated as Hedging Instrument | Foreign currency exchange contracts | Other income (expense), net
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	(1)	(9)	(11)	(18)
Not Designated as Hedging Instrument | Commodity contracts | COGS
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	(22)	(1)	(85)	33
Net Investment Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in AOCI	111	260	17	616
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	14	11	42	28
Net Investment Hedging | Foreign currency denominated long-term debt
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in AOCI	44	137	10	339
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	0	0	0	0
Net Investment Hedging | Cross currency interest rate contract
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in AOCI	12		29	37
Net Investment Hedging | Cross currency interest rate contract | Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in AOCI	67	123	7	277
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	$ 14	$ 11	$ 42	$ 28

Derivative Instruments and Fa_9

Derivative Instruments and Fair Value Measurements - Schedule of Effect of Fair Value and Cash Flow Hedge Accounting on Consolidated Statement of Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Interest Expense, Debt	$ 83	$ 39	$ 245	$ 149
Interest rate contracts | Designated as Hedging Instrument | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) reclassified from AOCI into income	(2)	14	(7)	6
Interest rate contracts | Interest expense | Designated as Hedging Instrument | Fair Value Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Hedged items	(1)	35	(5)	89
Derivatives designated as hedging instruments	$ 2	$ (34)	$ 8	$ (85)

Derivative Instruments and F_10

Derivative Instruments and Fair Value Measurements - Schedule of Other Fair Value Measurements (Details) - USD ($) $ in Millions	9 Months Ended		12 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Sales of available for sale securities	$ 15	$ 14
Purchases of available for sale securities	15	15
Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Available-for-sale securities, amortized cost	50		$ 52
Available-for-sale securities, unrealized gain (loss)	(4)		(5)
Available-for-sale securities, market value	46		$ 47
Level 2 | Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Gain (loss) on sale of available-for-sale securities	(1)	(1)
Sales of available for sale securities	15	14
Purchases of available for sale securities	$ 15	$ 15

Derivative Instruments and F_11

Derivative Instruments and Fair Value Measurements - Equity Investments (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Other assets | Level 2
Derivatives, Fair Value [Line Items]
Equity investments	$ 40	$ 40

Derivative Instruments and F_12

Derivative Instruments and Fair Value Measurements - Schedule of Fair Value of Long-term Debt (Details) - USD ($) $ in Billions	Sep. 30, 2023	Dec. 31, 2022
Derivative Instruments and Fair Value Measurements [Abstract]
Long-term debt, fair value	$ 5.2	$ 5.1
Long-term debt total, carrying value	$ 5.5	$ 5.3

Reportable Segments (Details)

Reportable Segments (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($)	Oct. 01, 2022 USD ($)	Sep. 30, 2023 USD ($)	Oct. 01, 2022 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments			4
Net sales	$ 3,939	$ 3,946	$ 12,033	$ 11,482
Operating profit	482	368	1,431	1,300
Operating Segments
Segment Reporting Information [Line Items]
Net sales	3,940	3,949	12,035	11,488
Operating profit	514	490	1,650	1,597
Operating Segments | North America
Segment Reporting Information [Line Items]
Net sales	2,329	2,338	7,042	6,696
Operating profit	312	322	1,048	1,043
Operating Segments | Europe
Segment Reporting Information [Line Items]
Net sales	616	562	1,888	1,749
Operating profit	97	75	293	280
Operating Segments | Latin America
Segment Reporting Information [Line Items]
Net sales	338	282	966	826
Operating profit	42	29	105	82
Operating Segments | AMEA
Segment Reporting Information [Line Items]
Net sales	657	767	2,139	2,217
Operating profit	63	64	204	192
Corporate
Segment Reporting Information [Line Items]
Net sales	(1)	(3)	(2)	(6)
Operating profit	$ (32)	$ (122)	$ (219)	$ (297)

Reportable Segments Supplementa

Reportable Segments Supplemental Product Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022
Segment Reporting Information [Line Items]
Net sales	$ 3,939	$ 3,946	$ 12,033	$ 11,482
Snacks
Segment Reporting Information [Line Items]
Net sales	2,040	1,943	6,114	5,635
Cereal
Segment Reporting Information [Line Items]
Net sales	1,368	1,355	4,155	3,978
Frozen
Segment Reporting Information [Line Items]
Net sales	281	281	838	829
Noodles and other
Segment Reporting Information [Line Items]
Net sales	$ 250	$ 367	$ 926	$ 1,040

Supplemental Financial Statem_3

Supplemental Financial Statement Data - Consolidated Balance Sheet (Unaudited) (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Trade receivables	$ 1,657	$ 1,449
Allowance for credit losses	(16)	(13)
Refundable income taxes	23	82
Other receivables	212	218
Accounts receivable, net	1,876	1,736
Raw materials and supplies	399	426
Finished goods and materials in process	1,233	1,342
Inventories	1,632	1,768
Intangible assets not subject to amortization	1,854	1,969
Intangible assets subject to amortization, net	211	327
Other intangibles, net	$ 2,065	$ 2,296