STOCK COMPENSATION (Tables)

12 Months Ended

Dec. 30, 2023

Share-Based Payment Arrangement [Abstract]

Schedule Of Compensation Expense For Equity Programs And Related Tax Benefits Text Block [Table Text Block]

(millions)	2023		2022		2021
Pre-tax compensation expense	$	96	$	100	$	73
Related income tax benefit	$	25	$	26	$	19

Schedule of Cash and Tax Benefits Received Upon Exercise of Stock Options and Similar Instruments [Table Text Block]

(millions)	2023		2022		2021
Total cash received from option exercises and similar instruments (a)	$	60	$	277	$	63
Tax windfall (shortfall) classified as cash flow from operating activities (a)	$	3	$	3	$	(3)

(a) Activities prior to the spin-off remain unadjusted to ensure consistency with historical reporting

Summary of Restricted Stock Summary [Table Text Block]

Employee restricted stock units	Shares (thousands)	Weighted-average grant-date fair value
Non-vested, beginning of year (a)	1,661	$	64
Granted	572	68
Vested	(491)	65
Forfeited	(359)	65
Performance share conversion	1,486	63
Awards transferred to WK Kellogg Co	(529)	65
Adjustment for spin-off (b)	843	—
Non-vested, end of year	3,183	$	58

(a) Activities prior to the spin-off remain unadjusted to ensure consistency with historical reporting.

(b) In connection with the spin-off of WK Kellogg Co, the modification of restricted stock units resulted in incremental expense totaling approximately $11 million to be amortized over the remaining vesting period of the award.

Additionally, restricted stock unit activity for 2022 and 2021 is presented in the following table:

Employee restricted stock units (a)	2022		2021
Shares (in thousands):
Non-vested, beginning of year	1,786		1,736
Granted	709		727
Vested	(619)		(489)
Forfeited	(215)		(188)
Non-vested, end of year	1,661		1,786
Weighted-average exercise price:
Non-vested, beginning of year	$	60	$	61
Granted	67		58
Vested	57		63
Forfeited	62		60
Non-vested, end of year	$	64	$	60

(a) Activities prior to the spin-off remain unadjusted to ensure consistency with historical reporting

Schedule of Stock Option Valuation Model Assumptions for Grants [Table Text Block]

Stock option valuation model assumptions for grants within the year ended:	2021
Weighted-average expected volatility	20.00		%
Weighted-average expected term (years)	6.7
Weighted-average risk-free interest rate	0.96		%
Dividend yield	3.90		%
Weighted-average fair value of options granted	$	6.39

Share-based Payment Arrangement, Activity [Table Text Block]

Employee and director  stock options	Shares (millions)	Weighted- average exercise price		Weighted- average remaining contractual term (yrs.)	Aggregate intrinsic value (millions)
Outstanding, beginning of year (a)	10	$	65
Granted	—	—
Exercised	(1)	59
Forfeitures and expirations	(1)	60
Awards transferred to WK Kellogg Co	(1)	66
Adjustment for spin-off (b)	2
Outstanding, end of year	9	55		4.5	$	15
Exercisable, end of year	8	$	59	4.3	$	12

(a) Activities prior to the spin-off remain unadjusted to ensure consistency with historical reporting.

(b) In connection with the spin-off of WK Kellogg Co, the modification of stock options resulted in incremental expense totaling approximately $10 million, of which $9 million was related to vested awards and was recognized immediately. The remaining expense will be amortized over the vesting period of the award.

Additionally, option activity for the comparable prior year periods is presented in the following table:

(millions, except per share data) (a)	2022		2021
Outstanding, beginning of year	15		14
Granted	—		3
Exercised	(4)		(1)
Forfeitures and expirations	(1)		(1)
Outstanding, end of year	10		15
Exercisable, end of year	8		10
Weighted-average exercise price:
Outstanding, beginning of year	$	64	$	65
Granted	—		58
Exercised	61		56
Forfeitures and expirations	63		66
Outstanding, end of year	$	65	$	64
Exercisable, end of year	$	67	$	66

(a) Activities prior to the spin-off remain unadjusted to ensure consistency with historical reporting.