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PENSION AND OTHER POSTRETIREMENT BENEFITS - Narrative (Details)
6 Months Ended 12 Months Ended
Jan. 03, 2020
USD ($)
Dec. 31, 2021
Jan. 01, 2021
USD ($)
Jun. 28, 2019
USD ($)
Jun. 29, 2018
USD ($)
Jun. 30, 2017
USD ($)
Dec. 31, 2030
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]              
Matching contributions charged to expense $ 105,000,000   $ 225,000,000 $ 85,000,000 $ 83,000,000    
Fair value of plan assets 8,892,000,000   9,600,000,000   5,159,000,000    
Projected benefit obligation 10,637,000,000   $ 11,432,000,000   6,344,000,000    
Combine gains and losses as percentage of expected year end obligations (less than)     0.01        
Accumulated benefit obligation for all defined benefit pension plans     $ 11,000,000,000.0        
Employer contributions 414,000,000   31,000,000        
U.S.              
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]              
Fair value of plan assets     7,900,000,000        
Projected benefit obligation     9,400,000,000        
Pension              
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]              
Fair value of plan assets 8,618,000,000   9,301,000,000   4,958,000,000    
Projected benefit obligation $ 10,268,000,000   $ 11,045,000,000   $ 6,123,000,000    
Discount rate 3.14%   2.31%        
Cash balance interest crediting rate 3.50%   3.50%        
Expected return on plan assets 7.68%   7.68% 7.66% 7.66%    
Employer contributions $ 406,000,000   $ 20,000,000        
Pension | U.S.              
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]              
Percentage of total projected benefit obligation (percent)     85.00%        
Discount rate     2.32%        
Cash balance interest crediting rate     3.50%        
Expected return on plan assets     7.75%        
Employer contributions 302,000,000       $ 300,000,000 $ 400,000,000  
Required employer contributions in fiscal 2021     $ 0        
Frozen Equity Pension Plan | U.S.              
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]              
Cash balance interest crediting rate     3.25%        
Minimum              
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]              
Percentage match of the employee contribution     2.00%        
Maximum              
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]              
Percentage match of the employee contribution     6.00%        
Forecast              
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]              
Ultimate per capita cost of healthcare assumed (percent)             4.70%
Per capita cost of healthcare assumed for next fiscal year, post-age 65   6.50%          
Forecast | U.S.              
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]              
Expected return on plan assets   7.50%          
Forecast | Pension              
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]              
Expected return on plan assets   7.43%          
Forecast | Pension | U.S.              
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]              
Expected return on plan assets   7.50%          
Private equity funds              
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]              
Defined benefit plans, future unfunded commitments on NAV equity funds investments 325,000,000   $ 518,000,000        
Alternative investments              
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]              
Defined benefit plans, future unfunded commitments on NAV equity funds investments $ 0   $ 0        
Minimum redemption notice period permitted on NAV equity funds investments     90 days