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CONTRACT ASSETS AND LIABILITIES - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 26, 2021
Sep. 27, 2020
Sep. 26, 2021
Sep. 27, 2020
Revenue from Contract with Customer [Abstract]        
Increase in contract assets     $ 3,152 $ 1,294
Impairment loss $ 0 $ 0 0 0
Decrease in contract liabilities     (30) 300
Liability, revenue recognized $ 700 $ 919 $ 3,900 $ 3,500