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CONTRACT ASSETS AND LIABILITIES - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 27, 2021
Jun. 28, 2020
Jun. 27, 2021
Jun. 28, 2020
Revenue from Contract with Customer [Abstract]        
Increase in contract assets     $ 1,880 $ 727
Impairment loss $ 0 $ 0 0 0
Decrease in contract liabilities     (166) 427
Liability, revenue recognized $ 900 $ 1,000 $ 3,200 $ 2,600