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RETIREMENT BENEFITS (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 28, 2024
Jun. 30, 2023
Jun. 28, 2024
Jun. 30, 2023
Pension        
Operating        
Service cost $ 9 $ 6 $ 17 $ 12
Non-operating        
Interest cost 98 91 197 183
Expected return on plan assets (165) (152) (330) (305)
Amortization of net actuarial gain (1) (3) (2) (5)
Amortization of prior service (credit) cost (6) (6) (13) (13)
Non-service cost periodic benefit income (74) (70) (148) (140)
Net periodic benefit income (65) (64) (131) (128)
Other Benefits        
Operating        
Service cost 1 1 1 1
Non-operating        
Interest cost 2 2 5 5
Expected return on plan assets (5) (5) (10) (10)
Amortization of net actuarial gain (5) (5) (9) (10)
Amortization of prior service (credit) cost 1 1 1 1
Non-service cost periodic benefit income (7) (7) (13) (14)
Net periodic benefit income $ (6) $ (6) $ (12) $ (13)