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Notes payable and long-term debt (Tables)
 6 Months Ended
Jul. 03, 2021
Debt Disclosure [Abstract]  
Components of Notes Payable
The following table presents the components of notes payable at July 3, 2021 and January 2, 2021:
 July 3, 2021January 2, 2021
(millions)Principal
amount		Effective
interest rate 		Principal
amount		Effective
interest rate
U.S. commercial paper$425 0.15 %$25 0.20 %
Bank borrowings126 77 
Total$551 $102