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Fair Value Measurements - Significant Financial Instruments Not Measured at Fair Value (Details) - USD ($)
$ in Millions
Apr. 02, 2021
Jan. 01, 2021
Carrying Amount    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt (including current portion) $ 7,078 $ 6,953
Fair Value | Level 2 | Market approach    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt (including current portion) $ 7,736 $ 7,986