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PENSION AND OTHER POSTRETIREMENT BENEFITS - Fair Value of Deferred Compensation Plans (Details) - Fair Value - USD ($) $ in Millions | Jan. 01, 2021 | Jan. 03, 2020
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair value of deferred compensation plan assets | $ 98 | $ 87
Fair value of deferred compensation plan liabilities | 120 | 71
Equity securities and mutual funds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair value of deferred compensation plan liabilities | 4 | 2
Equity securities and mutual funds | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair value of deferred compensation plan liabilities | 4 | 2
Common/collective trusts and guaranteed investment contracts | Investments Measured at NAV |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair value of deferred compensation plan liabilities | 116 | 69
Equity and fixed income securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair value of deferred compensation plan assets | 67 | 58
Equity and fixed income securities | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair value of deferred compensation plan assets | 67 | 58
Corporate-owned life insurance | Investments Measured at NAV |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair value of deferred compensation plan assets | $ 31 | $ 29

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