PENSION AND OTHER POSTRETIREMENT BENEFITS - Fair Value of Deferred Compensation Plans (Details) - Fair Value - USD ($) $ in Millions	Dec. 31, 2021	Jan. 01, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of deferred compensation plan assets	$ 112	$ 98
Fair value of deferred compensation plan liabilities	183	120
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	6	4
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	6	4
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	177	116
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	77	67
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	77	67
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	$ 35	$ 31