PENSION AND OTHER POSTRETIREMENT BENEFITS - Funded Status of Plan and Balance Sheet Information (Details) - USD ($) $ in Millions	Dec. 31, 2021	Jan. 01, 2021	Jan. 03, 2020
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 9,924	$ 9,600	$ 8,892
Projected benefit obligation	(10,355)	(11,432)	(10,637)
Funded status	(431)	(1,832)
Other non-current assets
Consolidated Balance Sheet line item amounts:
Defined benefit plan assets	201	96
Compensation and benefits
Consolidated Balance Sheet line item amounts:
Defined benefit plan liabilities, current	(18)	(18)
Liabilities of disposal group held for sale
Consolidated Balance Sheet line item amounts:
Defined benefit plan liabilities, current	0	(4)
Defined benefit plans
Consolidated Balance Sheet line item amounts:
Defined benefit plan liabilities, noncurrent	(614)	(1,906)
Pension
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	9,604	9,301	8,618
Projected benefit obligation	(10,007)	(11,045)	(10,268)
Funded status	(403)	(1,744)
Pension | Other non-current assets
Consolidated Balance Sheet line item amounts:
Defined benefit plan assets	150	88
Pension | Compensation and benefits
Consolidated Balance Sheet line item amounts:
Defined benefit plan liabilities, current	(11)	(10)
Pension | Liabilities of disposal group held for sale
Consolidated Balance Sheet line item amounts:
Defined benefit plan liabilities, current	0	(4)
Pension | Defined benefit plans
Consolidated Balance Sheet line item amounts:
Defined benefit plan liabilities, noncurrent	(542)	(1,818)
Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	320	299	274
Projected benefit obligation	(348)	(387)	$ (369)
Funded status	(28)	(88)
Other Benefits | Other non-current assets
Consolidated Balance Sheet line item amounts:
Defined benefit plan assets	51	8
Other Benefits | Compensation and benefits
Consolidated Balance Sheet line item amounts:
Defined benefit plan liabilities, current	(7)	(8)
Other Benefits | Liabilities of disposal group held for sale
Consolidated Balance Sheet line item amounts:
Defined benefit plan liabilities, current	0	0
Other Benefits | Defined benefit plans
Consolidated Balance Sheet line item amounts:
Defined benefit plan liabilities, noncurrent	$ (72)	$ (88)