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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) |

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