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BENEFIT PLANS - COMPONENTS OF NET PERIODIC BENEFIT COSTS (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Aug. 14, 2021 | Aug. 15, 2020 | Aug. 14, 2021 | Aug. 15, 2020
Pension Benefits |  |  |  |
Components of net periodic benefit cost: |  |  |  |
Service cost | $ 4 | $ 3 | $ 7 | $ 7
Interest cost | 22 | 26 | 54 | 60
Expected return on plan assets | (40) | (39) | (93) | (91)
Amortization of: |  |  |  |
Actuarial loss (gain) | 9 | 8 | 21 | 19
Net periodic benefit cost | (5) | (2) | (11) | (5)
Contributions into Fund |  |  | 0 | 0
Other Benefits |  |  |  |
Components of net periodic benefit cost: |  |  |  |
Service cost | 1 | 1 | 2 | 3
Interest cost | 1 | 1 | 2 | 3
Amortization of: |  |  |  |
Prior service cost | (3) | (2) | (7) | (6)
Actuarial loss (gain) | (4) | (2) | (10) | (4)
Net periodic benefit cost | $ (5) | $ (2) | $ (13) | $ (4)

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