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POSTRETIREMENT BENEFIT PLANS (Tables) | 6 Months Ended
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Jun. 27, 2021
Retirement Benefits [Abstract] |
Schedule of Pretax Net Periodic Benefit Cost | Our pretax net periodic benefit income related to our qualified defined benefit pension plans and retiree medical and life insurance plans consisted of the following (in millions):
|  | Quarters Ended | Six Months Ended
|  | June 27, 2021 |  | June 28, 2020 | June 27, 2021 |  | June 28, 2020
Qualified defined benefit pension plans |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 27 |  |  |  | $ | 26 |  |  | $ | 54 |  |  |  | $ | 51 |  |
Interest cost |  | 310 |  |  |  | 384 |  |  | 621 |  |  |  | 769 |  |
Expected return on plan assets |  | (569) |  |  |  | (566) |  |  | (1,138) |  |  |  | (1,132) |  |
Recognized net actuarial losses |  | 252 |  |  |  | 212 |  |  | 504 |  |  |  | 424 |  |
Amortization of prior service credits |  | (87) |  |  |  | (85) |  |  | (174) |  |  |  | (171) |  |
Total net periodic benefit income |  | $ | (67) |  |  |  | $ | (29) |  |  | $ | (133) |  |  |  | $ | (59) |  |
Retiree medical and life insurance plans |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 4 |  |  |  | $ | 4 |  |  | $ | 7 |  |  |  | $ | 7 |  |
Interest cost |  | 13 |  |  |  | 17 |  |  | 26 |  |  |  | 35 |  |
Expected return on plan assets |  | (35) |  |  |  | (32) |  |  | (70) |  |  |  | (64) |  |
Recognized net actuarial gains |  | — |  |  |  | (1) |  |  | — |  |  |  | (2) |  |
Amortization of prior service costs |  | 9 |  |  |  | 9 |  |  | 18 |  |  |  | 19 |  |
Total net periodic benefit income |  | $ | (9) |  |  |  | $ | (3) |  |  | $ | (19) |  |  |  | $ | (5) |  |

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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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