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Changes in Pension and Other Postretirement Benefit Obligations, Plan Assets and Funded Status (Detail) - North America - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 25, 2021 | Dec. 26, 2020
Pension Benefits |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Obligation at beginning of period | $ 830 | $ 924 |
Interest cost | 21 | 20 | $ 28
Assumption changes | (144) | (28) |
Actuarial gain | (9) | (12) |
Benefits paid | (71) | (74) |
Obligation at end of period | 627 | 830 | 924
Fair value of plan assets at beginning of period | 836 | 894 |
Actual return on plan assets | (142) | 14 |
Employer contribution | 2 | 2 |
Benefits paid | (71) | (74) |
Fair value of plan assets at end of period | 625 | 836 | 894
Net asset (liability) recognized at end of period | (2) | 6 |
Other Benefits |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Obligation at beginning of period | 13 | 14 |
Assumption changes | (3) |  |
Benefits paid | (1) | (1) |
Obligation at end of period | 9 | 13 | $ 14
Employer contribution | 1 | 1 |
Benefits paid | (1) | (1) |
Net asset (liability) recognized at end of period | $ (9) | $ (13) |

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- Definition Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI https://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 + Details
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- Definition Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(4) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Amount of payment to participant of defined benefit plan which decreases benefit obligation. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(6) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=6414203&loc=d3e39716-114964 + Details
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