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Employee Benefit Plans - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 25, 2021 | Dec. 26, 2020 | Dec. 28, 2019
Retirement Savings Plans |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Compensation expense relating to retirement savings plans | $ 16 | $ 17 | $ 21
Increase (Decrease) in Mortality Table |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Increase (decrease) in pension obligations | 3 | (10) |
Increase (Decrease) in Mortality Table | Maximum |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Increase (decrease) in other postretirement obligations | 1 | (1) |
Actuarial Gains |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Increase (decrease) in pension obligations | $ (12) |  |
Actuarial Gains | Maximum |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Increase (decrease) in pension obligations |  | $ (1) |
Pension Benefits |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Expected long-term return on plan assets | 4.31% | 5.16% | 5.44%
North America |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Expected long-term return on plan assets | 3.64% |  |
North America | Maximum | Equity Securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan asset target allocation | 15.00% |  |
North America | Maximum | Fixed Income Securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan asset target allocation | 95.00% |  |
North America | Minimum | Equity Securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan asset target allocation | 5.00% |  |
North America | Minimum | Fixed Income Securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan asset target allocation | 85.00% |  |
North America | Change in Discount Rate Assumptions |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Increase (decrease) in pension obligations | $ (31) | $ 78 |
North America | Pension Benefits |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension contributions, current period | 2 |  |
Pension contributions, for 2022 | $ 2 |  |
United Kingdom |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Expected long-term return on plan assets | 2.03% | 1.64% | 1.76%
Plan asset target allocation | 100.00% | 100.00% |
Deferred (loss) gain included in accumulated other comprehensive income | $ 24 | $ 18 |
Percentage of allowance expense on assets | 0.17% |  |
United Kingdom | United Kingdom Government Securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Incremental return on UK government securities | 4.10% |  |
United Kingdom | Equity Securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan asset target allocation | 14.00% | 14.00% |
United Kingdom | Fixed Income Securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan asset target allocation | 84.00% | 85.00% |

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- Definition Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit 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 (k)(3) -URI http://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 20 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2919-114920 + Details
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