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Fair Value of Pension Plan Assets (Detail) - Pension Benefits - North America - USD ($) $ in Millions | Dec. 29, 2018 | Dec. 30, 2017 | Dec. 31, 2016
--- | --- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | $ 780 | $ 908 | $ 870
Assets Measured at NAV | 773 | 901 |
Assets Measured At Net Asset Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 773 | 901 |
Assets Measured at NAV | 773 | 901 |
Fair Value Of Plan Assets Using Fair Value Hierarchy Measurement |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 7 | 7 |
Level 1 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 7 | 7 |
Level 1 | Fair Value Of Plan Assets Using Fair Value Hierarchy Measurement |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 7 | 7 |
Common Collective Trust Funds |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 773 | 901 |
Assets Measured at NAV | 773 | 901 |
U.S. Small And Mid-Cap Equity Securities | Common Collective Trust Funds |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 14 | 23 |
Assets Measured at NAV | 14 | 23 |
U.S. Large Cap Equity Securities | Common Collective Trust Funds |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 70 | 108 |
Assets Measured at NAV | 70 | 108 |
International Equity Securities | Common Collective Trust Funds |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 135 | 202 |
Assets Measured at NAV | 135 | 202 |
Corporate Bonds | Common Collective Trust Funds |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 375 | 356 |
Assets Measured at NAV | 375 | 356 |
Government Securities | Common Collective Trust Funds |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 161 | 144 |
Assets Measured at NAV | 161 | 144 |
Other Fixed Income | Common Collective Trust Funds |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 7 | 6 |
Assets Measured at NAV | 7 | 6 |
Cash | Fair Value Of Plan Assets Using Fair Value Hierarchy Measurement |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 7 | 7 |
Cash | Level 1 | Fair Value Of Plan Assets Using Fair Value Hierarchy Measurement |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 7 | 7 |
Cash | Common Collective Trust Funds |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 11 | 62 |
Assets Measured at NAV | $ 11 | $ 62 |

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