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