Changes in Pension and Other Postretirement Benefit Obligations, Plan Assets and Funded Status (Detail) - North America - USD ($) $ in Millions	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Obligation at beginning of period	$ 979	$ 1,000
Service cost	4	6	$ 7
Interest cost	35	39	45
Actuarial (gain) loss	(51)	25
Benefits paid	(87)	(91)
Obligation at end of period	880	979	1,000
Fair value of plan assets at beginning of period	908	870
Actual return (loss) on plan assets	(46)	114
Employer contribution	5	15
Benefits paid	(87)	(91)
Fair value of plan assets at end of period	780	908	870
Net asset (liability) recognized at end of period	(100)	(71)
Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Obligation at beginning of period	14	13
Interest cost	1	1	1
Assumption changes	(1)
Currency exchange rate change	(1)	1
Benefits paid	(1)	(1)
Obligation at end of period	12	14	$ 13
Employer contribution	1	1
Benefits paid	(1)	(1)
Net asset (liability) recognized at end of period	$ (12)	$ (14)