Changes in Pension and Other Postretirement Benefit Obligations, Plan Assets and Funded Status (Detail) - North America - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 26, 2015	Dec. 27, 2014
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Obligation at beginning of period	$ 1,094	$ 1,218
Service cost	7	3	$ 3
Interest cost	45	46	52
Actuarial (gain) loss	(8)	(78)
Benefits paid	(138)	(95)
Obligation at end of period	1,000	1,094	1,218
Fair value of plan assets at beginning of period	922	1,039
Actual return (loss) on plan assets	84	(30)
Employer contribution	2	8
Benefits paid	(138)	(95)
Fair value of plan assets at end of period	870	922	1,039
Net liability recognized at end of period	(130)	(172)
Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Obligation at beginning of period	13	17
Interest cost	1	1	1
Actuarial (gain) loss		(2)
Currency exchange rate change		(2)
Benefits paid	(1)	(1)
Obligation at end of period	13	13	$ 17
Employer contribution	1	1
Benefits paid	(1)	(1)
Net liability recognized at end of period	$ (13)	$ (13)