Costs Associated with Exit and Restructuring Activities - Rollforward of Exit and Restructuring Accruals (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 01, 2016	Oct. 03, 2015	Oct. 01, 2016	Oct. 03, 2015
Restructuring Reserve [Roll Forward]
Balance at the beginning of the period	$ 13	$ 18	$ 15	$ 7
Charged to earnings	7	6	17	35
Cash paid	(4)	(8)	(16)	(26)
Reclassification to held for sale liabilities	(2)	0	(2)	0
Balance at the end of the period	$ 14	$ 16	$ 14	$ 16