Segment Information - Financial Information for Partnership's Reportable Segments (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 25, 2015	Sep. 30, 2016	Sep. 25, 2015
Net revenue:
Total net revenue	$ 1,683	$ 1,645	$ 4,904	$ 4,961
Pre-variable income (loss):
Total pre-variable income	359	415	1,113	1,276
Variable compensation:
Total variable compensation	173	207	528	632
Income (loss) before allocations to partners:
Total income before allocations to partners	186	208	585	644
United States [Member]
Net revenue:
Total net revenue	1,638	1,599	4,775	4,816
Pre-variable income (loss):
Total pre-variable income	358	413	1,115	1,270
Variable compensation:
Total variable compensation	169	203	517	619
Income (loss) before allocations to partners:
Total income before allocations to partners	189	210	598	651
Canada [Member]
Net revenue:
Total net revenue	45	46	129	145
Pre-variable income (loss):
Total pre-variable income	1	2	(2)	6
Variable compensation:
Total variable compensation	4	4	11	13
Income (loss) before allocations to partners:
Total income before allocations to partners	$ (3)	$ (2)	$ (13)	$ (7)