Quarterly Information - Summary of Quarterly Information (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 25, 2015	Jun. 26, 2015	Mar. 27, 2015	Dec. 31, 2014	Sep. 26, 2014	Jun. 27, 2014	Mar. 28, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Selected Quarterly Financial Information [Abstract]
Net revenue	$ 1,658	$ 1,645	$ 1,681	$ 1,635	$ 1,641	$ 1,583	$ 1,564	$ 1,490	$ 6,619	$ 6,278	$ 5,657
Income before allocations to partners	$ 194	$ 208	$ 222	$ 214	$ 195	$ 195	$ 194	$ 186	$ 838	$ 770	$ 674
Income allocated to limited partners per weighted average $1,000 equivalent limited partnership unit outstanding	$ 30.38	$ 32.67	$ 34.83	$ 33.54	$ 32.69	$ 32.77	$ 32.67	$ 31.27	$ 131.42	$ 129.40	$ 121.12