Reclassification out of Accumulated Other Comprehensive Income (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended												12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2014		Dec. 31, 2013		Dec. 28, 2012
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense													$ (115)	[1]	$ (120)	[1]	$ (137)	[1]
Income before income taxes													1,088		897		849
Provision for income taxes													(335)		(271)		(278)
Net income	197	192	192	172	151	[2]	160	[2]	179	[2]	136	[2],[3]	753		626	[2]	571
Reclassification out of Accumulated Other Comprehensive Income | Other Derivative Instrument Adjustments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Franchise fees													1
Interest expense													(5)
Income before income taxes													(4)
Provision for income taxes													2
Net income													$ (2)

[1] See Footnote No. 17, “Related Party Transactions,” to our Consolidated Financial Statements for disclosure of related party amounts.

[2] The sum of the earnings per share for the four quarters differs from annual earnings per share due to the required method of computing the weighted average shares in interim periods.

[3] Beginning in 2013, we changed our financial reporting cycle to a calendar year-end reporting cycle and an end-of-month quarterly reporting cycle. Accordingly, our 2013 first quarter included the period from December 29, 2012 through March 31, 2013.