Earnings Per Common Share ("EPS") (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended						4 Months Ended			12 Months Ended
	Sep. 06, 2014	Jun. 14, 2014	Mar. 22, 2014	Sep. 07, 2013	Jun. 15, 2013	Mar. 23, 2013	Dec. 27, 2014	Dec. 28, 2013		Dec. 27, 2014		Dec. 28, 2013		Dec. 29, 2012
Earnings Per Share [Abstract]
Net Income (loss) - YUM! Brands, Inc.	$ 404	$ 334	$ 399	$ 152	$ 281	$ 337	$ (86)	$ 321	[1]	$ 1,051		$ 1,091	[1]	$ 1,597
Weighted-average common shares outstanding (for basic calculation) (in shares)										444		452		461
Effect of dilutive share-based employee compensation (in shares)										9		9		12
Weighted-average common and dilutive potential common shares outstanding (for diluted calculation) (in shares)										453		461		473
Basic EPS (in dollars per share)	$ 0.91	$ 0.75	$ 0.89	$ 0.34	$ 0.62	$ 0.74	$ (0.20)	$ 0.72		$ 2.37		$ 2.41		$ 3.46
Diluted EPS (in dollars per share)	$ 0.89	$ 0.73	$ 0.87	$ 0.33	$ 0.61	$ 0.72	$ (0.20)	$ 0.70		$ 2.32		$ 2.36		$ 3.38
Unexercised employee stock options and stock appreciation rights (in millions) excluded from the diluted EPS computation (in shares)										5.5	[2]	4.9	[2]	3.1	[2]

[1] Includes an after-tax charge of $75 million in the fourth quarter related to the repurchase of Senior Unsecured Notes. See Note 4.

[2] These unexercised employee stock options and stock appreciation rights were not included in the computation of diluted EPS because to do so would have been antidilutive for the periods presented.