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Net Income Attributable to PepsiCo per Common Share (Narrative) (Details) - $ / shares
shares in Millions
12 Months Ended
Dec. 26, 2015
Dec. 27, 2014
Dec. 28, 2013
Earnings Per Share [Abstract]      
Out-of-the-money options excluded from earnings per share 1.5   0.6
Out-of-the-money options average exercise price $ 99.25 $ 82.25 $ 75.69