Nature of Operations and Significant Accounting Policies (Other Items - Share Repurchases) (Details) - USD ($) shares in Millions |
12 Months Ended | |||
---|---|---|---|---|
Dec. 25, 2015 |
Dec. 26, 2014 |
Dec. 27, 2013 |
Apr. 30, 2015 |
|
Organization, Consolidation and Presentation of Financial Statements [Abstract] | ||||
Share repurchase program | $ 2,000,000,000 | |||
Shares acquired, repurchase amount | $ 804,000,000 | $ 517,000,000 | $ 353,000,000 | |
Stock repurchased, shares | 26 | 17 | 14 |