Fair Value Measurements - Schedule of Fair Value and Carrying Value of Long-Term Debt (Details) - Level 2 - USD ($) $ in Millions |
Jun. 26, 2015 |
Dec. 26, 2014 |
---|---|---|
Fair Value | ||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||
Long-term Debt (Including Current Maturities) | $ 10,788 | $ 11,042 |
Carrying Value | ||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||
Long-term Debt (Including Current Maturities) | $ 10,125 | $ 9,742 |