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Consolidated Balance Sheets (Parenthetical) - $ / shares
Dec. 31, 2016
Dec. 26, 2015
Common stock, par value $ 1 $ 1
Common stock, shares authorized 1,000,000,000 1,000,000,000
Common stock, shares issued 763,198,000 770,175,000
Common stock, shares outstanding 763,198,000 770,175,000