Quarterly report pursuant to Section 13 or 15(d)

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)

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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares
shares in Millions
Sep. 27, 2015
Dec. 31, 2014
Statement of Financial Position [Abstract]    
Common stock, par value (in dollars per share) $ 2.50 $ 2.50
Common stock, shares authorized 500.0 500.0
Common stock, shares issued 222.3 222.3
Treasury stock, shares 44.7 40.1
Common stock held by employee benefits trust, shares 1.0 1.1