CONSOLIDATED BALANCE SHEET (Parenthetical) - $ / shares	Dec. 31, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Common stock, authorized (in shares)	960,000,000	960,000,000
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, issued (in shares)	423,768,593	422,915,258
Treasury stock (in shares)	9,892,680	9,892,680