Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Preferred Stock, par value (in dollars per share)	$ 1.00	$ 1
Preferred Stock, shares authorized	10,000,000	10,000,000
Preferred Stock, shares issued	0	0
Preferred Stock, shares outstanding	0	0
Common Stock, par value (in dollars per share)	$ 1.00	$ 1.00
Common Stock, shares authorized	450,000,000	450,000,000
Common Stock, shares issued	202,000,000	202,000,000
Common Stock, shares outstanding	120,000,000	119,000,000
Common Stock in treasury, shares	82,000,000	83,000,000