Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2012	Dec. 31, 2011
Condensed Consolidated Balance Sheets [Abstract]
Common stock, par value	$ 1	$ 1
Common stock, shares authorized	1,000,000,000	1,000,000,000
Common stock, shares issued	790,011,000	779,675,000
Common stock, shares outstanding	790,011,000	779,675,000
Treasury stock at cost, shares	2,306,000