Consolidated Condensed Balance Sheets (Unaudited) (Parenthetical) (USD $) In Millions, except Share data	Sep. 30, 2011	Dec. 31, 2010
Current assets:
Allowances for doubtful accounts receivable	$ 31	$ 24
Shareholders' equity:
Common stock, par value	$ 1.00	$ 1.00
Common stock, shares authorized	12,000	12,000
Common stock, shares issued	12,000	12,000
Common stock, shares outstanding	12,000	12,000