Statement of Stockholders Equity (Parentheticals) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Net earnings Attributable to noncontrolling interests	$ 0	$ 1	$ 1	$ 2	$ 2
Cash Dividends declared	$ 0.44	$ 0.41	$ 1.26	$ 1.17	$ 1.58