Equity (Comprehensive Income, Net Of Applicable Income Taxes) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2012	Mar. 31, 2011
Equity [Abstract]
Net earnings	$ 556	$ 567	$ 937	$ 1,058
Foreign currency translation	90	301	(6)	281
Cash flow hedges and other	43	(17)	70	(1)
Total	689	851	1,001	1,338
Less: Noncontrolling interests	11	13	19	26
Amounts attributable to common stockholders	$ 678	$ 838	$ 982	$ 1,312