Earnings Per Share (Details) (USD $) Share data in Millions, except Per Share data	1 Months Ended	3 Months Ended								12 Months Ended
	Jun. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2009	Sep. 30, 2009	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2009
Basic earnings per share
Net earnings attributable to controlling interests		$ 381,000,000	$ 578,000,000	$ 732,000,000	$ 345,000,000	$ 446,000,000	$ 421,000,000	$ 567,000,000	$ 496,000,000	$ 2,036,000,000	$ 1,930,000,000	$ 1,684,000,000
Average number of shares outstanding - basic (in shares)										642	643	643
Basic earnings per share (in dollars per share)		$ 0.59	$ 0.91	$ 1.15	$ 0.54	$ 0.70	$ 0.65	$ 0.88	$ 0.77	$ 3.17	$ 3.00	$ 2.62
Diluted earnings per share
Net earnings attributable to controlling interests		381,000,000	578,000,000	732,000,000	345,000,000	446,000,000	421,000,000	567,000,000	496,000,000	2,036,000,000	1,930,000,000	1,684,000,000
Plus: After-tax interest on 4.7% debentures related to $1.75 billion Equity Units										13,000,000
Adjusted net earnings attributable to controlling interests										2,049,000,000	1,930,000,000	1,684,000,000
Average number of shares outstanding - basic (in shares)										642	643	643
Plus: Incremental shares
Share-based compensation awards (in shares)										1	1	1
Shares assumed issued related to $1.75 billion Equity Units (in shares)	44		44							11
Adjusted average number of shares outstanding (in shares)										654	644	644
Diluted earnings per common share (in dollars per share)		$ 0.58	$ 0.86	$ 1.14	$ 0.54	$ 0.69	$ 0.65	$ 0.88	$ 0.77	$ 3.13	$ 3.00	$ 2.62
Debt Instruments.
Debt face amount	$ 1,750,000,000	$ 1,750,000,000								$ 1,750,000,000
Shares assumed issued included in adjusted average shares outstanding (in shares)	44		44							11
Shares issued related to equity unit conversion (in shares)			44