Earnings Per Share (Computation Of Basic And Diluted Earnings Per Share) (Details) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Earnings Per Share [Abstract]
Net earnings attributable to controlling interests	$ 284,000,000	$ 399,000,000	$ 80,000,000	$ 460,000,000	$ 381,000,000	$ 578,000,000	$ 732,000,000	$ 345,000,000	$ 1,223,000,000	$ 2,036,000,000	$ 1,930,000,000
Average shares outstanding									665	642	643
Basic earnings per share	$ 0.43	$ 0.60	$ 0.12	$ 0.68	$ 0.59	$ 0.91	$ 1.15	$ 0.54	$ 1.84	$ 3.17	$ 3.00
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									1,223,000,000	2,049,000,000	1,930,000,000
Share-based compensation awards									1	1	1
Shares assumed issued related to $1.75 billion equity units						44				11
Adjusted average shares outstanding									666	654	644
Diluted earnings per share	$ 0.43	$ 0.60	$ 0.12	$ 0.68	$ 0.58	$ 0.86	$ 1.14	$ 0.54	$ 1.84	$ 3.13	$ 3.00
After-tax interest on debentures					4.70%					4.70%
Face amount of equity units					$ 1,750,000,000					$ 1,750,000,000