Valuation And Qualifying Accounts And Reserves (Schedule Of Valuation And Qualifying Accounts) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended		12 Months Ended
	Dec. 31, 2012		Jun. 30, 2012		Jun. 30, 2011		Jun. 30, 2010
Valuation and Qualifying Accounts [Abstract]
Balance at Beginning of Year	$ 92		$ 100		$ 97		$ 103
Additions	8		13		9		2
Deductions	(8)	[1]	(13)	[1]	(12)	[1]
Other	(5)	[2]	(8)	[2]	6	[2]	(8)	[2]
Balance at End of Year	$ 87		$ 92		$ 100		$ 97

[1] Uncollectible accounts written off and recoveries

[2] Impact of reclassifications, business combinations, and foreign currency exchange adjustments Sale of Accounts Receivable Extra value$4 million