Financial Instruments (Tables)

9 Months Ended

Mar. 31, 2013

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Summary of estimated fair value of our long-term obligations and other short-term borrowings

The following table summarizes the estimated fair value of our long-term obligations and other short-term borrowings compared to the respective carrying amounts:

(in millions)	March 31, 2013		June 30, 2012
Estimated fair value	$	4,326	$	3,075
Carrying amount	4,160		2,894