Financial Instruments (Tables)

9 Months Ended

Mar. 31, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Summary of the estimated fair value of our long-term obligations and other short-term borrowings compared to the respective carrying amounts

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

(in millions)	March 31, 2015		June 30, 2014
Estimated fair value	$	4,148	$	4,115
Carrying amount	4,003		3,972