Financial Instruments (Tables)

3 Months Ended

Sep. 30, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Summary of Estimated Fair Value of 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)	September 30, 2015		June 30, 2015
Estimated fair value	$	5,618	$	5,521
Carrying amount	5,550		5,492