Accumulated Other Comprehensive Income Additional Information - AOCI (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Mar. 31, 2013
Statement of Other Comprehensive Income [Abstract]
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax	$ 127
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax	8
Other Comprehensive Income (Loss), Available-for-sale Securities, Tax	$ 2