CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (PARENTHETICAL) (USD $) In Millions	12 Months Ended
Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2009
Hedges and investment securities, tax	$ 711	$ 520	$ 452
Defined benefit retirement plans, tax	$ 302	$ 465	$ 879

Tax effects of the net changes to accumulated comprehensive income during the period related to benefit plans.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph c(3)

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 25

Name:	us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansTax
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration