Share-Based Compensation Plans (Compensation Cost and Related Income Tax Benefit) (Details) (USD $) In Millions	12 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2009
Total compensation cost	$ 32	$ 60	$ 58
Related income tax benefit	12	22	22
Cost of Products Sold [Member]
Total compensation cost	4	8	8
Selling and Administrative Expenses [Member]
Total compensation cost	26	46	45
Research and Development Costs [Member]
Total compensation cost	$ 2	$ 6	$ 5