Summary of Significant Accounting Policies (Details) (USD $)	12 Months Ended			1 Months Ended	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2011 Noncontrolling Interests [Member]	Jun. 30, 2012 Building [Member] Minimum [Member]	Jun. 30, 2012 Building [Member] Maximum [Member]	Jun. 30, 2012 Machinery And Equipment [Member] Minimum [Member]	Jun. 30, 2012 Machinery And Equipment [Member] Maximum [Member]
Principles of Consolidation
Difference in financial statement date of certain subsidiaries and affiliates included in Company's results (in days)	93 days
Reporting period lag eliminated in the reporting of one consolidated subsidiary		1 month
Noncontrolling interests previously associated with mandatorily redeemable instruments	$ 184,000,000			$ 174,000,000
Use of Estimates
Effect of change in accounting estimate on after-tax earnings		83,000,000
Effect of change in accounting estimate on diluted earnings per share (in dollars per share)		$ 0.13
Receivables
Allowance for estimated uncollectible trade accounts receivable	92,000,000	100,000,000
Trade accounts receivable due from unconsolidated affiliates	263,000,000	367,000,000
Property, Plant, and Equipment
Property, Plant and Equipment, Useful Life					10 years	40 years	3 years	30 years
Capitalized interest on major construction projects	21,000,000	7,000,000	75,000,000
Net Sales
Net sales to unconsolidated affiliates	7,700,000,000	7,100,000,000	7,100,000,000
Research and Development
Research and development expenses, net of expenditures subsequently reimbursed by government grants	$ 56,000,000	$ 60,000,000	$ 56,000,000