Income Taxes (Significant Components Of Deferred Tax Liabilities And Assets) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Jun. 30, 2012	Jun. 30, 2011
Deferred tax liabilities
Property, plant, and equipment	$ 1,163	$ 1,085	$ 1,016
Equity in earnings of affiliates	329	334	255
Debt exchange	140	58
Inventories	89	81	324
Other	141	92	104
Total deferred tax liabilities	1,862	1,650	1,699
Deferred tax assets
Pension and postretirement benefits	373	487	307
Stock compensation	67	63	58
Foreign tax credit carryforwards	32	31	46
Foreign tax loss carryforwards	344	241	220
Capital loss carryforwards	25
State tax attributes	79	67	57
Other	105	126	129
Gross deferred tax assets	1,025	1,015	817
Valuation allowances	(173)	(145)	(95)
Net deferred tax assets	852	870	722
Net deferred tax liabilities	1,010	780	977
Deferred Tax Liabilities, Net, Classification [Abstract]
Net deferred tax liabilities	(1,010)	(780)	(977)
Foreign [Member]
Deferred Tax Liabilities, Net, Classification [Abstract]
Current assets			57
Noncurrent assets	318	281	106
Current liabilities	(97)	(54)
State and Local Jurisdiction [Member]
Deferred Tax Liabilities, Net, Classification [Abstract]
Current assets	36
Current liabilities		(6)	(175)
Noncurrent Liabilities	$ (1,267)	$ (1,001)	$ (965)