Income Taxes (Narrative) (Details) (USD $)					6 Months Ended	12 Months Ended			36 Months Ended
	Dec. 31, 2012	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2012 Capital Loss Carryforward [Member]	Dec. 31, 2012 Brazilian Federal Revenue Service [Member] item	Jun. 30, 2007 Brazilian Federal Revenue Service [Member]	Jun. 30, 2006 Brazilian Federal Revenue Service [Member]	Jun. 30, 2004 Brazilian Federal Revenue Service [Member]	Jun. 30, 2006 Argentine Tax Authorities [Member]	Dec. 31, 2012 Foreign [Member]	Jun. 30, 2012 Foreign [Member]	Jun. 30, 2011 Foreign [Member]
Income Taxes [Line Items]
Tax assets related to net operating loss carry-forwards related to certain international subsidiaries	$ 344,000,000	$ 241,000,000	$ 220,000,000
Tax assets related to net operating loss carry-forwards related to certain international subsidiaries with no expiration date										321,000,000
Tax assets related to net operating loss carry-forwards related to certain international subsidiaries with expiration date										23,000,000
Valuation allowance recorded against tax assets related to net operating loss carry-forwards related to certain international subsidiaries										102,000,000	96,000,000	52,000,000
Tax assets related to net operating loss carry-forwards related to capital losses	25,000,000
Other Tax Carryforward, Valuation Allowance				15,000,000
Tax assets related to excess foreign tax credits	32,000,000	31,000,000	46,000,000
State tax attributes	79,000,000	67,000,000	57,000,000
Valuation allowance recorded against the excess foreign tax credits											4,000,000	7,000,000
Valuation allowance recorded against the state income tax assets	56,000,000	45,000,000	36,000,000
Approximate undistributed earnings of foreign subsidiaries and affiliated corporate joint venture companies accounted for on the equity method	7,700,000,000
Accrued interest and penalties on unrecognized tax benefits	17,000,000	16,000,000	27,000,000
Positive impact on the tax expense if the total amount of unrecognized tax benefits were recognized by the Company at one time	56,000,000
Number of separate tax assessments					3
Tax assessment received consisting of tax, penalty, and interest						83,000,000	20,000,000	474,000,000
Estimated further assessments that could be received					102,000,000
Tax assessment received									$ 63,000,000