Other (Income) Expense - Net (Narrative) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended			12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011		Dec. 31, 2013		Dec. 31, 2012		Jun. 30, 2012		Jun. 30, 2011
Other Income and Expenses [Abstract]
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain	$ 0	$ 0		$ 0		$ 0		$ 0		$ 71
Gain related to the sale of exchange membership interests	39					39
Additional ownership interest acquired, percentage										50.00%
Realized gains on sales of available-for-sale marketable securities	8	17		8		29		38		13
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities		$ 13	[1]	$ 166	[1]	$ 12	[1]	$ 25	[1]

[1] Asset impairment charge - equity securities for the fiscal year ended December 31, 2013 consist of other-than-temporary impairment charges of $155 million on the Company's GrainCorp investment in the Agricultural Services segment and $11 million on one other available for sale security in Corporate. Asset impairment charge - equity securities for the year ended December 31, 2012, the six months ended December 31, 2011, and the year ended June 30, 2012 consist of other-than-temporary investment writedowns in Corporate.