Other (Income) Expense - Net (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2015	Dec. 31, 2014		Dec. 31, 2013
Other Income and Expenses [Line Items]
Equity Sold, Percentage		50.00%
(Gain) loss on sale and revaluation of assets			$ (572)	$ (351)		$ (41)
Debt purchase transaction costs	$ 7		7
Realized gains on sales of available-for-sale marketable securities						8
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities			0	6	[1]	$ 166	[1]
Various assets [Member]
Other Income and Expenses [Line Items]
(Gain) loss on sale and revaluation of assets			(256)
Investments In Affiliates [Member]
Other Income and Expenses [Line Items]
(Gain) loss on sale and revaluation of assets			$ (212)
Barcarena [Member]
Other Income and Expenses [Line Items]
Equity Sold, Percentage			50.00%
(Gain) loss on sale and revaluation of assets			$ (62)
Pacificor [Member]
Other Income and Expenses [Line Items]
(Gain) loss on sale and revaluation of assets				(156)
Fertilizer
Other Income and Expenses [Line Items]
(Gain) loss on sale and revaluation of assets				$ (126)
Sugar ethanol facility [Member]
Other Income and Expenses [Line Items]
Loss Contingency, Loss in Period			$ 45

[1] Asset impairment charge - equity securities for the fiscal year ended December 31, 2014 consisted of other-than-temporary investment writedowns of available for sale securities in Corporate. Asset impairment charge - equity securities for the fiscal year ended December 31, 2013 consisted 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.