Assets and Liabilities Held for Sale Assets and Liabilities Held for Sale (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Trade Receivables Held-for-sale, Net	$ 94us-gaap_TradeReceivablesHeldForSaleNet
Inventories Held-for-sale	742
Disposal Group, Including Discontinued Operation, Prepaid and Other Assets, Current	83
Other Assets Held-for-sale, Current	19
Disposal Group, Including Discontinued Operation, Goodwill, Current	63
Disposal Group, Including Discontinued Operation, Intangible Assets, Current	28
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Current	374
Current assets held for sale	1,403	0
Disposal Group, Including Discontinued Operation, Accounts Payable, Current	114
Disposal Group, Including Discontinued Operation, Accrued Liabilities, Current	110
Disposal Group, Including Discontinued Operation, Other Liabilities, Current	6
Current liabilities held for sale	230	0
Chocolate [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from Divestiture of Businesses	440
Transportation [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from Divestiture of Businesses	$ 1,300

Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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Amount classified as accounts payable attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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Amount classified as accrued liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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Amount classified as goodwill attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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Amount classified as intangible assets, excluding goodwill, attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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Amount classified as other assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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Amount classified as prepaid and other assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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Amount classified as property, plant and equipment attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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Amount classified as inventory attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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Amount classified as liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

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Amount classified as trade receivables attributable to disposal group held for sale or disposed of.

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