The base principal amount of debt on which the conversion ratio is calculated.

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The amount by which the fair value of the entity's long-term debt exceeds the carrying value.

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No definition available.

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Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days.

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Description of a feature that permits the issuer of the debt to repay or convert it before the stated maturity date (early retirement date). The description may include such items as the call price, the period that the issuer can call the debt, including the earliest call date, and other significant terms of the call feature, which may include the debt holders' ability to convert the debt to equity if the call option is exercised and contingent events that trigger the issuer's ability to call the debt.

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Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Date the debt instrument was issued, in CCYY-MM-DD format.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Fair value amount of debt instrument that was repurchased.

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No definition available.

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Face (par) amount of the original debt instrument that was repurchased.

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No definition available.

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Fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as a liability.

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Gross amount of debt extinguished.

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No definition available.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Amount of cash outflow for cost from early extinguishment and prepayment of debt. Includes, but is not limited to, third-party cost, premium paid, and other fee paid to lender directly for debt extinguishment or debt prepayment. Excludes accrued interest.

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The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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Debt And Financing Arrangements (Narrative) (Details)					3 Months Ended		9 Months Ended
Debt And Financing Arrangements (Narrative) (Details)	Sep. 28, 2020 USD ($)	Aug. 26, 2020 USD ($)	Jun. 30, 2020 USD ($)	Mar. 27, 2020 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 23, 2020 USD ($)	Dec. 31, 2019 USD ($)
Debt Instrument [Line Items]
Debt Instrument, Issuance Date				Mar. 27, 2020
Gain (Loss) on Extinguishment of Debt					$ 396,000,000	$ 0	$ 410,000,000	$ 0
Excess of fair value over carrying value of long-term debt					2,200,000,000		2,200,000,000
Line of Credit [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity					10,700,000,000		10,700,000,000
Unused lines of credit					9,100,000,000		9,100,000,000
Commercial Paper [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity					5,000,000,000.0		5,000,000,000.0
Commercial Paper					0		0
Accounts Receivable Securitization Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity					1,800,000,000		1,800,000,000
Unused lines of credit					400,000,000		400,000,000
Debentures [Member]
Debt Instrument [Line Items]
Debt Instrument, Repurchased Face Amount									$ 665,000,000
Debt Instrument, Repurchase Amount									$ 933,000,000
Payment for Debt Extinguishment or Debt Prepayment Cost					374,000,000
Other Long Term Debt [Member]
Debt Instrument [Line Items]
Extinguishment of Debt, Amount	$ 100,000,000
Payment for Debt Extinguishment or Debt Prepayment Cost					3,000,000
Notes Three Point Three Seventy-Five Due in 2022 [Member]
Debt Instrument [Line Items]
Extinguishment of Debt, Amount	$ 400,000,000
Debt Instrument, Interest Rate, Stated Percentage	3.375%
Payment for Debt Extinguishment or Debt Prepayment Cost					19,000,000
Bonds Zero Percent Due in 2023 [Member]
Debt Instrument [Line Items]
Debt Instrument, Issuance Date		Aug. 26, 2020
Debt Instrument, Face Amount		$ 300,000,000
Debt Instrument, Convertible, Conversion Ratio		50,597.0453
Debt Instrument Convertible Conversion Ratio Basis Principal Amount		$ 200,000
Debt Instrument, Call Feature		Effective February 26, 2022, ADM Ag has the option to call the outstanding Bonds at their principal amount if the value of the Exchange Property per Bond exceeds 120% of the principal amount for 20 consecutive trading days.
Debt Instrument, Interest Rate, Stated Percentage		0.00%
Notes Four Point Four Seventy-Nine Percent Due in 2021 [Member]
Debt Instrument [Line Items]
Extinguishment of Debt, Amount			$ 495,000,000
Debt Instrument, Interest Rate, Stated Percentage			4.479%
Payment for Debt Extinguishment or Debt Prepayment Cost							14,000,000
Notes Two Point Seventy-Five Percent Due in 2025 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount				$ 500,000,000
Debt Instrument, Interest Rate, Stated Percentage				2.75%
Proceeds from Issuance of Unsecured Debt				$ 492,000,000
Notes Three Point Twenty-Five Percent Due in 2030 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount				$ 1,000,000,000.0
Debt Instrument, Interest Rate, Stated Percentage				3.25%
Proceeds from Issuance of Unsecured Debt				$ 988,000,000
Not Designated as Hedging Instrument [Member]
Debt Instrument [Line Items]
Embedded Derivative, Fair Value of Embedded Derivative Liability					32,000,000		32,000,000			$ 0
Not Designated as Hedging Instrument [Member] \| Bonds Zero Percent Due in 2023 [Member]
Debt Instrument [Line Items]
Embedded Derivative, Fair Value of Embedded Derivative Liability					$ 32,000,000		$ 32,000,000