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Interest expense incurred on trading liabilities, commercial paper, long-term debt, capital leases, deposits, and all other borrowings excluding those from Financial Products line of business

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Interest expense incurred on trading liabilities, commercial paper, long-term debt, capital leases, deposits, and all other borrowings from Financial Products line of business

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The aggregate cost of goods produced and sold and services rendered during the reporting period.

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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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The portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments representing (a) the amount of the hedge ineffectiveness and (b) the amount, if any, excluded from the assessment of hedge effectiveness.

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Amount, before tax and reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness.

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Amount, before tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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Derivative financial instruments and risk management (Details 4) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Amount of the line items in Statement 1 [Abstract]
Interest expense of Financial Products									$ 754	$ 722	$ 646
Other income (expense)									(57)	(67)	153
Sales and revenues	$ 13,144	$ 12,758	$ 14,432	$ 13,466	$ 14,342	$ 13,510	$ 14,011	$ 12,859	53,800	54,722	45,462
Interest Expense Excluding Financial Products									421	404	531
Cost of goods sold	$ 9,117	$ 8,569	$ 9,941	$ 9,003	$ 9,987	$ 9,022	$ 9,422	$ 8,566	36,630	36,997	31,260
Financial Products
Amount of the line items in Statement 1 [Abstract]
Sales and revenues									3,045	2,900
Designated derivatives \| Cash Flow Hedges
Derivative Instruments, Gain (Loss)
Amount of Gains (Losses) Recognized in AOCI									57	80	(5)
Amount of Gains (Losses) Reclassified from AOCI									66	131	(121)
Amount of the line items in Statement 1 [Abstract]
Recognized in Earnings (Ineffective Portion)										0	0
Designated derivatives \| Cash Flow Hedges \| Foreign exchange contracts \| Machinery, Energy & Transportation
Derivative Instruments, Gain (Loss)
Amount of Gains (Losses) Recognized in AOCI									34	(47)	72
Designated derivatives \| Cash Flow Hedges \| Foreign exchange contracts \| Machinery, Energy & Transportation \| Sales
Derivative Instruments, Gain (Loss)
Amount of Gains (Losses) Reclassified from AOCI									11
Designated derivatives \| Cash Flow Hedges \| Foreign exchange contracts \| Machinery, Energy & Transportation \| Cost of goods sold
Derivative Instruments, Gain (Loss)
Amount of Gains (Losses) Reclassified from AOCI									(3)
Designated derivatives \| Cash Flow Hedges \| Foreign exchange contracts \| Machinery, Energy & Transportation \| Other Income (Expense)
Derivative Instruments, Gain (Loss)
Amount of Gains (Losses) Reclassified from AOCI										(33)	(40)
Amount of the line items in Statement 1 [Abstract]
Recognized in Earnings (Ineffective Portion)										0	0
Designated derivatives \| Cash Flow Hedges \| Foreign exchange contracts \| Financial Products
Derivative Instruments, Gain (Loss)
Amount of Gains (Losses) Recognized in AOCI									93	165	(77)
Designated derivatives \| Cash Flow Hedges \| Foreign exchange contracts \| Financial Products \| Other Income (Expense)
Derivative Instruments, Gain (Loss)
Amount of Gains (Losses) Reclassified from AOCI									37	148	(81)
Amount of the line items in Statement 1 [Abstract]
Recognized in Earnings (Ineffective Portion)									0		0
Designated derivatives \| Cash Flow Hedges \| Foreign exchange contracts \| Financial Products \| Interest expense
Derivative Instruments, Gain (Loss)
Amount of Gains (Losses) Reclassified from AOCI									33	19	6
Amount of the line items in Statement 1 [Abstract]
Recognized in Earnings (Ineffective Portion)										0	0
Designated derivatives \| Cash Flow Hedges \| Interest rate contracts \| Machinery, Energy & Transportation
Derivative Instruments, Gain (Loss)
Amount of Gains (Losses) Recognized in AOCI									0	0	0
Designated derivatives \| Cash Flow Hedges \| Interest rate contracts \| Machinery, Energy & Transportation \| Interest expense
Derivative Instruments, Gain (Loss)
Amount of Gains (Losses) Reclassified from AOCI									(4)	(3)	(9)
Amount of the line items in Statement 1 [Abstract]
Recognized in Earnings (Ineffective Portion)										0	0
Designated derivatives \| Cash Flow Hedges \| Interest rate contracts \| Financial Products
Derivative Instruments, Gain (Loss)
Amount of Gains (Losses) Recognized in AOCI									(70)	(38)	0
Designated derivatives \| Cash Flow Hedges \| Interest rate contracts \| Financial Products \| Interest expense
Derivative Instruments, Gain (Loss)
Amount of Gains (Losses) Reclassified from AOCI									(8)	0	3
Amount of the line items in Statement 1 [Abstract]
Recognized in Earnings (Ineffective Portion)										0	0
Undesignated derivatives
Amount of the line items in Statement 1 [Abstract]
Gains (Losses) on Derivatives Not Designated as Hedging Instruments									(6)	(74)	111
Undesignated derivatives \| Foreign exchange contracts \| Machinery, Energy & Transportation \| Other Income (Expense)
Amount of the line items in Statement 1 [Abstract]
Gains (Losses) on Derivatives Not Designated as Hedging Instruments									13	(54)	72
Undesignated derivatives \| Foreign exchange contracts \| Financial Products \| Other Income (Expense)
Amount of the line items in Statement 1 [Abstract]
Gains (Losses) on Derivatives Not Designated as Hedging Instruments									(37)	19	9
Undesignated derivatives \| Commodity contracts \| Machinery, Energy & Transportation \| Other Income (Expense)
Amount of the line items in Statement 1 [Abstract]
Gains (Losses) on Derivatives Not Designated as Hedging Instruments									$ 18	$ (39)	$ 30