Commitments and Contingencies (Details) - USD ($) $ in Millions	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Loss Contingency [Abstract]
Loss contingency estimate	$ 900
Warranty [Abstract]
Beginning balance	5,702	$ 5,137
Payments made during the period	(2,913)	(3,395)
Changes in accrual related to warranties issued during the period	2,419	2,180
Changes in accrual related to pre-existing warranties	1,451	1,355
Foreign currency translation and other	(75)	(57)
Ending balance	6,584	$ 5,220
Financial Guarantee [Member]
Guarantor Obligations [Line Items]
Maximum potential payments	437		$ 162
Carrying value of recorded liabilities related to guarantees and limited indemnities	40		33
Indemnification Agreement [Member]
Guarantor Obligations [Line Items]
Maximum potential payments	266		587
Carrying value of recorded liabilities related to guarantees and limited indemnities	59		$ 200
Guarantees to daily rental companies
Guarantor Obligations [Line Items]
Maximum potential payments	260
Carrying value of recorded liabilities related to guarantees and limited indemnities	$ 58

The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees.

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Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

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Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

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Amount of increase (decrease) in the standard and extended product warranty accrual from changes in estimates attributable to preexisting product warranties.

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Amount of increase in the standard and extended product warranty accrual from warranties issued.

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Amount of foreign currency translation gain (loss) which decreases (increases) the standard and extended product warranty accrual.

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