| **Commitments and Contingencies (Details)**                                                                       | 3 Months Ended | 12 Months Ended | 0 Months Ended | 12 Months Ended |        |            |            |            | 12 Months Ended |            | 12 Months Ended |
|-------------------------------------------------------------------------------------------------------------------|----------------|-----------------|----------------|-----------------|--------|------------|------------|------------|-----------------|------------|-----------------|
||
| **Loss Contingencies [Line Items]**                                                                               |           |            |           |            |   |       |       |       |            |       |            |   |   |   |   |   |   |
| Length of Agreement                                                                                               | 3              |            |           |            |   |       |       |       |            |       |            |   |   |   |   |   |   |
| Length Of Potential Automatic Extension Years                                                                     | 1              |            |           |            |   |       |       |       |            |       |            |   |   |   |   |   |   |
| Operating Agreement Excess Loss Percentage                                                                        |           |            |           |            |   |       |       |       |            |       |            |   |   | 10.00% |   |   |   |
| Off Balance Sheet Finance Receivables                                                                             |           |            |           |            |   |       |       |       |            |       |            |   |   | $ 1,200,000,000 | $ 723,000,000 |   |   |
| Off Balance Sheet Finance Receivables Related Originations                                                        |           |            |           |            |   |       |       |       |            |       |            |   |   | 1,600,000,000 | 818,000,000 |   |   |
| Historical losses on finance receivables, measured as percentage of average balance of related finance receivable |           |            |           |            |   |       |       |       |            |       |            |   |   |   |   | 0.30% | 2.10% |
| Available stand-by letters of credit and surety bonds                                                             |           | 69,000,000      |           |            |   |       |       |       |            |       |            |   |   |   |   |   |   |
| Line of Credit Facility, Remaining Borrowing Capacity                                                             |           | 34,000,000      |           |            |   |       |       |       |            |       |            |   |   |   |   |   |   |
| Purchase commitments                                                                                              |           | 65,000,000      |           |            |   |       |       |       |            |       |            |   |   |   |   |   |   |
| Long Term Purchase Commitment Cancellation Fees                                                                   |           | 49,000,000      |           |            |   |       |       |       |            |       |            |   |   |   |   |   |   |
| Number of Contaminated Sites                                                                                      |           | 3               |           |            |   |       |       |       |            |       |            |   |   |   |   |   |   |
| Number of Contaminated Sites in Sao Paulo, Brazil                                                                 |           | 2               |           |            |   |       |       |       |            |       |            |   |   |   |   |   |   |
| Accrual for environmental loss contingencies                                                                      |           | 21,000,000      |           |            |   |       |       |       |            |       |            |   |   |   |   |   |   |
| Damages sought, value                                                                                             |           |            | 1,000,000      | 2,000,000       | 0      | 10,850,000 | 42,000,000 |       |            |       |            |   | 34,000,000 |   |   |   |   |
| Potential patent infringement, number of patents                                                                  |           |            |           |            |   |       |       |       |            |       |            | 3 |   |   |   |   |   |
| Estimate of possible loss                                                                                         |           |            |           |            |   |       | 16,000,000 | 36,000,000 | 74,000,000      | 70,000,000 |            |   |   |   |   |   |   |
| Notice of Violation, number                                                                                       |           |            |           |            |   |       |       |       |            |       | 7,600           |   |   |   |   |   |   |
| Maximum Non-Conformance Penalty per unit                                                                          |           | $ 3,775         |           |            |   |       |       |       |            |       |            |   |   |   |   |   |   |

| X                                                                                                                                                                                                                                                                                                                                                                                             |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Historic Losses On Finance Receivables Measured As Percentage Of Average Balance Of Related Finance Receivable
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| X                                                                                                                                                                                                                               |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Length of Agreement
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| X                                                                                                                                                                                                                                                                                |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Length Of Potential Automatic Extension Years
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| X                                                                                                                                                                                                                                                                              |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Long Term Purchase Commitment Cancellation Fees
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| X                                                                                                                                                                                                                                                                                                            |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Loss Contingency, Potential Patent Infringement, Number of Patents
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| X                                                                                                                                                                                                                                                             |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Maximum Non-Conformance Penalty per unit
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| X                                                                                                                                                                                                                                                      |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Notice of Violation, number of engines
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| X                                                                                                                                                                                                                                     |
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| - Definition
Number of Contaminated Sites
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| X                                                                                                                                                                                                                                                                          |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Number of Contaminated Sites in Sao Paulo, Brazil
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| X                                                                                                                                                                                                                                                       |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Off Balance Sheet Finance Receivables
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| X                                                                                                                                                                                                                                                                                               |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Off Balance Sheet Finance Receivables Related Originations
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| X                                                                                                                                                                                                                                                               |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Operating Agreement Excess Loss Percentage
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Total costs accrued as of the balance sheet date for environmental loss contingencies.
+ References
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| - Definition
The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).
+ References
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The minimum amount the entity agreed to spend under the long-term purchase commitment.
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The value (monetary amount) of the award the plaintiff seeks in the legal matter.
+ References
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.
+ References
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