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Commitments, Contingencies, Guarantees and Indemnities (Details) $ in Millions	12 Months Ended
	Dec. 31, 2020 USD ($) modernEngine
Unrecorded Unconditional Purchase Obligation [Line Items]
Purchase commitments	$ 471.0
Purchase commitment, settlement period	3 years
Capital Addition Purchase Commitments
Unrecorded Unconditional Purchase Obligation [Line Items]
Minimum quantity required under purchase obligation (in engines) | modernEngine	25
Capital Addition Purchase Commitments | Minimum
Unrecorded Unconditional Purchase Obligation [Line Items]
Purchase commitments	$ 67.1
Capital Addition Purchase Commitments | Maximum
Unrecorded Unconditional Purchase Obligation [Line Items]
Purchase commitments	$ 112.0

X

- Definition

Period covered by the long-term purchase commitment, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

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.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
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X

- Definition

The minimum number of units that must be purchased, in connection with an unconditional purchase obligation that has not been recognized for financial reporting purposes.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
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Period Type: