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Contingencies (Narrative) (Details) - USD ($)		1 Months Ended	3 Months Ended			9 Months Ended
	Mar. 09, 2020	Jul. 31, 2019	Sep. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Loss Contingencies [Line Items]
Decline in backlog as a result of potential contract termination	$ 150,000,000
Loss of hire insurance, per day						$ 602,500
Loss Contingency, Damages Sought, Value		$ 100,000,000
Maximum Contingent Contributions To Joint Venture			$ 1,250,000,000			1,250,000,000
Gain (Loss) Related to Litigation Settlement				$ 20,300,000
Letters of credit outstanding, amount			123,100,000			123,100,000
OTHER OPERATING INCOME			$ 118,100,000		$ 0	$ 118,100,000	$ 0
Middle East & Africa
Loss Contingencies [Line Items]
Proceeds from Legal Settlements							$ 27,500,000

X

- Definition

Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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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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- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

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The total amount of other operating income, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operation.

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Cash received for the settlement of litigation during the current period.

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Decline in backlog as a result of potential contract termination

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Loss of Hire Insurance, Per Day

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Maximum Contingent Contributions To Joint Venture

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