Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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- Definition

Percentage of Aggregate Cost Exposed to Fluctuations in the Euro Exchange Rate.

+ References

No definition available.

+ Details

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- Definition

Purchase Contract, Deposit.

+ References

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- 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.

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- Definition

Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of foreign currency derivatives not designated as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624171-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5618551-113959

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- Definition

The minimum amount the entity agreed to spend under the long-term purchase commitment.

+ References

No definition available.

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- Details

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- Details

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Fair Value Measurements and Derivative Instruments - Derivative Instruments (Details) € in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)	Mar. 31, 2016 EUR (€)	Dec. 31, 2015 USD ($)
Gains and losses from derivatives involved in hedging relationships
Percentage of aggregate cost exposed to fluctuations in the euro exchange rate	58.00%		58.00%	58.00%
Interest rate swaps
Gains and losses from derivatives involved in hedging relationships
Notional amount	$ 4,300.0			$ 4,300.0
Forward Contracts
Gains and losses from derivatives involved in hedging relationships
Change in fair value of foreign currency forward contracts recognized in earnings	15.4	$ (28.1)
Forward Contracts \| Not Designated
Gains and losses from derivatives involved in hedging relationships
Notional amount	516.2
Foreign exchange contracts
Gains and losses from derivatives involved in hedging relationships
Notional amount	3,600.0			$ 2,400.0
Cruise ships on order
Gains and losses from derivatives involved in hedging relationships
Aggregate cost of ships on order, not including TUI cruises and Project Edge ships on order	8,000.0
Amount deposited for cost of ships on order, including the conditional agreement for a third Quantum - class ship	554.1
TUI Cruises \| Forward Contracts \| Designated as Hedging Instrument
Gains and losses from derivatives involved in hedging relationships
Notional amount	$ 309.9		€ 272.0