Commitments, Contingencies, Guarantees and Indemnities (Details 2) (Engines Aircraft and Related Equipment [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014
Engines Aircraft and Related Equipment [Member]
Purchase commitments
Purchase price	$ 9.5

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

No definition available.

Name:	us-gaap_LongTermPurchaseCommitmentAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration