Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Details)

v2.4.0.6
Commitments and Contingencies (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Loss Contingencies [Line Items]  
Restricted net assets of consolidated subsidiaries $ 972.4
Bechtel EPC Contract - Train One And Two [Member]
 
Loss Contingencies [Line Items]  
Oil and Gas Delivery Commitments and Contracts, Royalty Guarantees, Amount 3,900.0
Bechtel EPC Contract - Train Three And Four [Member]
 
Loss Contingencies [Line Items]  
Long-term Purchase Commitment, Amount 3,769
Lump sum payment, termination prior to issuance of notice to proceed 5.0
Minimum [Member] | Bechtel EPC Contract - Train Three And Four [Member]
 
Loss Contingencies [Line Items]  
Lump sum payment, termination prior to issuance of notice to proceed 1.0
Minimum [Member] | Royalty Agreements [Member]
 
Loss Contingencies [Line Items]  
Oil and Gas Delivery Commitments and Contracts, Royalty Guarantees, Amount 2.0
Maximum [Member] | Bechtel EPC Contract - Train One And Two [Member]
 
Loss Contingencies [Line Items]  
Lump sum payment, termination prior to issuance of notice to proceed 30.0
Maximum [Member] | Bechtel EPC Contract - Train Three And Four [Member]
 
Loss Contingencies [Line Items]  
Lump sum payment, termination after issuance of notice to proceed 30.0
Lump sum payment, termination prior to issuance of notice to proceed 2.5
Maximum [Member] | Royalty Agreements [Member]
 
Loss Contingencies [Line Items]  
Oil and Gas Delivery Commitments and Contracts, Royalty Guarantees, Amount $ 11.0