Annual report pursuant to Section 13 and 15(d)

Schedule I - Condensed Financial Information of Registrant - Condensed Balance Sheet (Details)

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Schedule I - Condensed Financial Information of Registrant - Condensed Balance Sheet (Details) - USD ($)
$ in Millions
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Current assets        
Cash and cash equivalents $ 0 $ 0    
Restricted cash 1,589 605    
Total current assets 2,139 958    
Property, plant and equipment, net 15,139 14,158    
Debt issuance and deferred financing costs, net 38 121    
Non-current derivative assets 31 83    
Total assets 17,553 15,542    
Current liabilities        
Accrued interest costs and related debt fees 253 205    
Derivative liabilities 0 14    
Total current liabilities 829 856    
Long-term debt, net 16,046 14,209    
Partners’ equity 639 443 $ 713 $ 1,131
Total liabilities and partners’ equity 17,553 15,542    
Parent Company [Member]        
Current assets        
Cash and cash equivalents 0 0    
Restricted cash 1,033 234    
Prepaid expenses and other 8 0    
Total current assets 1,041 234    
Property, plant and equipment, net 80 79    
Debt issuance and deferred financing costs, net 20 63    
Investment in affiliates 2,076 2,617    
Non-current derivative assets 14 16    
Total assets 3,231 3,009    
Current liabilities        
Accrued interest costs and related debt fees 23 1    
Derivative liabilities 0 3    
Other current liabilities 0 2    
Total current liabilities 23 6    
Long-term debt, net 2,569 2,560    
Partners’ equity 639 443    
Total liabilities and partners’ equity $ 3,231 $ 3,009