Quarterly report pursuant to Section 13 or 15(d)

Other Non-Current Assets - Equity Method Investments (Details)

v3.19.3
Other Non-Current Assets - Equity Method Investments (Details)
3 Months Ended 9 Months Ended
Sep. 30, 2019
USD ($)
Sep. 30, 2018
USD ($)
Sep. 30, 2019
USD ($)
mi
Sep. 30, 2018
USD ($)
Dec. 31, 2018
USD ($)
May 31, 2018
USD ($)
Investment [Line Items]            
Loss on equity method investments $ 87,000,000   $ 87,000,000      
Equity method investment 73,000,000   73,000,000   $ 94,000,000  
Other revenues 2,170,000,000 $ 1,819,000,000 6,723,000,000 $ 5,604,000,000    
Accounts and other receivables 507,000,000   507,000,000   585,000,000  
Midship Holdings [Member]            
Investment [Line Items]            
Equity method investment 70,000,000   70,000,000   85,000,000  
O&M Services [Member] | Midship Pipeline [Member] | Service Agreements [Member]            
Investment [Line Items]            
Other revenues 2,000,000 $ 4,000,000 9,000,000 $ 8,000,000    
Accounts and other receivables 2,000,000   $ 2,000,000   $ 4,000,000  
CCL [Member] | Midship Pipeline [Member] | Natural Gas Transportation Agreement [Member]            
Investment [Line Items]            
Long-term Purchase Commitment, Period     10 years      
Midship Pipeline [Member]            
Investment [Line Items]            
Length of Natural Gas Pipeline | mi     200      
Midship Pipeline [Member] | CCL [Member] | Midship Pipeline Letter of Credit [Member]            
Investment [Line Items]            
Letter of Credit, Maximum Borrowing Capacity           $ 16,000,000
Letters of credit, outstanding amount $ 0   $ 0