v3.19.1
Debt (Letter of Credit) (Details) - USD ($)
$ in Millions
Mar. 31, 2019
Dec. 31, 2018
Line of Credit Facility [Line Items]    
Letters of Credit Outstanding, Amount $ 1,201 $ 1,365
Revolving Credit Facility [Member]    
Line of Credit Facility [Line Items]    
Letters of Credit Outstanding, Amount [1] 537 693
CDH [Member]    
Line of Credit Facility [Line Items]    
Letters of Credit Outstanding, Amount [2] 225 251
Various Project Financing Facilities [Member]    
Line of Credit Facility [Line Items]    
Letters of Credit Outstanding, Amount 243 228
Other Corporate Facilities [Member]    
Line of Credit Facility [Line Items]    
Letters of Credit Outstanding, Amount [3] $ 196 $ 193
[1] The Corporate Revolving Facility represents our primary revolving facility. On April 5, 2019, we amended our Corporate Revolving Facility to increase the capacity by approximately $330 million from $1.69 billion to approximately $2.02 billion.
[2] Pursuant to the terms and conditions of the CDHI credit agreement, the capacity under the CDHI letter of credit facility will be reduced to $125 million on June 30, 2019. The decrease in capacity will not have a material effect on our liquidity as alternative sources of liquidity are available.
[3] We have two unsecured letter of credit facilities with third party financial institutions totaling $200 million at March 31, 2019. On May 6, 2019, we entered into a new unsecured letter of credit facility which increased the total capacity available to us by approximately $100 million.