Quarterly report pursuant to Section 13 or 15(d)

Supplemental Guarantor Information - Condensed Consolidating Cash Flows - Balances per Condensed Consolidating Balance Sheet (Details)

v3.20.1
Supplemental Guarantor Information - Condensed Consolidating Cash Flows - Balances per Condensed Consolidating Balance Sheet (Details) - USD ($)
$ in Millions
Mar. 31, 2020
Dec. 31, 2019
Mar. 31, 2019
Dec. 31, 2018
Balances per Consolidated Balance Sheet:        
Cash and cash equivalents $ 1,734 $ 1,781    
Restricted cash 109 181    
Total cash, cash equivalents and restricted cash 1,843 1,962 $ 1,297 $ 1,541
Parent Issuer [Member]        
Balances per Consolidated Balance Sheet:        
Cash and cash equivalents 1,731 1,778    
Restricted cash 0 0    
Total cash, cash equivalents and restricted cash 1,731 1,778 661 779
Guarantors [Member]        
Balances per Consolidated Balance Sheet:        
Cash and cash equivalents 3 3    
Restricted cash 0 0    
Total cash, cash equivalents and restricted cash 3 3 15 6
Non-Guarantors [Member]        
Balances per Consolidated Balance Sheet:        
Cash and cash equivalents 0 0    
Restricted cash 109 181    
Total cash, cash equivalents and restricted cash 109 181 621 756
Eliminations [Member]        
Balances per Consolidated Balance Sheet:        
Cash and cash equivalents 0 0    
Restricted cash 0 0    
Total cash, cash equivalents and restricted cash $ 0 $ 0 $ 0 $ 0