Quarterly report pursuant to Section 13 or 15(d)

Supplemental Guarantor Information - Condensed Consolidating Statements of Cash Flows (Details)

v3.19.1
Supplemental Guarantor Information - Condensed Consolidating Statements of Cash Flows (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Condensed Cash Flow Statements, Captions [Line Items]    
Net cash provided by (used in) operating activities $ 344 $ 331
Cash flows from investing activities    
Property, plant and equipment, net (283) (194)
Investments in subsidiaries 0 0
Distributions received from affiliates, net   0
Other (1) 0
Net cash used in investing activities (284) (194)
Cash flows from financing activities    
Distributions to parent 0 0
Contributions from parent 0 0
Distributions to owners (304) (249)
Net cash used in financing activities (304) (249)
Net increase (decrease) in cash, cash equivalents and restricted cash (244) (112)
Cash, cash equivalents and restricted cash—beginning of period 1,541 1,589
Cash, cash equivalents and restricted cash—end of period 1,297 1,477
Parent Issuer [Member]    
Condensed Cash Flow Statements, Captions [Line Items]    
Net cash provided by (used in) operating activities 404 (10)
Cash flows from investing activities    
Property, plant and equipment, net 0 0
Investments in subsidiaries (218) (38)
Distributions received from affiliates, net   167
Other 0  
Net cash used in investing activities (218) 129
Cash flows from financing activities    
Distributions to parent 0 0
Contributions from parent 0 0
Distributions to owners (304) (249)
Net cash used in financing activities (304) (249)
Net increase (decrease) in cash, cash equivalents and restricted cash (118) (130)
Cash, cash equivalents and restricted cash—beginning of period 779 1,033
Cash, cash equivalents and restricted cash—end of period 661 903
Guarantors [Member]    
Condensed Cash Flow Statements, Captions [Line Items]    
Net cash provided by (used in) operating activities 364 135
Cash flows from investing activities    
Property, plant and equipment, net (5) (5)
Investments in subsidiaries (164) 0
Distributions received from affiliates, net   0
Other 0  
Net cash used in investing activities (169) (5)
Cash flows from financing activities    
Distributions to parent (404) (167)
Contributions from parent 218 38
Distributions to owners 0 0
Net cash used in financing activities (186) (129)
Net increase (decrease) in cash, cash equivalents and restricted cash 9 1
Cash, cash equivalents and restricted cash—beginning of period 6 12
Cash, cash equivalents and restricted cash—end of period 15 13
Non-Guarantors [Member]    
Condensed Cash Flow Statements, Captions [Line Items]    
Net cash provided by (used in) operating activities 213 206
Cash flows from investing activities    
Property, plant and equipment, net (280) (189)
Investments in subsidiaries 0 0
Distributions received from affiliates, net   0
Other (1)  
Net cash used in investing activities (281) (189)
Cash flows from financing activities    
Distributions to parent (231) 0
Contributions from parent 164 0
Distributions to owners 0 0
Net cash used in financing activities (67) 0
Net increase (decrease) in cash, cash equivalents and restricted cash (135) 17
Cash, cash equivalents and restricted cash—beginning of period 756 544
Cash, cash equivalents and restricted cash—end of period 621 561
Eliminations [Member]    
Condensed Cash Flow Statements, Captions [Line Items]    
Net cash provided by (used in) operating activities (637) 0
Cash flows from investing activities    
Property, plant and equipment, net 2 0
Investments in subsidiaries 382 38
Distributions received from affiliates, net   (167)
Other 0  
Net cash used in investing activities 384 (129)
Cash flows from financing activities    
Distributions to parent 635 167
Contributions from parent (382) (38)
Distributions to owners 0 0
Net cash used in financing activities 253 129
Net increase (decrease) in cash, cash equivalents and restricted cash 0 0
Cash, cash equivalents and restricted cash—beginning of period 0 0
Cash, cash equivalents and restricted cash—end of period $ 0 $ 0