Annual report pursuant to Section 13 and 15(d)

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

v3.10.0.1
Supplemental Guarantor Information - Condensed Consolidating Statements of Cash Flows (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Condensed Cash Flow Statements, Captions [Line Items]      
Net cash provided by (used in) operating activities $ 1,874 $ 977 $ 0
Cash flows from investing activities      
Property, plant and equipment, net (804) (1,290) (2,315)
Investments in subsidiaries 0 0 0
Distributions received from affiliates, net 0 0 0
Other 0 0 (38)
Net cash provided by (used in) investing activities (804) (1,290) (2,353)
Cash flows from financing activities      
Proceeds from issuances of debt 1,100 3,814 8,003
Repayments of debt (1,090) (2,173) (5,251)
Debt issuance and deferred financing costs (8) (50) (115)
Debt extinguishment costs (7) 0 (14)
Distributions to parent 0 0 0
Contributions from parent 0 0 0
Distributions to owners (1,113) (294) (99)
Net cash provided by (used in) financing activities (1,118) 1,297 2,524
Net increase (decrease) in cash, cash equivalents and restricted cash (48) 984 171
Cash, cash equivalents and restricted cash—beginning of period 1,589 605 434
Cash, cash equivalents and restricted cash—end of period 1,541 1,589 605
Parent Issuer [Member]      
Condensed Cash Flow Statements, Captions [Line Items]      
Net cash provided by (used in) operating activities 714 (101) (53)
Cash flows from investing activities      
Property, plant and equipment, net 0 0 0
Investments in subsidiaries (304) (245) (2,429)
Distributions received from affiliates, net 454 1,431 218
Other     0
Net cash provided by (used in) investing activities 150 1,186 (2,211)
Cash flows from financing activities      
Proceeds from issuances of debt 1,100 1,500 2,560
Repayments of debt (1,090) (1,470) 0
Debt issuance and deferred financing costs (8) (22) (73)
Debt extinguishment costs (7)   0
Distributions to parent 0 0 0
Contributions from parent 0 0 0
Distributions to owners (1,113) (294) (99)
Net cash provided by (used in) financing activities (1,118) (286) 2,388
Net increase (decrease) in cash, cash equivalents and restricted cash (254) 799 124
Cash, cash equivalents and restricted cash—beginning of period 1,033 234 110
Cash, cash equivalents and restricted cash—end of period 779 1,033 234
Guarantors [Member]      
Condensed Cash Flow Statements, Captions [Line Items]      
Net cash provided by (used in) operating activities 569 431 181
Cash flows from investing activities      
Property, plant and equipment, net (34) (21) (7)
Investments in subsidiaries (129) (7) (1)
Distributions received from affiliates, net 537 782 0
Other     (6)
Net cash provided by (used in) investing activities 374 754 (14)
Cash flows from financing activities      
Proceeds from issuances of debt 0 0 0
Repayments of debt 0 0 (2,486)
Debt issuance and deferred financing costs 0 0 0
Debt extinguishment costs 0   (14)
Distributions to parent (1,253) (1,431) (218)
Contributions from parent 304 245 2,429
Distributions to owners 0 0 0
Net cash provided by (used in) financing activities (949) (1,186) (289)
Net increase (decrease) in cash, cash equivalents and restricted cash (6) (1) (122)
Cash, cash equivalents and restricted cash—beginning of period 12 13 135
Cash, cash equivalents and restricted cash—end of period 6 12 13
Non-Guarantors [Member]      
Condensed Cash Flow Statements, Captions [Line Items]      
Net cash provided by (used in) operating activities 1,423 657 (130)
Cash flows from investing activities      
Property, plant and equipment, net (771) (1,279) (2,306)
Investments in subsidiaries 0 0 0
Distributions received from affiliates, net 0 0 0
Other     (32)
Net cash provided by (used in) investing activities (771) (1,279) (2,338)
Cash flows from financing activities      
Proceeds from issuances of debt 0 2,314 5,443
Repayments of debt 0 (703) (2,765)
Debt issuance and deferred financing costs 0 (28) (42)
Debt extinguishment costs 0   0
Distributions to parent (569) (782) 0
Contributions from parent 129 7 1
Distributions to owners 0 0 0
Net cash provided by (used in) financing activities (440) 808 2,637
Net increase (decrease) in cash, cash equivalents and restricted cash 212 186 169
Cash, cash equivalents and restricted cash—beginning of period 544 358 189
Cash, cash equivalents and restricted cash—end of period 756 544 358
Eliminations [Member]      
Condensed Cash Flow Statements, Captions [Line Items]      
Net cash provided by (used in) operating activities (832) (10) 2
Cash flows from investing activities      
Property, plant and equipment, net 1 10 (2)
Investments in subsidiaries 433 252 2,430
Distributions received from affiliates, net (991) (2,213) (218)
Other     0
Net cash provided by (used in) investing activities (557) (1,951) 2,210
Cash flows from financing activities      
Proceeds from issuances of debt 0 0 0
Repayments of debt 0 0 0
Debt issuance and deferred financing costs 0 0 0
Debt extinguishment costs 0   0
Distributions to parent 1,822 2,213 218
Contributions from parent (433) (252) (2,430)
Distributions to owners 0 0 0
Net cash provided by (used in) financing activities 1,389 1,961 (2,212)
Net increase (decrease) in cash, cash equivalents and restricted cash 0 0 0
Cash, cash equivalents and restricted cash—beginning of period 0 0 0
Cash, cash equivalents and restricted cash—end of period $ 0 $ 0 $ 0