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Annual report pursuant to Section 13 and 15(d)

Schedule I - Condensed Financial Information of Registrant (PARENT ONLY) - STATEMENTS OF CASH FLOWS (Details)

v3.8.0.1
Schedule I - Condensed Financial Information of Registrant (PARENT ONLY) - STATEMENTS OF CASH FLOWS (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Operating Activities: Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Net income $ 287 $ 179 $ 183 $ 92 $ 137 $ 64 $ 94 $ 62 $ 741 $ 357 $ 126
Equity in (income) loss of subsidiaries Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý (13) (5) (6)
Stock-based compensation Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý 36 32 29
Net cash provided by operating activities Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý 1,219 1,088 575
Investing Activities: Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Net cash (used in) provided by investing activities Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý (424) (202) (600)
Financing Activities: Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Dividends paid to common stockholders (30) $ (30) $ (30) (30) (30) $ (30) $ (30) (30) (120) (120) (121)
Repurchase and cancellation of stock awards Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý (12) (3) (7)
Proceeds from issuance of common stock Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý 35 1 1
Repurchase of common stock Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý (100)
Other, net Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý 1 (1) Ìý
Net cash used in financing activities Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý (519) (723) (562)
Increase in cash and cash equivalents Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý 294 157 (603)
Cash and cash equivalents at beginning of period Ìý Ìý Ìý 385 [1] Ìý Ìý Ìý $ 236 385 [1] 236 825
Cash and cash equivalents at end of period 470 [1] Ìý Ìý Ìý 385 [1] Ìý Ìý Ìý 470 [1] 385 [1] 236
Parent Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Operating Activities: Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Net income Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý 636 326 93
Equity in (income) loss of subsidiaries Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý (504) (199) 32
Stock-based compensation Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý 1 1 1
Noncash interest income Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý (16) (12) (9)
Changes in operating assets and liabilities Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý 13 12 8
Net cash provided by operating activities Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý 130 128 125
Investing Activities: Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Loan to affiliate Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý (47) Ìý (195)
Repayments of loan by affiliate Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý 1 148
Net cash (used in) provided by investing activities Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý (47) 1 (47)
Financing Activities: Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Dividends paid to common stockholders Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý (120) (120) (121)
Repurchase and cancellation of stock awards Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý (12) (3) (7)
Proceeds from issuance of common stock Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý 35 1 1
Repurchase of common stock Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý (100)
Increase (decrease) in payable to affiliates Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý 15 (6) (1)
Net cash used in financing activities Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý (82) (128) (228)
Increase in cash and cash equivalents Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý 1 1 (150)
Cash and cash equivalents at beginning of period Ìý Ìý Ìý $ 1 Ìý Ìý Ìý Ìý 1 Ìý $ 150
Cash and cash equivalents at end of period $ 2 Ìý Ìý Ìý $ 1 Ìý Ìý Ìý $ 2 $ 1 Ìý
[1] At DecemberÌý31, 2017 and December 31, 2016, respectively, $15 and $20 of cash and cash equivalents, $11 and $10 of restricted cash, $35 and $21 of accounts and notes receivable (net), $46 and $45 of inventories, $7 and $5 of other current assets, $283 and $279 of property, plant and equipment (net), $10 each of intangible assets (net), $43 and $37 of other noncurrent assets, $109 and $89 of accounts payable, $32 and $30 of accrued liabilities, $21 and $12 of current portion of debt, $86 and $114 of longterm debt, and $98 and $76 of other noncurrent liabilities from consolidated variable interest entities are included in the respective Balance Sheet captions above. See “NoteÌý7. Variable Interest Entities.â€�