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Equity (Notes) | 9 Months Ended
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Sep. 30, 2020
Equity [Abstract] |
Equity | SHAREHOLDERS’ EQUITYThe activity in equity during the three and nine-month periods ended September 30, 2020 and 2019 was as follows (dollars in millions, except per share amounts):
| Common Stock |  | Accumulated Other Comprehensive Loss |  | Retained Earnings |  |  |  |  |
| Shares |  | Amount |  |  |  | Total |  |
Balances as of December 31, 2019 | 89,387,124 |  |  | $ | 1,220 |  |  | $ | (10) |  |  | $ | 1,381 |  |  | $ | 2,591 |  |  |  |
Issuances of shares pursuant to equity-based plans | 77,397 |  |  | — |  |  | — |  |  | — |  |  | — |  |  |  |
Other comprehensive income | — |  |  | — |  |  | 1 |  |  | — |  |  | 1 |  |  |  |
Dividends declared ($0.3850 per share) | — |  |  | — |  |  | — |  |  | (35) |  |  | (35) |  |  |  |
Net income | — |  |  | — |  |  | — |  |  | 81 |  |  | 81 |  |  |  |
Balances as of March 31, 2020 | 89,464,521 |  |  | 1,220 |  |  | (9) |  |  | 1,427 |  |  | 2,638 |  |  |  |
Issuances of shares pursuant to equity-based plans | 42,430 |  |  | 1 |  |  | — |  |  | — |  |  | 1 |  |  |  |
Stock-based compensation | — |  |  | 3 |  |  | — |  |  | — |  |  | 3 |  |  |  |
Dividends declared ($0.3850 per share) | — |  |  | — |  |  | — |  |  | (35) |  |  | (35) |  |  |  |
Net income | — |  |  | — |  |  | — |  |  | 39 |  |  | 39 |  |  |  |
Balances as of June 30, 2020 | 89,506,951 |  |  | 1,224 |  |  | (9) |  |  | 1,431 |  |  | 2,646 |  |  |  |
Issuances of shares pursuant to equity-based plans | 2,832 |  |  | — |  |  | — |  |  | — |  |  | — |  |  |  |
Stock-based compensation | — |  |  | 2 |  |  | — |  |  | — |  |  | 2 |  |  |  |
Dividends declared ($0.4075 per share) | — |  |  | — |  |  | — |  |  | (36) |  |  | (36) |  |  |  |
Net income (loss) | — |  |  | — |  |  | — |  |  | (17) |  |  | (17) |  |  |  |
Balances as of September 30, 2020 | 89,509,783 |  |  | $ | 1,226 |  |  | $ | (9) |  |  | $ | 1,378 |  |  | $ | 2,595 |  |  |  |
| Common Stock |  | Accumulated Other Comprehensive Loss |  | Retained Earnings |  |  |  |  |
| Shares |  | Amount |  |  |  | Total |  |  |
Balances as of December 31, 2018 | 89,267,959 |  |  | $ | 1,212 |  |  | $ | (7) |  |  | $ | 1,301 |  |  | $ | 2,506 |  |  |  |
Issuances of shares pursuant to equity-based plans | 88,352 |  |  | — |  |  | — |  |  | — |  |  | — |  |  |  |
Other comprehensive income | — |  |  | — |  |  | 1 |  |  | — |  |  | 1 |  |  |  |
Dividends declared ($0.3625 per share) | — |  |  | — |  |  | — |  |  | (32) |  |  | (32) |  |  |  |
Net income | — |  |  | — |  |  | — |  |  | 73 |  |  | 73 |  |  |  |
Reclassification of stranded tax effects due to Tax Reform | — |  |  | — |  |  | (2) |  |  | 2 |  |  | — |  |  |  |
Balances as of March 31, 2019 | 89,356,311 |  |  | 1,212 |  |  | (8) |  |  | 1,344 |  |  | 2,548 |  |  |  |
Issuances of shares pursuant to equity-based plans | 15,249 |  |  | 1 |  |  | — |  |  | — |  |  | 1 |  |  |  |
Stock-based compensation | — |  |  | 2 |  |  | — |  |  | — |  |  | 2 |  |  |  |
Other comprehensive income | — |  |  | — |  |  | 1 |  |  | — |  |  | 1 |  |  |  |
Dividends declared ($0.3850 per share) | — |  |  | — |  |  | — |  |  | (35) |  |  | (35) |  |  |  |
Net income | — |  |  | — |  |  | — |  |  | 25 |  |  | 25 |  |  |  |
Balances as of June 30, 2019 | 89,371,560 |  |  | 1,215 |  |  | (7) |  |  | 1,334 |  |  | 2,542 |  |  |  |
Issuances of shares pursuant to equity-based plans | 414 |  |  | — |  |  | — |  |  | — |  |  | — |  |  |  |
Stock-based compensation | — |  |  | 2 |  |  | — |  |  | — |  |  | 2 |  |  |  |
Dividends declared ($0.3850 per share) | — |  |  | — |  |  | — |  |  | (35) |  |  | (35) |  |  |  |
Net income | — |  |  | — |  |  | — |  |  | 55 |  |  | 55 |  |  |  |
Balances as of September 30, 2019 | 89,371,974 |  |  | $ | 1,217 |  |  | $ | (7) |  |  | $ | 1,354 |  |  | $ | 2,564 |  |  |  |

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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(e)(1)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 + Details
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