Statements of Consolidated Changes in Equity - USD ($) $ in Millions |
Total |
Common Stock [Member] |
Capital in Excess of Par Value of Shares [Member] |
Retained Earnings [Member] |
Common Shares in Treasury [Member] |
Accumulated Other Comprehensive Income (Loss) [Member] |
AOCI Attributable to Noncontrolling Interest [Member] |
Noncontrolling Interest [Member] |
|---|---|---|---|---|---|---|---|---|
| Balance, beginning of period (in shares) at Dec. 31, 2016 | Ìý | 233,100,000 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Balance, beginning of period at Dec. 31, 2016 | $ (1,330.5) | $ 29.8 | $ 3,347.0 | $ (4,574.3) | $ (245.5) | $ (21.3) | Ìý | $ 133.8 |
| Increase (Decrease) in Stockholders' Equity [Roll Forward] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Comprehensive income (loss) | 360.2 | Ìý | Ìý | 367.0 | Ìý | (4.0) | Ìý | (2.8) |
| Issuance of convertible debt | 83.4 | Ìý | 83.4 | Ìý | Ìý | Ìý | Ìý | Ìý |
| Equity offering (in shares) | Ìý | 63,300,000 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Equity offering (value) | 661.3 | $ 7.9 | 653.4 | Ìý | Ìý | Ìý | Ìý | Ìý |
| Acquisition of noncontrolling interest | (105.0) | Ìý | (70.2) | Ìý | Ìý | Ìý | $ (18.9) | (15.9) |
| Distributions of partnership equity | (128.8) | Ìý | (17.3) | Ìý | Ìý | Ìý | $ 5.2 | (116.7) |
| Capital contributions by noncontrolling interest to subsidiary | 1.8 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 1.8 |
| Stock and other incentive plans (in shares) | Ìý | 1,000,000.0 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Stock and other incentive plans | 13.5 | Ìý | (62.4) | Ìý | 75.9 | Ìý | Ìý | Ìý |
| Balance, end of period (in shares) at Dec. 31, 2017 | Ìý | 297,400,000 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Balance, end of period at Dec. 31, 2017 | (444.1) | $ 37.7 | 3,933.9 | (4,207.3) | (169.6) | (39.0) | Ìý | 0.2 |
| Increase (Decrease) in Stockholders' Equity [Roll Forward] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Adoption of accounting standard | 34.0 | Ìý | Ìý | 34.0 | Ìý | Ìý | Ìý | Ìý |
| Comprehensive income (loss) | 883.2 | Ìý | Ìý | 1,128.1 | Ìý | (244.9) | Ìý | 0.0 |
| Capital contributions by noncontrolling interest to subsidiary | (0.2) | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | (0.2) |
| Stock and other incentive plans (in shares) | Ìý | 600,000 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Stock and other incentive plans | $ 13.8 | Ìý | (17.2) | Ìý | 31.0 | Ìý | Ìý | Ìý |
| Common stock repurchases (in shares) | (5,400,000) | (5,400,000) | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Common stock repurchased (value) | $ (47.5) | Ìý | Ìý | Ìý | (47.5) | Ìý | Ìý | Ìý |
| Common stock dividends 2019 - $0.27 per share (2018 - $0.05 per share) | $ (15.0) | Ìý | Ìý | (15.0) | Ìý | Ìý | Ìý | Ìý |
| Balance, end of period (in shares) at Dec. 31, 2018 | 292,611,569 | 292,600,000 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Balance, end of period at Dec. 31, 2018 | $ 424.2 | $ 37.7 | 3,916.7 | (3,060.2) | (186.1) | (283.9) | Ìý | 0.0 |
| Increase (Decrease) in Stockholders' Equity [Roll Forward] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Comprehensive income (loss) | 257.9 | Ìý | Ìý | 292.8 | Ìý | (34.9) | Ìý | 0.0 |
| Stock and other incentive plans (in shares) | Ìý | 1,900,000 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Stock and other incentive plans | $ 3.7 | Ìý | (44.6) | Ìý | 48.3 | Ìý | Ìý | Ìý |
| Common stock repurchases (in shares) | (24,400,000) | (24,400,000) | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Common stock repurchased (value) | $ (252.9) | Ìý | Ìý | Ìý | (252.9) | Ìý | Ìý | Ìý |
| Common stock dividends 2019 - $0.27 per share (2018 - $0.05 per share) | $ (75.0) | Ìý | Ìý | (75.0) | Ìý | Ìý | Ìý | Ìý |
| Balance, end of period (in shares) at Dec. 31, 2019 | 270,084,005 | 270,100,000 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Balance, end of period at Dec. 31, 2019 | $ 357.9 | $ 37.7 | $ 3,872.1 | $ (2,842.4) | $ (390.7) | $ (318.8) | Ìý | $ 0.0 |
| X | ||||||||||
- Definition Capital contributions by noncontrolling interest to subsidiary No definition available.
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- Definition Undistributed Earnings Losses Related to Noncontrolling Interests No definition available.
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- Definition Adjustment to additional paid in capital resulting from the recognition of convertible debt instruments as two separate components - a debt component and an equity component. This bifurcation may result in a basis difference associated with the liability component that represents a temporary difference for purposes of applying accounting for income taxes. The initial recognition of deferred taxes for the tax effect of that temporary difference is as an adjustment to additional paid in capital. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of paid and unpaid common stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Decrease in noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Represents the quantification of the effect of adopting the new accounting standard or change in accounting principle expected by the entity to have a significant effect on the entity's financial statements. No definition available.
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- Definition Number of new stock issued during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number, after forfeiture, of shares or units issued under share-based payment arrangement. Excludes shares or units issued under employee stock ownership plan (ESOP). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Value, after forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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