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Loss Per Share | 12 Months Ended
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Dec. 31, 2019
Loss Per Share |
Loss Per Share | Note 13—Loss Per Share The computation of basic and diluted loss per share was as follows (in millions, except per share data):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Years ended December 31, |
​ | ​ | 2019 | ​ | 2018 | ​ | 2017 |
​ |  | Basic |  | Diluted |  | Basic |  | Diluted |  | Basic |  | Diluted |
Numerator for loss per share | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net loss attributable to controlling interest | ​ | $ | (1,255) | ​ | $ | (1,255) | ​ | $ | (1,996) | ​ | $ | (1,996) | ​ | $ | (3,127) | ​ | $ | (3,127) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Denominator for loss per share | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted-average shares outstanding | ​ | ​ | 611 | ​ | ​ | 611 | ​ | ​ | 467 | ​ | ​ | 467 | ​ | ​ | 391 | ​ | ​ | 391 | ​
Effect of share-based awards and other equity instruments | ​ | ​ | 1 | ​ | ​ | 1 | ​ | ​ | 1 | ​ | ​ | 1 | ​ | ​ | — | ​ | ​ | — | ​
Weighted-average shares for per share calculation | ​ | ​ | 612 | ​ | ​ | 612 | ​ | ​ | 468 | ​ | ​ | 468 | ​ | ​ | 391 | ​ | ​ | 391 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Loss per share | ​ | $ | (2.05) | ​ | $ | (2.05) | ​ | $ | (4.27) | ​ | $ | (4.27) | ​ | $ | (8.00) | ​ | $ | (8.00) | ​
​ In the years ended December 31, 2019, 2018 and 2017, we excluded from the calculation 12.0 million, 10.6 million and 4.7 million share-based awards, respectively, since the effect would have been anti-dilutive. In the years ended December 31, 2019 and 2018, we excluded from the calculation 84.0 million and 77.2 million shares, respectively, issuable upon conversion of the Exchangeable Bonds since the effect would have been anti-dilutive.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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