XML 51 R33.htm IDEA: XBRL DOCUMENT
v3.20.4

Net Earnings Per Share (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2020
Earnings Per Share [Abstract] |
Calculations of Net Earnings Per Share - Basic and Diluted | The calculation of net earnings per share - basic and net earnings per share - diluted were as follows:
Year Ended December 31 |  | 2020 |  |  | 2019 |  |  | 2018 |
Net earnings available to common shareholders: |  | $ | 23.8 |  |  | $ | 465.7 |  |  | $ | 556.7 |
Weighted-average common shares outstanding (in millions): |  |  |  |  |  |  |  |  |  |  |  |
Weighted-average common shares outstanding - basic |  |  | 58.0 |  |  |  | 59.9 |  |  |  | 64.6 |
Effect of dilutive securities - stock options |  |  | — |  |  |  | — |  |  |  | 0.1 |
Effect of other share-based awards |  |  | 0.3 |  |  |  | 0.4 |  |  |  | 0.4 |
Weighted-average common shares outstanding - diluted |  |  | 58.3 |  |  |  | 60.3 |  |  |  | 65.1 |
Net earnings per share - basic |  | $ | 0.41 |  |  | $ | 7.78 |  |  | $ | 8.62 |
Net earnings per share - diluted |  | $ | 0.41 |  |  | $ | 7.72 |  |  | $ | 8.56 |

X
- References No definition available. + Details
Name: | us-gaap_EarningsPerShareAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
Name: | us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration