XML 51 R40.htm IDEA: XBRL DOCUMENT
v3.20.2

Earnings Per Share (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2020
Earnings Per Share [Abstract] |
Reconciliation of NRG's basic and diluted earnings per share | The reconciliation of NRG's basic and diluted income per share is shown in the following table:
| Three months ended September 30, |  | Nine months ended September 30,
(In millions, except per share data) | 2020 |  | 2019 |  | 2020 |  | 2019
Basic income per share: |  |  |  |
Net income available to common shareholders | $ | 249 |  |  | $ | 372 |  |  | $ | 683 |  |  | $ | 1,055 |
Weighted average number of common shares outstanding - basic | 244 |  |  | 254 |  |  | 246 |  |  | 266 |
Income per weighted average common share — basic | $ | 1.02 |  |  | $ | 1.46 |  |  | $ | 2.78 |  |  | $ | 3.97 |
Diluted income per share: |  |  |  |
Net income available to common shareholders | $ | 249 |  |  | $ | 372 |  |  | $ | 683 |  |  | $ | 1,055 |
Weighted average number of common shares outstanding - basic | 244 |  |  | 254 |  |  | 246 |  |  | 266 |
Incremental shares attributable to the issuance of equity compensation (treasury stock method) | 1 |  |  | 2 |  |  | 1 |  |  | 2 |
Weighted average number of common shares outstanding - dilutive | 245 |  |  | 256 |  |  | 247 |  |  | 268 |
Income per weighted average common share — diluted | $ | 1.02 |  |  | $ | 1.45 |  |  | $ | 2.77 |  |  | $ | 3.94 |

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