XML 52 R41.htm IDEA: XBRL DOCUMENT
v3.21.1

Goodwill (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill | The following presents our goodwill balance allocated by segment as of March 31, 2021:
(in millions) |  | Gas Distribution Operations |  | Electric Operations |  | Corporate and Other |  | Total
Goodwill |  | $ | 1,485.9 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,485.9 |

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

X
- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267 + Details
Name: | us-gaap_ScheduleOfGoodwillTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration