Subsequent Events (Details) - Subsequent Event - Commercial Renewables $ in Millions	1 Months Ended
Feb. 25, 2021 USD ($)
Maximum
Subsequent Event [Line Items]
Winter storm impact in Texas	$ 100
Minimum
Subsequent Event [Line Items]
Winter storm impact in Texas	$ 75

Amount, before deduction of insurance proceeds, of loss recognized in the income statement for an event or transaction that is unusual in nature or infrequent in occurrence, or both.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=114868883&loc=SL114871943-224233

Name:	us-gaap_UnusualOrInfrequentItemLossGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration