COMMITMENTS & CONTINGENCIES (Details) $ in Millions |
1 Months Ended | |||||
|---|---|---|---|---|---|---|
|
Sep. 30, 2021
plaintiff
|
Jan. 31, 2021
customer
|
Dec. 31, 2020
count
tranche
|
Mar. 31, 2022
USD ($)
|
Dec. 31, 2021
USD ($)
|
Jan. 28, 2021
tranche
|
|
| Loss Contingencies [Line Items] | ||||||
| Accrued for legal and regulatory contingencies | $ | $ 104 | $ 85 | ||||
| Number of tranches | 3 | |||||
| Massachusetts Securities Law Violations | ||||||
| Loss Contingencies [Line Items] | ||||||
| Number of lawsuits | count | 3 | |||||
| Putative Securities Fraud Class Action Lawsuit | ||||||
| Loss Contingencies [Line Items] | ||||||
| Number of lawsuits | 5 | |||||
| March 2020 Outages | ||||||
| Loss Contingencies [Line Items] | ||||||
| Number of customers | plaintiff | 400 | |||||
| Putative Class Actions | ||||||
| Loss Contingencies [Line Items] | ||||||
| Number of customers | customer | 2,000 | |||||