Derivative Financial Instruments - Schedule of Derivative Assets or Liabilities By Counterparty (Details) $ in Millions	Dec. 31, 2021 USD ($)
Schedule of Derivative Assets and Liabilities by Counterparty [Line Items]
Net Liabilities	$ 563
Citibank
Schedule of Derivative Assets and Liabilities by Counterparty [Line Items]
Net Liabilities	122
Morgan Stanley Capital Group
Schedule of Derivative Assets and Liabilities by Counterparty [Line Items]
Net Liabilities	121
Occidental Petroleum Corporation
Schedule of Derivative Assets and Liabilities by Counterparty [Line Items]
Net Liabilities	77
Scotia Bank
Schedule of Derivative Assets and Liabilities by Counterparty [Line Items]
Net Liabilities	54
J Aron & Company
Schedule of Derivative Assets and Liabilities by Counterparty [Line Items]
Net Liabilities	40
JP Morgan Chase
Schedule of Derivative Assets and Liabilities by Counterparty [Line Items]
Net Liabilities	40
PNC Bank
Schedule of Derivative Assets and Liabilities by Counterparty [Line Items]
Net Liabilities	36
CIBC
Schedule of Derivative Assets and Liabilities by Counterparty [Line Items]
Net Liabilities	24
Macquarie Bank
Schedule of Derivative Assets and Liabilities by Counterparty [Line Items]
Net Liabilities	23
Merrill Lynch
Schedule of Derivative Assets and Liabilities by Counterparty [Line Items]
Net Liabilities	13
Wells Fargo Bank
Schedule of Derivative Assets and Liabilities by Counterparty [Line Items]
Net Liabilities	9
Nextera Energy Power Marketing
Schedule of Derivative Assets and Liabilities by Counterparty [Line Items]
Net Liabilities	$ 4