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v3.20.2

Derivative Instruments (Net Notional Volumes and Additional Disclosures) (Details) bbl in Millions, MWh in Millions, MMBTU in Millions, $ in Millions | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2020 USD ($) MWh MMBTU bbl | Dec. 31, 2019 USD ($) MWh MMBTU bbl
Interest Rate Swap [Member] |  |
Derivative [Line Items] |  |
Notional amount | $ | $ 10,500 | $ 8,900
Currency Swap [Member] |  |
Derivative [Line Items] |  |
Notional amount | $ | $ 957 | $ 1,000
Short [Member] | Commodity contract - Power [Member] |  |
Derivative [Line Items] |  |
Non-monetary net notional amount (in MWh) | MWh | 76 | 81
Short [Member] | Commodity contract - Natural gas [Member] |  |
Derivative [Line Items] |  |
Non-monetary net notional amount (in MMBtu) | MMBTU | 352 | 1,723
Short [Member] | Commodity contract - Oil [Member] |  |
Derivative [Line Items] |  |
Non-monetary net notional amount (in barrels) | bbl | (14) | (13)
FPL [Member] | Short [Member] | Commodity contract - Oil [Member] |  |
Derivative [Line Items] |  |
Non-monetary net notional amount (in barrels) | bbl | 0 | 0
FPL [Member] | Long [Member] | Commodity contract - Power [Member] |  |
Derivative [Line Items] |  |
Non-monetary net notional amount (in MWh) | MWh | 0 | 1
FPL [Member] | Long [Member] | Commodity contract - Natural gas [Member] |  |
Derivative [Line Items] |  |
Non-monetary net notional amount (in MMBtu) | MMBTU | 143 | 161

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