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Derivative Instruments (Balance Sheet Disclosure) (Details) - USD ($) $ in Millions | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Derivatives, Fair Value [Line Items] |  |
Derivative assets | $ 3,601 | $ 1,824
Derivative Asset, Current | 1,757 | 689
Derivative Asset, Noncurrent | 1,844 | 1,135
Derivative liability | 6,304 | 2,976
Derivative Liability, Current | 3,380 | 1,263
Derivative Liability, Noncurrent | 2,924 | 1,713
Current Derivative Assets |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Asset, Fair Value, Amount Offset Against Collateral | 942 | 150
Non Current Derivative Assets |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Asset, Fair Value, Amount Offset Against Collateral | 292 | 56
Current derivative liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Liability, Collateral, Right to Reclaim Cash, Offset | 64 | 6
Non Current derivative liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Liability, Collateral, Right to Reclaim Cash, Offset | 1,338 | 172
Commodity contracts | Fair value measurements made on a recurring basis [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivative assets | 3,099 | 1,757
Derivative liability | 6,130 | 2,198
Derivative asset, netting | (17,088) | (6,622)
Derivative liability, netting | (17,256) | (6,594)
Commodity contracts | Level 1 | Fair value measurements made on a recurring basis [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Asset, Gross Asset | 5,476 | 1,896
Derivative Liability, Gross Liability | 7,367 | 2,571
Commodity contracts | Level 2 | Fair value measurements made on a recurring basis [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Asset, Gross Asset | 12,424 | 5,082
Derivative Liability, Gross Liability | 12,138 | 4,990
Commodity contracts | Level 3 | Fair value measurements made on a recurring basis [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Asset, Gross Asset | 2,287 | 1,401
Derivative Liability, Gross Liability | 3,881 | 1,231
Interest rate contracts | Fair value measurements made on a recurring basis [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivative assets | 502 | 76
Derivative liability | 17 | 709
Derivative asset, netting | (3) | (30)
Derivative liability, netting | (3) | (30)
Interest rate contracts | Level 1 | Fair value measurements made on a recurring basis [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Asset, Gross Asset | 0 | 0
Derivative Liability, Gross Liability | 0 | 0
Interest rate contracts | Level 2 | Fair value measurements made on a recurring basis [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Asset, Gross Asset | 505 | 106
Derivative Liability, Gross Liability | 20 | 739
Interest rate contracts | Level 3 | Fair value measurements made on a recurring basis [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Asset, Gross Asset | 0 | 0
Derivative Liability, Gross Liability | 0 | 0
Foreign currency contracts | Fair value measurements made on a recurring basis [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivative assets | 0 | (9)
Derivative liability | 157 | 69
Derivative asset, netting | 0 | (17)
Derivative liability, netting | 0 | (17)
Foreign currency contracts | Level 1 | Fair value measurements made on a recurring basis [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Asset, Gross Asset | 0 | 0
Derivative Liability, Gross Liability | 0 | 0
Foreign currency contracts | Level 2 | Fair value measurements made on a recurring basis [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Asset, Gross Asset | 0 | 8
Derivative Liability, Gross Liability | 157 | 86
Foreign currency contracts | Level 3 | Fair value measurements made on a recurring basis [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Asset, Gross Asset | 0 | 0
Derivative Liability, Gross Liability | 0 | 0
Florida Power & Light Company |  |
Derivatives, Fair Value [Line Items] |  |
Derivative assets | 111 |
Derivative liability |  | 10
Florida Power & Light Company | Current other assets |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Asset, Current | 109 | 13
Derivative Asset, Noncurrent | 2 |
Florida Power & Light Company | Current other liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Liability, Current | 13 | 9
Florida Power & Light Company | Noncurrent other liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Liability, Noncurrent |  | 1
Florida Power & Light Company | Commodity contracts | Fair value measurements made on a recurring basis [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivative assets | 111 | 13
Derivative liability | 13 | 10
Derivative asset, netting | (12) | (3)
Derivative liability, netting | (12) | (3)
Florida Power & Light Company | Commodity contracts | Level 1 | Fair value measurements made on a recurring basis [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Asset, Gross Asset | 0 | 0
Derivative Liability, Gross Liability | 0 | 0
Florida Power & Light Company | Commodity contracts | Level 2 | Fair value measurements made on a recurring basis [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Asset, Gross Asset | 24 | 3
Derivative Liability, Gross Liability | 9 | 8
Florida Power & Light Company | Commodity contracts | Level 3 | Fair value measurements made on a recurring basis [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Asset, Gross Asset | 99 | 13
Derivative Liability, Gross Liability | $ 16 | $ 5

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