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v3.20.1

Derivatives (Notional and Fair Values) (Details) MMBTU in Thousands, Boe in Thousands, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2020 USD ($) MMBTU Boe company | Mar. 31, 2019 MMBTU Boe | Dec. 31, 2019 USD ($) MMBTU Boe company
Derivative Asset [Abstract] |  |  |
Derivative assets - Fair value | $ 834,204 |  | $ 330,316
Less: Master netting agreements | (158,674) |  | (121,561)
Less: Cash collateral received/paid | (20,100) |  | (3,758)
Derivative asset, after netting | 655,430 |  | 204,997
Derivative Liability [Abstract] |  |  |
Derivative liabilities - Fair value | 658,515 |  | 256,528
Less: Master netting agreements | (158,674) |  | (121,561)
Less: Cash collateral received/paid | (84,427) |  | (38,238)
Derivative liability, after netting | $ 415,414 |  | $ 96,729
Crude oil | Customer Counterparty |  |  |
Derivative Liability [Abstract] |  |  |
Derivative, nonmonetary notional amount, energy measure | Boe | 6,738 |  | 7,811
Natural gas | Customer Counterparty |  |  |
Derivative Liability [Abstract] |  |  |
Derivative, nonmonetary notional amount, energy measure | MMBTU | 61,296 |  | 63,773
Derivative instruments designated as hedging instruments |  |  |
Derivative Instruments |  |  |
Notional amount | $ 186,281 |  | $ 117,193
Derivative Asset [Abstract] |  |  |
Derivative assets - Fair value | 73 |  | 0
Derivative Liability [Abstract] |  |  |
Derivative liabilities - Fair value | 1,175 |  | 4,784
Derivative instruments designated as hedging instruments | Interest rate contracts |  |  |
Derivative Instruments |  |  |
Notional amount | 31,026 |  | 31,026
Derivative Asset [Abstract] |  |  |
Derivative assets - Fair value | 0 |  | 0
Derivative Liability [Abstract] |  |  |
Derivative liabilities - Fair value | 1,144 |  | 3,198
Derivative instruments designated as hedging instruments | Foreign exchange contracts |  |  |
Derivative Instruments |  |  |
Notional amount | 155,255 |  | 86,167
Derivative Asset [Abstract] |  |  |
Derivative assets - Fair value | 73 |  | 0
Derivative Liability [Abstract] |  |  |
Derivative liabilities - Fair value | 31 |  | 1,586
Derivatives not designated as hedging instruments |  |  |
Derivative Instruments |  |  |
Notional amount | 21,826,497 |  | 20,540,031
Derivative Asset [Abstract] |  |  |
Derivative assets - Fair value | 834,131 |  | 330,316
Derivative Liability [Abstract] |  |  |
Derivative liabilities - Fair value | 657,340 |  | 251,744
Derivatives not designated as hedging instruments | Interest rate contracts |  |  |
Derivative Instruments |  |  |
Notional amount | 16,657,306 |  | 15,489,692
Derivative Asset [Abstract] |  |  |
Derivative assets - Fair value | 605,122 |  | 192,883
Derivative Liability [Abstract] |  |  |
Derivative liabilities - Fair value | 402,207 |  | 124,119
Derivatives not designated as hedging instruments | Foreign exchange contracts |  |  |
Derivative Instruments |  |  |
Notional amount | 4,958,834 |  | 4,839,661
Derivative Asset [Abstract] |  |  |
Derivative assets - Fair value | 64,310 |  | 54,637
Derivative Liability [Abstract] |  |  |
Derivative liabilities - Fair value | 55,627 |  | 47,024
Derivatives not designated as hedging instruments | Credit contracts |  |  |
Derivative Instruments |  |  |
Notional amount | 210,357 |  | 210,678
Derivative Asset [Abstract] |  |  |
Derivative assets - Fair value | 8 |  | 2
Derivative Liability [Abstract] |  |  |
Derivative liabilities - Fair value | 218 |  | 84
Derivatives not designated as hedging instruments | Equity contracts |  |  |
Derivative Instruments |  |  |
Notional amount | 0 |  | 0
Derivative Asset [Abstract] |  |  |
Derivative assets - Fair value | 1,128 |  | 1,414
Derivative Liability [Abstract] |  |  |
Derivative liabilities - Fair value | 0 |  | 0
Derivatives not designated as hedging instruments | Commodity contracts |  |  |
Derivative Instruments |  |  |
Notional amount | 0 |  | 0
Derivative Asset [Abstract] |  |  |
Derivative assets - Fair value | 163,563 |  | 81,380
Derivative Liability [Abstract] |  |  |
Derivative liabilities - Fair value | $ 199,288 |  | $ 80,517
Derivatives not designated as hedging instruments | Equity, Public Companies |  |  |
Derivative Liability [Abstract] |  |  |
Number of companies that issued the equity (issuers portion only) | company | 2 |  | 3
Derivatives not designated as hedging instruments | Equity, Private Companies |  |  |
Derivative Liability [Abstract] |  |  |
Number of companies that issued the equity (issuers portion only) | company | 18 |  | 18
Commodity contracts | Derivatives not designated as hedging instruments | Commodity contracts | Customer Counterparty |  |  |
Derivative Asset [Abstract] |  |  |
Derivative assets - Fair value | $ 27,134 |  | $ 40,065
Derivative Liability [Abstract] |  |  |
Derivative liabilities - Fair value | 167,127 |  | 42,140
Commodity contracts | Derivatives not designated as hedging instruments | Commodity contracts | Crude oil | Customer Counterparty |  |  |
Derivative Asset [Abstract] |  |  |
Derivative assets - Fair value | 802 |  | 9,622
Derivative Liability [Abstract] |  |  |
Derivative liabilities - Fair value | $ 133,988 |  | 6,099
Derivative, nonmonetary notional amount, energy measure | Boe | 6,738 | 7,811 |
Commodity contracts | Derivatives not designated as hedging instruments | Commodity contracts | Natural gas | Customer Counterparty |  |  |
Derivative Asset [Abstract] |  |  |
Derivative assets - Fair value | $ 26,332 |  | 30,443
Derivative Liability [Abstract] |  |  |
Derivative liabilities - Fair value | $ 33,139 |  | $ 36,041
Derivative, nonmonetary notional amount, energy measure | MMBTU | 61,296 | 63,773 |

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