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Derivative Instruments and Hedging Activities - Part 3 (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Cash Flow Hedging [Member] |  |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |  |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net | $ 9 | $ (23) | $ 59 | $ (51)
Gain Loss By Type Of Derivative Tables |  |  |  |
Gains (Losses) Recognized in Earnings (not designated as hedging instruments) | 160 | 331 | 7 | 676
Cash Flow Hedging [Member] | Commodity Contract [Member] |  |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |  |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net | (1) | 0 | 13 | (1)
Gain Loss By Type Of Derivative Tables |  |  |  |
Gains (Losses) Recognized in Earnings (not designated as hedging instruments) | (4) | 32 | (27) | 61
Cash Flow Hedging [Member] | Foreign currency derivatives [Member] |  |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |  |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net | (3) | 0 | (3) | 0
Gain Loss By Type Of Derivative Tables |  |  |  |
Gains (Losses) Recognized in Earnings (not designated as hedging instruments) | 4 | (24) | 12 | (12)
Cash Flow Hedging [Member] | Interest Rate Contract [Member] |  |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |  |
Accumulated Other Comprehensive Income Loss Before Tax Expected Increase Decrease Next Twelve Months | 39 |  | 39 |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net | 13 | (23) | 49 | (50)
Gain Loss By Type Of Derivative Tables |  |  |  |
Gains (Losses) Recognized in Earnings (not designated as hedging instruments) | 160 | 323 | 22 | 627
Loss on Cash Flow Hedges due to impairment of assets | 0 | (16) | 0 | (16)
Loss on Cash Flow Hedges due to change in forecast | 13 | (15) | 14 | (15)
Fair Value Hedging |  |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |  |
Gain (Loss) on Hedging Activity | (30) | (17) | (33) | (13)
Fair Value Hedging | Other Contract [Member] |  |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |  |
Gain (Loss) on Hedging Activity | 3 | (25) | 53 | 22
Not Designated as Hedging Instrument [Member] |  |  |  |
Gain Loss By Type Of Derivative Tables |  |  |  |
Gains (Losses) Recognized in Earnings (not designated as hedging instruments) | 130 | 35 | 191 | 5
Not Designated as Hedging Instrument [Member] | Other Contract [Member] |  |  |  |
Gain Loss By Type Of Derivative Tables |  |  |  |
Gains (Losses) Recognized in Earnings (not designated as hedging instruments) | 126 | 30 | 191 | 17
Not Designated as Hedging Instrument [Member] | Foreign currency derivatives [Member] |  |  |  |
Gain Loss By Type Of Derivative Tables |  |  |  |
Gains (Losses) Recognized in Earnings (not designated as hedging instruments) | 4 | 4 | 0 | (15)
Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member] |  |  |  |
Gain Loss By Type Of Derivative Tables |  |  |  |
Gains (Losses) Recognized in Earnings (not designated as hedging instruments) | 0 | 1 | 0 | 3
Designated as Hedging Instruments [Member] | Fair Value Hedging |  |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |  |
Gain (Loss) on Hedging Activity | $ (33) | $ 8 | $ (86) | $ (35)

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