Fair Value of Financial Instruments - Assets and Liabilities Measured and Recorded at Fair Value (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in securities (classified within other current and non-current assets)	$ 19	$ 19
Other trust fund investments (classified within other non-current assets):
U.S. government and federal agency obligations		1
Measured using net asset value practical expedient:
Total assets	8,280	12,858
Derivative liabilities:
Derivative contracts	5,721	8,441
Foreign exchange
Derivative assets:
Derivative contracts	8	18
Derivative liabilities:
Derivative contracts	6	2
Commodity contracts
Derivative assets:
Derivative contracts	7,301	11,976
Derivative liabilities:
Derivative contracts	5,600	8,439
Interest rate contracts
Derivative assets:
Derivative contracts	24
Consumer Financing Program
Derivative liabilities:
Derivative contracts	115
Cash and cash equivalents
Nuclear trust fund investments (classified within non-current assets - held-for-sale):
Nuclear trust fund investments	21	15
U.S. government and federal agency obligations
Nuclear trust fund investments (classified within non-current assets - held-for-sale):
Nuclear trust fund investments	90	86
Federal agency mortgage-backed securities
Nuclear trust fund investments (classified within non-current assets - held-for-sale):
Nuclear trust fund investments	103	101
Commercial mortgage-backed securities
Nuclear trust fund investments (classified within non-current assets - held-for-sale):
Nuclear trust fund investments	34	35
Corporate debt securities
Nuclear trust fund investments (classified within non-current assets - held-for-sale):
Nuclear trust fund investments	116	114
Equity securities
Nuclear trust fund investments (classified within non-current assets - held-for-sale):
Nuclear trust fund investments	464	403
Measured using net asset value practical expedient:
Equity securities	6	6
Foreign government fixed income securities
Nuclear trust fund investments (classified within non-current assets - held-for-sale):
Nuclear trust fund investments	1	1
Equity securities — nuclear trust fund investments (classified within non-current assets - held-for-sale)
Measured using net asset value practical expedient:
Equity securities	93	83
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in securities (classified within other current and non-current assets)	0	0
Other trust fund investments (classified within other non-current assets):
U.S. government and federal agency obligations		1
Measured using net asset value practical expedient:
Total assets	1,798	2,432
Derivative liabilities:
Derivative contracts	1,072	1,244
Level 1 \| Foreign exchange
Derivative assets:
Derivative contracts	0	0
Derivative liabilities:
Derivative contracts	0	0
Level 1 \| Commodity contracts
Derivative assets:
Derivative contracts	1,225	1,929
Derivative liabilities:
Derivative contracts	1,072	1,244
Level 1 \| Interest rate contracts
Derivative assets:
Derivative contracts	0
Level 1 \| Consumer Financing Program
Derivative liabilities:
Derivative contracts	0
Level 1 \| Cash and cash equivalents
Nuclear trust fund investments (classified within non-current assets - held-for-sale):
Nuclear trust fund investments	21	15
Level 1 \| U.S. government and federal agency obligations
Nuclear trust fund investments (classified within non-current assets - held-for-sale):
Nuclear trust fund investments	88	84
Level 1 \| Federal agency mortgage-backed securities
Nuclear trust fund investments (classified within non-current assets - held-for-sale):
Nuclear trust fund investments	0	0
Level 1 \| Commercial mortgage-backed securities
Nuclear trust fund investments (classified within non-current assets - held-for-sale):
Nuclear trust fund investments	0	0
Level 1 \| Corporate debt securities
Nuclear trust fund investments (classified within non-current assets - held-for-sale):
Nuclear trust fund investments	0	0
Level 1 \| Equity securities
Nuclear trust fund investments (classified within non-current assets - held-for-sale):
Nuclear trust fund investments	464	403
Level 1 \| Foreign government fixed income securities
Nuclear trust fund investments (classified within non-current assets - held-for-sale):
Nuclear trust fund investments	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in securities (classified within other current and non-current assets)	19	19
Other trust fund investments (classified within other non-current assets):
U.S. government and federal agency obligations		0
Measured using net asset value practical expedient:
Total assets	4,871	9,086
Derivative liabilities:
Derivative contracts	3,927	6,451
Level 2 \| Foreign exchange
Derivative assets:
Derivative contracts	8	18
Derivative liabilities:
Derivative contracts	6	2
Level 2 \| Commodity contracts
Derivative assets:
Derivative contracts	4,564	8,796
Derivative liabilities:
Derivative contracts	3,921	6,449
Level 2 \| Interest rate contracts
Derivative assets:
Derivative contracts	24
Level 2 \| Consumer Financing Program
Derivative liabilities:
Derivative contracts	0
Level 2 \| Cash and cash equivalents
Nuclear trust fund investments (classified within non-current assets - held-for-sale):
Nuclear trust fund investments	0	0
Level 2 \| U.S. government and federal agency obligations
Nuclear trust fund investments (classified within non-current assets - held-for-sale):
Nuclear trust fund investments	2	2
Level 2 \| Federal agency mortgage-backed securities
Nuclear trust fund investments (classified within non-current assets - held-for-sale):
Nuclear trust fund investments	103	101
Level 2 \| Commercial mortgage-backed securities
Nuclear trust fund investments (classified within non-current assets - held-for-sale):
Nuclear trust fund investments	34	35
Level 2 \| Corporate debt securities
Nuclear trust fund investments (classified within non-current assets - held-for-sale):
Nuclear trust fund investments	116	114
Level 2 \| Equity securities
Nuclear trust fund investments (classified within non-current assets - held-for-sale):
Nuclear trust fund investments	0	0
Level 2 \| Foreign government fixed income securities
Nuclear trust fund investments (classified within non-current assets - held-for-sale):
Nuclear trust fund investments	1	1
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in securities (classified within other current and non-current assets)	0	0
Other trust fund investments (classified within other non-current assets):
U.S. government and federal agency obligations		0
Derivative assets:
Derivative contracts	1,512	1,251
Measured using net asset value practical expedient:
Total assets	1,512	1,251
Derivative liabilities:
Derivative contracts	722	746
Level 3 \| Foreign exchange
Derivative assets:
Derivative contracts	0	0
Derivative liabilities:
Derivative contracts	0	0
Level 3 \| Commodity contracts
Derivative assets:
Derivative contracts	1,512	1,251
Derivative liabilities:
Derivative contracts	607	746
Level 3 \| Interest rate contracts
Derivative assets:
Derivative contracts	0
Level 3 \| Consumer Financing Program
Derivative liabilities:
Derivative contracts	115
Level 3 \| Cash and cash equivalents
Nuclear trust fund investments (classified within non-current assets - held-for-sale):
Nuclear trust fund investments	0	0
Level 3 \| U.S. government and federal agency obligations
Nuclear trust fund investments (classified within non-current assets - held-for-sale):
Nuclear trust fund investments	0	0
Level 3 \| Federal agency mortgage-backed securities
Nuclear trust fund investments (classified within non-current assets - held-for-sale):
Nuclear trust fund investments	0	0
Level 3 \| Commercial mortgage-backed securities
Nuclear trust fund investments (classified within non-current assets - held-for-sale):
Nuclear trust fund investments	0	0
Level 3 \| Corporate debt securities
Nuclear trust fund investments (classified within non-current assets - held-for-sale):
Nuclear trust fund investments	0	0
Level 3 \| Equity securities
Nuclear trust fund investments (classified within non-current assets - held-for-sale):
Nuclear trust fund investments	0	0
Level 3 \| Foreign government fixed income securities
Nuclear trust fund investments (classified within non-current assets - held-for-sale):
Nuclear trust fund investments	$ 0	$ 0

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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