Derivatives and Risk Management (Balance Sheet Classification of Derivative Financial Instruments) (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Derivatives, Fair Value [Line Items]
Net current derivative liabilities	$ (3,098)	$ (1,098)
Net long-term derivative liabilities	(938)	(407)
Non-performance risk adjustment	10	3
Derivative instruments, net	(4,026)	(1,502)
Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative assets	255	411
Derivative liabilities	4,291	1,916
Not Designated as Hedging Instrument \| Interest rate swaps \| Other long-term assets
Derivatives, Fair Value [Line Items]
Derivative assets	0	2
Natural Gas \| Not Designated as Hedging Instrument \| Fixed price swaps \| Derivative assets
Derivatives, Fair Value [Line Items]
Derivative assets	0	79
Natural Gas \| Not Designated as Hedging Instrument \| Fixed price swaps \| Other long-term assets
Derivatives, Fair Value [Line Items]
Derivative assets	0	64
Natural Gas \| Not Designated as Hedging Instrument \| Fixed price swaps \| Derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	1,693	565
Natural Gas \| Not Designated as Hedging Instrument \| Fixed price swaps \| Long-term derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	629	246
Natural Gas \| Not Designated as Hedging Instrument \| Two-way costless collars \| Derivative assets
Derivatives, Fair Value [Line Items]
Derivative assets	27	9
Natural Gas \| Not Designated as Hedging Instrument \| Two-way costless collars \| Other long-term assets
Derivatives, Fair Value [Line Items]
Derivative assets	22	100
Natural Gas \| Not Designated as Hedging Instrument \| Two-way costless collars \| Derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	423	104
Natural Gas \| Not Designated as Hedging Instrument \| Two-way costless collars \| Long-term derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	168	115
Natural Gas \| Not Designated as Hedging Instrument \| Three-way costless collars \| Derivative assets
Derivatives, Fair Value [Line Items]
Derivative assets	12	12
Natural Gas \| Not Designated as Hedging Instrument \| Three-way costless collars \| Other long-term assets
Derivatives, Fair Value [Line Items]
Derivative assets	7	37
Natural Gas \| Not Designated as Hedging Instrument \| Three-way costless collars \| Derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	826	298
Natural Gas \| Not Designated as Hedging Instrument \| Three-way costless collars \| Long-term derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	140	178
Natural Gas \| Not Designated as Hedging Instrument \| Basis swaps \| Derivative assets
Derivatives, Fair Value [Line Items]
Derivative assets	125	77
Natural Gas \| Not Designated as Hedging Instrument \| Basis swaps \| Other long-term assets
Derivatives, Fair Value [Line Items]
Derivative assets	41	22
Natural Gas \| Not Designated as Hedging Instrument \| Basis swaps \| Derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	77	9
Natural Gas \| Not Designated as Hedging Instrument \| Basis swaps \| Long-term derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	9	22
Natural Gas \| Not Designated as Hedging Instrument \| Call options \| Derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	164	67
Natural Gas \| Not Designated as Hedging Instrument \| Call options \| Long-term derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	59	42
Oil \| Not Designated as Hedging Instrument \| Fixed price swaps \| Derivative assets
Derivatives, Fair Value [Line Items]
Derivative assets	1	0
Oil \| Not Designated as Hedging Instrument \| Fixed price swaps \| Other long-term assets
Derivatives, Fair Value [Line Items]
Derivative assets	5	0
Oil \| Not Designated as Hedging Instrument \| Fixed price swaps \| Derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	32	60
Oil \| Not Designated as Hedging Instrument \| Fixed price swaps \| Long-term derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	4	9
Oil \| Not Designated as Hedging Instrument \| Three-way costless collars \| Derivative assets
Derivatives, Fair Value [Line Items]
Derivative assets	2	1
Oil \| Not Designated as Hedging Instrument \| Three-way costless collars \| Other long-term assets
Derivatives, Fair Value [Line Items]
Derivative assets	1	3
Oil \| Not Designated as Hedging Instrument \| Three-way costless collars \| Derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	28	24
Oil \| Not Designated as Hedging Instrument \| Three-way costless collars \| Long-term derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	6	21
Ethane \| Not Designated as Hedging Instrument \| Fixed price swaps \| Derivative assets
Derivatives, Fair Value [Line Items]
Derivative assets	0	2
Ethane \| Not Designated as Hedging Instrument \| Fixed price swaps \| Derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	10	10
Ethane \| Not Designated as Hedging Instrument \| Fixed price swaps \| Long-term derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	1	0
Ethane \| Not Designated as Hedging Instrument \| Two-way costless collars \| Derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	0	1
Propane \| Not Designated as Hedging Instrument \| Fixed price swaps \| Derivative assets
Derivatives, Fair Value [Line Items]
Derivative assets	6	2
Propane \| Not Designated as Hedging Instrument \| Fixed price swaps \| Other long-term assets
Derivatives, Fair Value [Line Items]
Derivative assets	2	0
Propane \| Not Designated as Hedging Instrument \| Fixed price swaps \| Derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	11	78
Propane \| Not Designated as Hedging Instrument \| Fixed price swaps \| Long-term derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	0	1
Propane \| Not Designated as Hedging Instrument \| Three-way costless collars \| Derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	0	4
Normal Butane \| Not Designated as Hedging Instrument \| Fixed price swaps \| Derivative assets
Derivatives, Fair Value [Line Items]
Derivative assets	2	1
Normal Butane \| Not Designated as Hedging Instrument \| Fixed price swaps \| Derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	4	27
Natural Gasoline \| Not Designated as Hedging Instrument \| Fixed price swaps \| Derivative assets
Derivatives, Fair Value [Line Items]
Derivative assets	2	0
Natural Gasoline \| Not Designated as Hedging Instrument \| Fixed price swaps \| Derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	7	33
Natural Gasoline \| Not Designated as Hedging Instrument \| Fixed price swaps \| Long-term derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	0	1
Natural Gas Storage \| Not Designated as Hedging Instrument \| Fixed price swaps \| Derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	$ 0	$ 1

Derivative Assets (Liabilities), at Fair Value, Net, Current

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Derivative Assets (Liabilities), at Fair Value, Net, Noncurrent

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Derivative Assets (Liabilities), Non-Performance Risk Adjustment

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Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments.

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Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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