Derivatives and Risk Management (Balance Sheet Classification of Derivative Financial Instruments) (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Derivatives, Fair Value [Line Items]
Net current derivative liabilities	$ (3,007)	$ (1,098)
Net long-term derivative liabilities	(1,017)	(407)
Non-performance risk adjustment	12	3
Derivative instruments, net	(4,012)	(1,502)
Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative assets	252	411
Derivative liabilities	4,276	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	1,532	565
Natural Gas \| Not Designated as Hedging Instrument \| Fixed price swaps \| Long-term derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	650	246
Natural Gas \| Not Designated as Hedging Instrument \| Two-way costless collars \| Derivative assets
Derivatives, Fair Value [Line Items]
Derivative assets	20	9
Natural Gas \| Not Designated as Hedging Instrument \| Two-way costless collars \| Other long-term assets
Derivatives, Fair Value [Line Items]
Derivative assets	31	100
Natural Gas \| Not Designated as Hedging Instrument \| Two-way costless collars \| Derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	291	104
Natural Gas \| Not Designated as Hedging Instrument \| Two-way costless collars \| Long-term derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	203	115
Natural Gas \| Not Designated as Hedging Instrument \| Three-way costless collars \| Derivative assets
Derivatives, Fair Value [Line Items]
Derivative assets	11	12
Natural Gas \| Not Designated as Hedging Instrument \| Three-way costless collars \| Other long-term assets
Derivatives, Fair Value [Line Items]
Derivative assets	10	37
Natural Gas \| Not Designated as Hedging Instrument \| Three-way costless collars \| Derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	760	298
Natural Gas \| Not Designated as Hedging Instrument \| Three-way costless collars \| Long-term derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	182	178
Natural Gas \| Not Designated as Hedging Instrument \| Basis swaps \| Derivative assets
Derivatives, Fair Value [Line Items]
Derivative assets	91	77
Natural Gas \| Not Designated as Hedging Instrument \| Basis swaps \| Other long-term assets
Derivatives, Fair Value [Line Items]
Derivative assets	88	22
Natural Gas \| Not Designated as Hedging Instrument \| Basis swaps \| Derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	95	9
Natural Gas \| Not Designated as Hedging Instrument \| Basis swaps \| Long-term derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	8	22
Natural Gas \| Not Designated as Hedging Instrument \| Call options \| Derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	154	67
Natural Gas \| Not Designated as Hedging Instrument \| Call options \| Long-term derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	61	42
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	33	10
Ethane \| Not Designated as Hedging Instrument \| Fixed price swaps \| Long-term derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	2	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	0	2
Propane \| Not Designated as Hedging Instrument \| Fixed price swaps \| Derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	67	78
Propane \| Not Designated as Hedging Instrument \| Fixed price swaps \| Long-term derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	3	1
Propane \| Not Designated as Hedging Instrument \| Three-way costless collars \| Derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	3	4
Normal Butane \| Not Designated as Hedging Instrument \| Fixed price swaps \| Derivative assets
Derivatives, Fair Value [Line Items]
Derivative assets	0	1
Normal Butane \| Not Designated as Hedging Instrument \| Fixed price swaps \| Derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	25	27
Normal Butane \| Not Designated as Hedging Instrument \| Fixed price swaps \| Long-term derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	1	0
Oil \| Not Designated as Hedging Instrument \| Fixed price swaps \| Derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	86	60
Oil \| Not Designated as Hedging Instrument \| Fixed price swaps \| Long-term derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	17	9
Oil \| Not Designated as Hedging Instrument \| Three-way costless collars \| Derivative assets
Derivatives, Fair Value [Line Items]
Derivative assets	0	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	52	24
Oil \| Not Designated as Hedging Instrument \| Three-way costless collars \| Long-term derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	18	21
Natural Gas Storage \| Not Designated as Hedging Instrument \| Fixed price swaps \| Derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	0	1
Natural Gasoline \| Not Designated as Hedging Instrument \| Fixed price swaps \| Derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	31	33
Natural Gasoline \| Not Designated as Hedging Instrument \| Fixed price swaps \| Long-term derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	$ 2	$ 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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- Definition

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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