Natural Gas and Oil Property Transactions - Purchase Price Allocation (Details) - USD ($) $ in Millions			1 Months Ended	11 Months Ended	12 Months Ended
	Mar. 09, 2022	Nov. 01, 2021	Feb. 09, 2021	Dec. 31, 2021	Dec. 31, 2023	Dec. 31, 2022
Consideration:
Restricted stock unit replacement awards			$ 3	$ 9	$ 33	$ 22
Marcellus
Consideration:
Cash	$ 2,000
Fair value of Chesapeake’s common stock issued in the merger	764
Working capital adjustments	6
Total consideration	2,770
Fair Value of Liabilities Assumed:
Current liabilities	459
Other long-term liabilities	129
Amounts attributable to liabilities assumed	588
Fair Value of Assets Acquired:
Cash, cash equivalents and restricted cash	39
Other current assets	218
Proved natural gas and oil properties	2,309
Unproved properties	788
Other property and equipment	1
Other long-term assets	3
Amounts attributable to assets acquired	3,358
Total identifiable net assets	$ 2,770
Vine Acquisition
Consideration:
Cash		$ 253
Fair value of Chesapeake’s common stock issued in the merger		1,231
Restricted stock unit replacement awards		6
Total consideration		1,490
Fair Value of Liabilities Assumed:
Current liabilities		765
Long-term debt		1,021
Deferred tax liabilities		30		$ 49		$ 30
Other long-term liabilities		272
Amounts attributable to liabilities assumed		2,088
Fair Value of Assets Acquired:
Cash and cash equivalents		59
Other current assets		206
Proved natural gas and oil properties		2,181
Unproved properties		1,099
Other property and equipment		1
Other long-term assets		32
Amounts attributable to assets acquired		3,578
Total identifiable net assets		$ 1,490