Cover Page - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2019	Apr. 27, 2020	Jun. 28, 2019
Entity Information [Line Items]
Document Type	10-K/A
Document Annual Report	true
Document Period End Date	Dec. 31, 2019
Document Transition Report	false
Entity File Number	1-13726
Entity Well-known Seasoned Issuer	Yes
Entity Registrant Name	CHESAPEAKE ENERGY CORPORATION
Entity Incorporation, State or Country Code	OK
Entity Tax Identification Number	73-1395733
Entity Address, Address Line One	6100 North Western Avenue,
Entity Address, City or Town	Oklahoma City,
Entity Address, State or Province	OK
Entity Address, Postal Zip Code	73118
City Area Code	(405)
Local Phone Number	848-8000
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 2.2
Entity Common Stock, Shares Outstanding		9,783,101
Amendment Flag	true
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Entity Central Index Key	0000895126
Current Fiscal Year End Date	--12-31
Entity Voluntary Filers	No
Amendment Description	Because the definitive 2020 Proxy Statement will not be filed with the Commission before April 29, 2020, the Company is filing this Amendment No. 1 to the Original 10-K Filing (this “Form 10-K/A”) to provide the additional information required by Part III of Form 10-K.
Common Stock, par value $0.01
Entity Information [Line Items]
Title of 12(b) Security	Common Stock, par value $0.01
Trading Symbol	CHK
Security Exchange Name	NYSE
6.625% Senior Notes due 2020
Entity Information [Line Items]
Title of 12(b) Security	6.625% Senior Notes due 2020
Trading Symbol	CHK20A
Security Exchange Name	NYSE
6.875% Senior Notes due 2020
Entity Information [Line Items]
Title of 12(b) Security	6.875% Senior Notes due 2020
Trading Symbol	CHK20
Security Exchange Name	NYSE
6.125% Senior Notes due 2021
Entity Information [Line Items]
Title of 12(b) Security	6.125% Senior Notes due 2021
Trading Symbol	CHK21
Security Exchange Name	NYSE
5.375% Senior Notes due 2021
Entity Information [Line Items]
Title of 12(b) Security	5.375% Senior Notes due 2021
Trading Symbol	CHK21A
Security Exchange Name	NYSE
4.875% Senior Notes due 2022
Entity Information [Line Items]
Title of 12(b) Security	4.875% Senior Notes due 2022
Trading Symbol	CHK22
Security Exchange Name	NYSE
5.75% Senior Notes due 2023
Entity Information [Line Items]
Title of 12(b) Security	5.75% Senior Notes due 2023
Trading Symbol	CHK23
Security Exchange Name	NYSE
4.50% Cumulative Convertible Preferred Stock
Entity Information [Line Items]
Title of 12(b) Security	4.5% Cumulative Convertible Preferred Stock
Trading Symbol	CHK Pr D
Security Exchange Name	NYSE