Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2022	Jul. 29, 2022
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2022
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q2
Trading Symbol	AGL
Entity Registrant Name	agilon health, inc.
Entity Central Index Key	0001831097
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Shell Company	false
Entity Small Business	false
Entity Emerging Growth Company	false
Title of 12(b) Security	Common stock, $0.01 par value
Security Exchange Name	NYSE
Entity Incorporation, State or Country Code	DE
Entity Address, Address Line One	6210 E Hwy 290
Entity Address, Address Line Two	Suite 450
Entity Address, City or Town	Austin
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	78723
City Area Code	(562)
Local Phone Number	256-3800
Entity File Number	001-40332
Entity Tax Identification Number	37-1915147
Entity Common Stock, Shares Outstanding		410,936,377
Document Quarterly Report	true
Document Transition Report	false