v3.22.1

Cover - USD ($) $ in Billions	12 Months Ended
Cover - USD ($) $ in Billions	Dec. 31, 2021	Apr. 12, 2022	Jun. 30, 2021
Cover [Abstract]
Document Type	10-K/A
Document Annual Report	true
Document Period End Date	Dec. 31, 2021
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-39369
Entity Registrant Name	American National Group, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	30-1221711
Entity Address, Address Line One	One Moody Plaza
Entity Address, City or Town	Galveston
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	77550-7999
City Area Code	409
Local Phone Number	763-4661
Title of 12(b) Security	Common Stock, par value $0.01
Trading Symbol	ANAT
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
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
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 1.1
Entity Common Stock, Shares Outstanding (in shares)		26,887,200
Documents Incorporated by Reference	None.
Entity Central Index Key	0001801075
Amendment Flag	true
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Amendment Description	This Amended Filing provides the information required by Items 10, 11, 12, 13, and 14 of Part III of the Original Filing, which was omitted from the Original Filing in reliance on General Instruction G(3) to Form 10-K.

Description of changes contained within amended document.

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-Section 310

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-Subsection f

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American National Group Inc 10-K/A