XML 27 R1.htm IDEA: XBRL DOCUMENT v3.22.0.1
Cover - USD ($)
$ in Billions
 12 Months Ended
Dec. 31, 2021
Feb. 16, 2022
Jun. 30, 2021
Entity Listings [Line Items]      
Document Type 10-K    
Document Annual Report true    
Current Fiscal Year End Date --12-31    
Document Period End Date Dec. 31, 2021    
Document Transition Report false    
Entity File Number 001-08052    
Entity Registrant Name GLOBE LIFE INC.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 63-0780404    
Entity Address, Address Line One 3700 South Stonebridge Drive    
Entity Address, City or Town McKinney    
Entity Address, State or Province TX    
Entity Address, Postal Zip Code 75070    
City Area Code 972    
Local Phone Number 569-4000    
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     $ 9.5
Entity Common Stock, Shares Outstanding   99,338,401  
Documents Incorporated by Reference
Document  Parts Into Which Incorporated
Proxy Statement for the Annual Meeting of Stockholders to be held on April 28, 2022 (Proxy Statement)  Part III
    
Entity Central Index Key 0000320335    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Amendment Flag false    
Common Stock, $1.00 par value per share      
Entity Listings [Line Items]      
Title of 12(b) Security Common Stock, $1.00 par value per share    
Trading Symbol GL    
Security Exchange Name NYSE    
4.250% Junior Subordinated Debentures      
Entity Listings [Line Items]      
Title of 12(b) Security 4.250% Junior Subordinated Debentures    
Trading Symbol GL PRD    
Security Exchange Name NYSE