Cover page
Aug. 21, 2020
Cover [Abstract]  
Document Type 8-K
Document Period End Date Aug. 21, 2020
Entity Registrant Name GLOBE LIFE INC.
Entity Incorporation, State or Country Code DE
Entity File Number 001-08052
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
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, $1.00 par value per share
Trading Symbol GL
Security Exchange Name NYSE
Entity Emerging Growth Company false
Entity Central Index Key 0000320335
Amendment Flag false