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Document And Entity Information
Mar. 23, 2020
Cover [Abstract]  
Document Type 8-K
Document Period End Date Mar. 23, 2020
Current Fiscal Year End Date --12-31
Entity Registrant Name Lincoln National Corporation
Entity Incorporation, State or Country Code IN
Entity File Number 1-6028
Entity Tax Identification Number 35-1140070
Entity Address, Address Line One 150 N. Radnor Road
Entity Address, City or Town Radnor
Entity Address, State or Province PA
Entity Address, Postal Zip Code 19087
City Area Code 484
Local Phone Number 583-1400
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Entity Central Index Key 0000059558
Amendment Flag false
Title of each class Common Stock
Trading symbol(s) LNC
Name of each exchange on which registered NYSE