v3.25.4
Cover
 12 Months Ended
Dec. 31, 2025
shares
Document Information [Line Items]  
Document Type 40-F
Document Registration Statement false
Document Annual Report true
Document Period End Date Dec. 31, 2025
Current Fiscal Year End Date --12-31
Entity File Number 1-14942
Registrant Name MANULIFE FINANCIAL CORPORATION
Entity Incorporation, State or Country Code Z4
Entity Primary SIC Number 6311
Entity Address, Address Line One 200 Bloor Street East
Entity Address, City or Town Toronto
Entity Address, State or Province ON
Entity Address, Country CA
Entity Address, Postal Zip Code M4W 1E5
City Area Code 416
Local Phone Number 926-3000
Title of 12(b) Security Common Shares
Trading Symbol MFC
Security Exchange Name NYSE
Annual Information Form true
Audited Annual Financial Statements true
Entity Current Reporting Status Yes
Entity Interactive Data Current Yes
Entity Emerging Growth Company false
ICFR Auditor Attestation Flag true
Document Financial Statement Error Correction [Flag] false
Central Index Key 0001086888
Amendment Flag false
Document Fiscal Period Focus FY
Document Fiscal Year Focus 2025
Common shares  
Document Information [Line Items]  
Entity Common Stock, Shares Outstanding 1,677,180,680
Class A Shares Series 2  
Document Information [Line Items]  
Entity Common Stock, Shares Outstanding 14,000,000
Class A Shares Series 3  
Document Information [Line Items]  
Entity Common Stock, Shares Outstanding 12,000,000
Class 1 Shares Series 3  
Document Information [Line Items]  
Entity Common Stock, Shares Outstanding 6,537,903
Class 1 Shares Series 4  
Document Information [Line Items]  
Entity Common Stock, Shares Outstanding 1,462,097
Class 1 Shares Series 9  
Document Information [Line Items]  
Entity Common Stock, Shares Outstanding 10,000,000
Class 1 Shares Series 11  
Document Information [Line Items]  
Entity Common Stock, Shares Outstanding 8,000,000
Class 1 Shares Series 13  
Document Information [Line Items]  
Entity Common Stock, Shares Outstanding 8,000,000
Class 1 Shares Series 15  
Document Information [Line Items]  
Entity Common Stock, Shares Outstanding 8,000,000
Class 1 Shares Series 17  
Document Information [Line Items]  
Entity Common Stock, Shares Outstanding 14,000,000
Class 1 Shares Series 19  
Document Information [Line Items]  
Entity Common Stock, Shares Outstanding 10,000,000
Class 1 Shares Series 25  
Document Information [Line Items]  
Entity Common Stock, Shares Outstanding 10,000,000
Class 1 Shares Series 27  
Document Information [Line Items]  
Entity Common Stock, Shares Outstanding 2,000,000
Class 1 Shares Series 28  
Document Information [Line Items]  
Entity Common Stock, Shares Outstanding 1,200,000
Class 1 Shares Series 29  
Document Information [Line Items]  
Entity Common Stock, Shares Outstanding 1,000,000
Business Contact  
Document Information [Line Items]  
Entity Address, Address Line One 197 Clarendon Street
Entity Address, City or Town Boston
Entity Address, State or Province MA
Entity Address, Postal Zip Code 02116
City Area Code 617
Local Phone Number 663-3000
Contact Personnel Name Tracy Lannigan