| Submission | Feb. 13, 2025 |
| Submission [Line Items] | |
| Central Index Key | 0001097362 |
| Registrant Name | Sun Life Financial Inc. |
| Form Type | S-8 |
| Submission Type | S-8 |
| Fee Exhibit Type | EX-FILING FEES |
| Offerings - Offering: 1 | Feb. 13, 2025 USD ($) shares |
| Offering: | |
| Fee Previously Paid | false |
| Other Rule | true |
| Security Type | Equity |
| Security Class Title | Common Shares |
| Amount Registered | shares | 1,000,000 |
| Proposed Maximum Offering Price per Unit | shares | 58.425 |
| Maximum Aggregate Offering Price | $ | $ 58,425,000 |
| Fee Rate | 0.01531% |
| Amount of Registration Fee | $ | $ 8,944.87 |
| Offering Note | (1) Common shares of Sun Life Financial Inc. (the “ Common Shares ESPPs Securities Act (2) Estimated pursuant to Rule 457(h) and Rule 457(c) under the Securities Act, solely for the purpose of computing the registration fee for Common Shares to be purchased pursuant to the ESPPs, based on the average of the high and low prices reported for a Common Share on the New York Stock Exchange on February 11, 2025, which was US$58.43 per share. |
| Fees Summary | Feb. 13, 2025 USD ($) |
| Fees Summary [Line Items] | |
| Total Offering | $ 58,425,000 |
| Total Fee Amount | 8,944.87 |
| Total Offset Amount | 0 |
| Net Fee | $ 8,944.87 |
