The adjustment to the basis (reference rate) used for calculation of the interest rate on borrowings. [Refer: Borrowings]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

The interest rate on borrowings. [Refer: Borrowings]

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- Definition

The amount of instruments issued by the entity that represent indebtedness.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
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-IssueDate 2025-01-01
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- Definition

Borrowings, Adjustment to Interest Rate Basis, Additional Spread Adjustment

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Capital Instrument, Par Value

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Carrying Value Of Capital Instruments [Line Items]

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Capital Instruments - Carrying Value of Capital Instruments (Details) $ / shares in Units, $ in Millions	Dec. 31, 2025 CAD ($) $ / shares	Dec. 31, 2025 $ / shares	Dec. 31, 2025 $ / shares	Dec. 31, 2024 CAD ($)
Carrying Value Of Capital Instruments [Line Items]
Capital instruments	$ 6,990			$ 7,532
SORA Overnight Indexed Swap
Carrying Value Of Capital Instruments [Line Items]
Borrowings, adjustment to interest rate basis	1.201%
JHFC Subordinated notes
Carrying Value Of Capital Instruments [Line Items]
Par value \| $ / shares	$ 650
Capital instruments	$ 648			648
3.983% MFC Subordinated debentures
Carrying Value Of Capital Instruments [Line Items]
Borrowings, interest rate	3.983%
Par value \| $ / shares	$ 500
Capital instruments	$ 497			0
3.983% MFC Subordinated debentures \| Daily Compounded CORRA Plus
Carrying Value Of Capital Instruments [Line Items]
Borrowings, adjustment to interest rate basis	1.32%
2.818% MFC Subordinated debentures
Carrying Value Of Capital Instruments [Line Items]
Borrowings, interest rate	2.818%
Par value \| $ / shares	$ 1,000
Capital instruments	$ 997			997
2.818% MFC Subordinated debentures \| London Interbank Offered Rate (LIBOR)
Carrying Value Of Capital Instruments [Line Items]
Borrowings, adjustment to interest rate basis	2.818%
2.818% MFC Subordinated debentures \| Canadian Dollar Offered Rate
Carrying Value Of Capital Instruments [Line Items]
Borrowings, adjustment to interest rate basis	1.82%
4.064% MFC Subordinated debentures
Carrying Value Of Capital Instruments [Line Items]
Borrowings, interest rate	4.064%
Par value \| $ / shares	$ 1,000
Capital instruments	$ 996			995
4.064% MFC Subordinated debentures \| Daily Compounded CORRA Plus
Carrying Value Of Capital Instruments [Line Items]
Borrowings, adjustment to interest rate basis	1.25%
4.275% MFC Subordinated notes
Carrying Value Of Capital Instruments [Line Items]
Borrowings, interest rate	4.275%
Par value \| $ / shares		$ 500
Capital instruments	$ 531			524
5.054% MFC Subordinated debentures
Carrying Value Of Capital Instruments [Line Items]
Borrowings, interest rate	5.054%
Par value \| $ / shares	$ 1,100
Capital instruments	$ 1,096			1,095
5.054% MFC Subordinated debentures \| Daily Compounded CORRA Plus
Carrying Value Of Capital Instruments [Line Items]
Borrowings, adjustment to interest rate basis	1.44%
5.409% MFC Subordinated debentures
Carrying Value Of Capital Instruments [Line Items]
Borrowings, interest rate	5.409%
Par value \| $ / shares	$ 1,200
Capital instruments	$ 1,197			1,196
5.409% MFC Subordinated debentures \| Daily Compounded CORRA Plus
Carrying Value Of Capital Instruments [Line Items]
Borrowings, adjustment to interest rate basis	1.85%
4.061% MFC Subordinated notes
Carrying Value Of Capital Instruments [Line Items]
Borrowings, interest rate	4.061%
Par value \| $ / shares			$ 750
Capital instruments	$ 1,028			1,077
4.061% MFC Subordinated notes \| London Interbank Offered Rate (LIBOR)
Carrying Value Of Capital Instruments [Line Items]
Borrowings, adjustment to interest rate basis	4.061%
4.061% MFC Subordinated notes \| US Dollar Mid-Swap Rate
Carrying Value Of Capital Instruments [Line Items]
Borrowings, adjustment to interest rate basis	1.647%
2.237% MFC Subordinated debentures
Carrying Value Of Capital Instruments [Line Items]
Borrowings, interest rate	2.237%
Par value \| $ / shares	$ 1,000
Capital instruments	$ 0			$ 1,000
John Hancock Financial Corporation
Carrying Value Of Capital Instruments [Line Items]
Borrowings, adjustment to interest rate basis	0.32138%
Borrowings, adjustment to interest rate basis, plus	0.72%
3.00% MFC Subordinated notes
Carrying Value Of Capital Instruments [Line Items]
Borrowings, interest rate	2.237%