v3.26.1
Other Net Investment Result - Summary Of Results From Financial Transactions (Detail) - EUR (€)
€ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Net fair value change of financial investments at fair value through profit or loss, other than derivatives      
Net fair value change of financial investments at FVPL (excl. derivatives) € 10,047 € 7,680 € 7,047
Net fair value change of derivatives      
Economic hedges where no hedge accounting is applied 43 (38) (8)
Bifurcated embedded derivatives 0 3 5
Change in fair value of hedges on guarantees in investment contracts without DPF 0 (2)  
Ineffective portion of hedge transactions to which hedge accounting is applied 0 2 3
Total 43 (35) 0
Realized gains and (losses) on financial investments      
Debt securities and money market investments (28) (11) (113)
Other      
Gains and (losses) on investments in real estate 1 0 0
Net fair value change on investments in real estate 2 1 (6)
Net foreign currency gains and (losses) 0 (2) 2
Total 3 0 (4)
Represented by:      
For the year ended December 31 10,065 7,634 6,929
Assets designated at FVPL 10,064 7,666 7,043
Assets mandatorily measured at FVPL (17) 14 3
Other (i.e. FVOCI) 18 (47) (117)
Shares [member]      
Net fair value change of financial investments at fair value through profit or loss, other than derivatives      
Net fair value change of financial investments at FVPL (excl. derivatives) 421 368 195
Debt Securities And Money Market Investments [member]      
Net fair value change of financial investments at fair value through profit or loss, other than derivatives      
Net fair value change of financial investments at FVPL (excl. derivatives) 47 (55) 46
Realized gains and (losses) on financial investments      
Debt securities and money market investments (28) (11) (113)
Unconsolidated Investment Funds [member]      
Net fair value change of financial investments at fair value through profit or loss, other than derivatives      
Net fair value change of financial investments at FVPL (excl. derivatives) 9,578 7,367 6,805
Other [member]      
Net fair value change of financial investments at fair value through profit or loss, other than derivatives      
Net fair value change of financial investments at FVPL (excl. derivatives) € 1 € 0 € 0