v3.26.1
Segment Information - Summary of Reconciliation from Operating Result Before Tax to Income Before Tax (Detail) - EUR (€)
€ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of reconciliation from operating result before tax to income before tax [Line Items]      
Insurance revenue € 9,097 € 9,841 € 10,386
Insurance service expenses 9,423 9,790 10,226
Net income / (expenses) on reinsurance held 836 325 182
Net fair value change of derivatives 43 (35) 0
Insurance finance income / (expenses)     1,048
Net reinsurance finance income / (expenses) on reinsurance held 564 611 699
Investment contract income / (expenses) (11,372) (8,781) (7,851)
Other income (137) (153) (35)
Other charges 6 8 92
Segment total [member]      
Disclosure of reconciliation from operating result before tax to income before tax [Line Items]      
Result before tax from continuing operations 1,045 660 (391)
Elimination of share in earnings of joint ventures and associates (137) (234) (19)
Insurance revenue (11) 2 (15)
Insurance service expenses 456 428 427
Net income / (expenses) on reinsurance held (33) (56) (23)
Net fair value change of financial investments at fair value through profit or loss, other than derivatives (871) (240) (224)
Net fair value change of derivatives (4) 3 (7)
Realized gains and losses on financial investments 251 93 683
Net fair value change on investments in real estate (10) (1) (2)
Impairment (losses) / reversals 63 229 90
Insurance finance income / (expenses) 802 440 375
Net reinsurance finance income / (expenses) on reinsurance held (24) (13) (85)
Investment contract income / (expenses) (13) (6) (5)
Fee and commission income (6) (21) (11)
Commissions and expenses 320 342 597
Other income (129) (146) (18)
Other charges 6 6 79
Results of businesses disposed during reporting periods 0 0 48
Operating result 1,702 1,485 1,498
Tax effect [1] (371) (309) (246)
Operating result after tax € 1,332 € 1,176 € 1,252
[1] Tax effect was calculated using the respective operating segment’s statutory rate and presented on consolidated basis.