v3.26.1
Segment Information - Summary of Assets and Liabilities Per Segment (Detail) - EUR (€)
€ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Assets        
Cash and cash equivalents € 2,733 € 3,469 € 4,074 € 8,486
Investments 285,141 293,716    
Investments in joint ventures 1,566 1,503 1,430  
Investments in associates 2,638 3,122 € 2,906  
Reinsurance contract assets 17,153 16,021    
Insurance contract assets 18 125    
Deferred expenses 452 490    
Other assets 7,530 8,944    
Total assets 317,233 327,390    
Liabilities        
Reinsurance contract liabilities 195 303    
Insurance contract liabilities 176,067 188,359    
Investment contracts 97,814 91,669    
Other liabilities 12,380 15,414    
Total liabilities 307,738 318,077    
With Discretionary Participating Features [member]        
Liabilities        
Investment contracts 21,281 22,332    
Without Discretionary Participating Features [member]        
Liabilities        
Investment contracts 97,814 91,669    
Americas [member]        
Assets        
Cash and cash equivalents 802 1,049    
Investments 158,284 173,726    
Investments in associates 78      
Reinsurance contract assets 17,092 15,968    
Insurance contract assets 18 122    
Deferred expenses 438 473    
Other assets 5,509 6,622    
Total assets 182,221 197,960    
Liabilities        
Reinsurance contract liabilities 7 90    
Insurance contract liabilities 130,447 142,996    
Other liabilities 7,744 10,318    
Total liabilities 177,368 194,131    
Americas [member] | Without Discretionary Participating Features [member]        
Liabilities        
Investment contracts 39,170 40,728    
United Kingdom [member]        
Assets        
Cash and cash equivalents 211 231    
Investments 125,128 118,218    
Reinsurance contract assets 1 3    
Deferred expenses 14 17    
Other assets 1,568 1,585    
Total assets 126,923 120,054    
Liabilities        
Reinsurance contract liabilities 4 5    
Insurance contract liabilities 44,705 44,339    
Other liabilities 1,056 988    
Total liabilities 125,678 118,605    
United Kingdom [member] | With Discretionary Participating Features [member]        
Liabilities        
Investment contracts 21,269 22,332    
United Kingdom [member] | Without Discretionary Participating Features [member]        
Liabilities        
Investment contracts 58,644 50,942    
International [member]        
Assets        
Cash and cash equivalents 101 110    
Investments 1,487 1,599    
Investments in joint ventures 1,065 1,020    
Investments in associates   0    
Reinsurance contract assets 4,165 5,183    
Insurance contract assets 0 3    
Other assets 149 163    
Total assets 6,968 8,078    
Liabilities        
Reinsurance contract liabilities 184 208    
Insurance contract liabilities 5,208 6,243    
Other liabilities 220 226    
Total liabilities 5,624 6,676    
International [member] | With Discretionary Participating Features [member]        
Liabilities        
Investment contracts 12      
Asset management [member]        
Assets        
Cash and cash equivalents 166 162    
Investments 230 162    
Investments in joint ventures 502 483    
Investments in associates 296 289    
Other assets 357 438    
Total assets 1,551 1,534    
Liabilities        
Other liabilities 326 378    
Total liabilities 326 378    
Holding and other activities [member]        
Assets        
Cash and cash equivalents 1,453 1,917    
Investments 11 11    
Investments in associates 2,264 2,833    
Other assets 9,032 8,251    
Total assets 12,760 13,011    
Liabilities        
Other liabilities 3,264 3,698    
Total liabilities 3,264 3,698    
Eliminations [member]        
Assets        
Reinsurance contract assets (4,106) (5,133)    
Other assets (9,084) (8,114)    
Total assets (13,190) (13,247)    
Liabilities        
Insurance contract liabilities (4,292) (5,219)    
Other liabilities (230) (192)    
Total liabilities € (4,522) € (5,411)