v3.25.4
Employee Benefits - Sensitivity Analysis on Funded Status (Detail) - EUR (€)
€ in Millions
Dec. 31, 2025
Dec. 31, 2024
Germany | Interest rate (–50 bps):    
Sensitivity Analysis on Funded Status [line items]    
(Increase) in DBO € (455) € (525)
Expected increase in plan assets [1] 415 465
Expected net impact on funded status (de-) increase (40) (60)
Germany | Interest rate (+50 bps):    
Sensitivity Analysis on Funded Status [line items]    
Decrease in DBO 435 500
Expected (decrease) in plan assets [1] (415) (465)
Expected net impact on funded status (de-) increase 20 35
Germany | Credit spread (–50 bps):    
Sensitivity Analysis on Funded Status [line items]    
(Increase) in DBO (455) (525)
Expected increase in plan assets [1] 285 305
Expected net impact on funded status (de-) increase (170) (220)
Germany | Credit spread (+50 bps):    
Sensitivity Analysis on Funded Status [line items]    
Decrease in DBO 435 500
Expected (decrease) in plan assets [1] (285) (305)
Expected net impact on funded status (de-) increase 150 195
Germany | Rate of price inflation (-50 bp)    
Sensitivity Analysis on Funded Status [line items]    
Decrease in DBO [2] 140 165
Expected (decrease) in plan assets [1],[2] (180) (260)
Expected net impact on funded status (de-) increase [2] (40) (95)
Germany | Rate of price inflation (+50 bp)    
Sensitivity Analysis on Funded Status [line items]    
(Increase) in DBO [2] (250) (280)
Expected increase in plan assets [1],[2] 180 260
Expected net impact on funded status (de-) increase [2] (70) (20)
Germany | Rate of real increase in future compensation
levels (–50 bps):    
Sensitivity Analysis on Funded Status [line items]    
Decrease in DBO, net impact on funded status 20 25
Germany | Rate of real increase in future compensation
levels (+50 bps):    
Sensitivity Analysis on Funded Status [line items]    
(Increase) in DBO, net impact on funded status (20) (25)
Germany | Longevity improvements by 10%    
Sensitivity Analysis on Funded Status [line items]    
(Increase) in DBO [3] (190) (205)
Expected increase in plan assets [3] 0 0
Expected net impact on funded status (de-) increase [3] (190) (205)
U.K. | Interest rate (–50 bps):    
Sensitivity Analysis on Funded Status [line items]    
(Increase) in DBO (165) (210)
Expected increase in plan assets [1] 150 225
Expected net impact on funded status (de-) increase (15) 15
U.K. | Interest rate (+50 bps):    
Sensitivity Analysis on Funded Status [line items]    
Decrease in DBO 155 195
Expected (decrease) in plan assets [1] (140) (205)
Expected net impact on funded status (de-) increase 15 (10)
U.K. | Credit spread (–50 bps):    
Sensitivity Analysis on Funded Status [line items]    
(Increase) in DBO (165) (210)
Expected increase in plan assets [1] 155 220
Expected net impact on funded status (de-) increase (10) 10
U.K. | Credit spread (+50 bps):    
Sensitivity Analysis on Funded Status [line items]    
Decrease in DBO 155 195
Expected (decrease) in plan assets [1] (145) (200)
Expected net impact on funded status (de-) increase 10 (5)
U.K. | Rate of price inflation (-50 bp)    
Sensitivity Analysis on Funded Status [line items]    
Decrease in DBO [2] 115 150
Expected (decrease) in plan assets [1],[2] (120) (150)
Expected net impact on funded status (de-) increase [2] (5) 0
U.K. | Rate of price inflation (+50 bp)    
Sensitivity Analysis on Funded Status [line items]    
(Increase) in DBO [2] (115) (160)
Expected increase in plan assets [1],[2] 120 160
Expected net impact on funded status (de-) increase [2] 5 0
U.K. | Rate of real increase in future compensation
levels (–50 bps):    
Sensitivity Analysis on Funded Status [line items]    
Decrease in DBO, net impact on funded status 0 5
U.K. | Rate of real increase in future compensation
levels (+50 bps):    
Sensitivity Analysis on Funded Status [line items]    
(Increase) in DBO, net impact on funded status 0 (5)
U.K. | Longevity improvements by 10%    
Sensitivity Analysis on Funded Status [line items]    
(Increase) in DBO [3] (55) (60)
Expected increase in plan assets [3] 55 55
Expected net impact on funded status (de-) increase [3] 0 (5)
U.S. | Interest rate (–50 bps):    
Sensitivity Analysis on Funded Status [line items]    
(Increase) in DBO (25) (25)
Expected increase in plan assets [1] 15 20
Expected net impact on funded status (de-) increase (10) (5)
U.S. | Interest rate (+50 bps):    
Sensitivity Analysis on Funded Status [line items]    
Decrease in DBO 25 25
Expected (decrease) in plan assets [1] (15) (20)
Expected net impact on funded status (de-) increase 10 5
U.S. | Credit spread (–50 bps):    
Sensitivity Analysis on Funded Status [line items]    
(Increase) in DBO (50) (55)
Expected increase in plan assets [1] 30 35
Expected net impact on funded status (de-) increase (20) (20)
U.S. | Credit spread (+50 bps):    
Sensitivity Analysis on Funded Status [line items]    
Decrease in DBO 45 50
Expected (decrease) in plan assets [1] (30) (35)
Expected net impact on funded status (de-) increase 15 15
U.S. | Rate of price inflation (-50 bp)    
Sensitivity Analysis on Funded Status [line items]    
Decrease in DBO [2] 5 5
Expected (decrease) in plan assets [1],[2] 0 0
Expected net impact on funded status (de-) increase [2] 5 5
U.S. | Rate of price inflation (+50 bp)    
Sensitivity Analysis on Funded Status [line items]    
(Increase) in DBO [2] (5) (5)
Expected increase in plan assets [1],[2] 0 0
Expected net impact on funded status (de-) increase [2] (5) (5)
U.S. | Rate of real increase in future compensation
levels (–50 bps):    
Sensitivity Analysis on Funded Status [line items]    
Decrease in DBO, net impact on funded status 0 0
U.S. | Rate of real increase in future compensation
levels (+50 bps):    
Sensitivity Analysis on Funded Status [line items]    
(Increase) in DBO, net impact on funded status 0 0
U.S. | Longevity improvements by 10%    
Sensitivity Analysis on Funded Status [line items]    
(Increase) in DBO [3] (20) (20)
Expected increase in plan assets [3] 0 0
Expected net impact on funded status (de-) increase [3] (20) (20)
Other | Interest rate (–50 bps):    
Sensitivity Analysis on Funded Status [line items]    
(Increase) in DBO (40) (45)
Expected increase in plan assets [1] 15 15
Expected net impact on funded status (de-) increase (25) (30)
Other | Interest rate (+50 bps):    
Sensitivity Analysis on Funded Status [line items]    
Decrease in DBO 40 40
Expected (decrease) in plan assets [1] (15) (15)
Expected net impact on funded status (de-) increase 25 25
Other | Credit spread (–50 bps):    
Sensitivity Analysis on Funded Status [line items]    
(Increase) in DBO (45) (50)
Expected increase in plan assets [1] 10 10
Expected net impact on funded status (de-) increase (35) (40)
Other | Credit spread (+50 bps):    
Sensitivity Analysis on Funded Status [line items]    
Decrease in DBO 45 45
Expected (decrease) in plan assets [1] (10) (10)
Expected net impact on funded status (de-) increase 35 35
Other | Rate of price inflation (-50 bp)    
Sensitivity Analysis on Funded Status [line items]    
Decrease in DBO [2] 10 10
Expected (decrease) in plan assets [1],[2] (5) (5)
Expected net impact on funded status (de-) increase [2] 5 5
Other | Rate of price inflation (+50 bp)    
Sensitivity Analysis on Funded Status [line items]    
(Increase) in DBO [2] (10) (10)
Expected increase in plan assets [1],[2] 5 5
Expected net impact on funded status (de-) increase [2] (5) (5)
Other | Rate of real increase in future compensation
levels (–50 bps):    
Sensitivity Analysis on Funded Status [line items]    
Decrease in DBO, net impact on funded status 10 10
Other | Rate of real increase in future compensation
levels (+50 bps):    
Sensitivity Analysis on Funded Status [line items]    
(Increase) in DBO, net impact on funded status (10) (10)
Other | Longevity improvements by 10%    
Sensitivity Analysis on Funded Status [line items]    
(Increase) in DBO [3] (10) (10)
Expected increase in plan assets [3] 0 0
Expected net impact on funded status (de-) increase [3] € (10) € (10)
[1] Expected changes in the fair value of plan assets contain the simulated impact from the biggest plans in Germany, the U.K., the U.S., Channel Islands, Switzerland and
Belgium which cover over 99% of the total fair value of plan assets. The fair value of plan assets for other plans is assumed to be unchanged for this presentation
[2] Incorporates sensitivity to changes in pension benefits to the extent linked to the price inflation assumption
[3] Estimated to be equivalent to an increase of around 1 year in overall life expectancy