XML 98 R83.htm IDEA: XBRL DOCUMENT v3.22.2
Financial instruments - Fair values and risk management - Notional principal amounts (Details)
€ in Millions
Mar. 31, 2022
EUR (€)
Mar. 31, 2022
$ / €
Mar. 31, 2022
£ / €
Mar. 31, 2021
EUR (€)
Mar. 31, 2021
$ / €
Mar. 31, 2021
£ / €
Mar. 31, 2020
EUR (€)
Mar. 31, 2020
$ / €
Mar. 31, 2020
£ / €
Disclosure of detailed information about financial instruments [line items]                  
Closing foreign exchange rate   1.1065 0.8422   1.1728 0.8510   1.1029 0.8883
Cash Flow Hedges                  
Disclosure of detailed information about financial instruments [line items]                  
Hedged exchange rate | $ / €   1.21              
Foriegn currency forward contracts | Cash Flow Hedges                  
Disclosure of detailed information about financial instruments [line items]                  
Notional amount € 6,705.5     € 3,069.3     € 7,746.6    
Forward foreign exchange contracts - Within 1 Year | Cash Flow Hedges                  
Disclosure of detailed information about financial instruments [line items]                  
Notional amount 4,607.7     1,506.9     3,670.9    
Forward foreign exchange contracts - Greater than 1 Year | Cash Flow Hedges                  
Disclosure of detailed information about financial instruments [line items]                  
Notional amount € 2,097.8     € 1,562.4     € 4,075.7