XML 499 R134.htm IDEA: XBRL DOCUMENT v3.22.0.1
Treasury risk management - Summary of Derivative Cash Flow Hedges (Details) - EUR (€)
€ in Millions
Dec. 31, 2021
Dec. 31, 2020
Disclosure Of Derivative Cash Flow Hedges [Line Items]    
Foreign exchange cash inflows € 3,118 € 3,136
Foreign exchange cash outflows (3,073) (3,205)
Interest rate swaps cash inflows 3,121 3,277
Interest rate swaps cash outflows (3,033) (3,380)
Commodity contracts cash inflows 45 40
Commodity contracts cash outflows (1) (3)
Due within 1 year    
Disclosure Of Derivative Cash Flow Hedges [Line Items]    
Foreign exchange cash inflows 3,118 3,136
Foreign exchange cash outflows (3,073) (3,205)
Interest rate swaps cash inflows 1,170 403
Interest rate swaps cash outflows (1,147) (347)
Commodity contracts cash inflows 45 40
Commodity contracts cash outflows (1) (3)
Due between 1 and 2 years    
Disclosure Of Derivative Cash Flow Hedges [Line Items]    
Foreign exchange cash inflows 0 0
Foreign exchange cash outflows 0 0
Interest rate swaps cash inflows 530 1,077
Interest rate swaps cash outflows (464) (1,147)
Commodity contracts cash inflows 0 0
Commodity contracts cash outflows 0 0
Due between 2 and 3 years    
Disclosure Of Derivative Cash Flow Hedges [Line Items]    
Foreign exchange cash inflows 0 0
Foreign exchange cash outflows 0 0
Interest rate swaps cash inflows 473 488
Interest rate swaps cash outflows (473) (464)
Commodity contracts cash inflows 0 0
Commodity contracts cash outflows 0 0
Due between 3 and 4 years    
Disclosure Of Derivative Cash Flow Hedges [Line Items]    
Foreign exchange cash inflows 0 0
Foreign exchange cash outflows 0 0
Interest rate swaps cash inflows 26 436
Interest rate swaps cash outflows (13) (473)
Commodity contracts cash inflows 0 0
Commodity contracts cash outflows 0 0
Due between 4 and 5 years    
Disclosure Of Derivative Cash Flow Hedges [Line Items]    
Foreign exchange cash inflows 0 0
Foreign exchange cash outflows 0 0
Interest rate swaps cash inflows 26 24
Interest rate swaps cash outflows (13) (13)
Commodity contracts cash inflows 0 0
Commodity contracts cash outflows 0 0
Due after 5 years    
Disclosure Of Derivative Cash Flow Hedges [Line Items]    
Foreign exchange cash inflows 0 0
Foreign exchange cash outflows 0 0
Interest rate swaps cash inflows 896 849
Interest rate swaps cash outflows (923) (936)
Commodity contracts cash inflows 0 0
Commodity contracts cash outflows 0 0
Net carrying amount as shown in balance sheet    
Disclosure Of Derivative Cash Flow Hedges [Line Items]    
Foreign exchange cash outflows 67 (50)
Interest rate swaps cash outflows (19) (221)
Commodity contracts cash inflows 45 40
Commodity contracts cash outflows € (1) € (3)