XML 515 R131.htm IDEA: XBRL DOCUMENT v3.21.1
Financial structure and financial costs - Interest rate risk sensitivity (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Sensitivity analysis      
Financial liabilities $ (115,381) $ (107,735) $ (93,333)
Financial assets 72,671 70,341 67,768
Fair value, financial liabilities (121,410) (110,883) (94,485)
Fair value, financial assets 72,671 70,341 67,768
Impact of changes in interest rates on the cost of net debt      
Cost of net debt (2,110) (2,352) (2,121)
Bonds (before swaps)      
Sensitivity analysis      
Financial liabilities (46,239) (38,657) (34,975)
Fair value, financial liabilities (52,246) (41,805) (36,127)
Swaps hedging bonds      
Sensitivity analysis      
Financial liabilities (1,615) (1,694) (1,880)
Financial assets 3,221 512 613
Carrying amount 1,606 (1,182) (1,267)
Fair value, financial liabilities (1,615) (1,694) (1,880)
Fair value, financial assets 3,221 512 613
Estimated fair value 1,606 (1,182) (1,267)
Current portion of non-current debt after swaps (excluding lease obligations)      
Sensitivity analysis      
Financial liabilities (4,674) (5,331) (5,027)
Fair value, financial liabilities (4,696) (5,332) (5,027)
Held for trading - Other interest rate swaps      
Sensitivity analysis      
Carrying amount (73) (7) (37)
Estimated fair value (73) (7) (37)
Held for trading - Currency swaps and forward exchange contracts      
Sensitivity analysis      
Carrying amount (6) 89 (34)
Estimated fair value $ (6) 89 (34)
Interest rate risk      
Sensitivity analysis      
Reasonably possible increase in risk assumption (as a percent) 0.10%    
Reasonably possible decrease in risk assumption (as a percent) (0.10%)    
Impact of changes in interest rates on the cost of net debt      
Impact on cost of net debt, interest rate increase $ 29 27 29
Impact on cost of net debt, interest rate decrease (29) (27) (29)
Interest rate risk | Bonds (before swaps)      
Sensitivity analysis      
Change in fair value due to interest rate increase 440 247 185
Change in fair value due to interest rate decrease (440) (247) (185)
Interest rate risk | Swaps hedging bonds      
Sensitivity analysis      
Change in fair value due to interest rate increase (70) (44) (59)
Change in fair value due to interest rate decrease 70 44 59
Interest rate risk | Current portion of non-current debt after swaps (excluding lease obligations)      
Sensitivity analysis      
Change in fair value due to interest rate increase 2 1  
Change in fair value due to interest rate decrease (2) (1)  
Interest rate risk | Held for trading - Other interest rate swaps      
Sensitivity analysis      
Change in fair value due to interest rate increase 18 18 12
Change in fair value due to interest rate decrease $ (18) $ (18) $ (12)