Measurement of Fair Values
The following table shows the valuation techniques used in measuring Level 2 and Level 3 fair values, as well as the significant unobservable inputs used.
Level 2 and level 3 instruments  | Level 3 instruments  | ||
|---|---|---|---|
Type  | Valuation technique  | Significant unobservable inputs  | Inter-relationship between significant unobservable inputs and fair value measurement  | 
Financial instrument measured at fair value  | |||
Interest rate swaps  | Income approach −   | Not applicable  | Not applicable  | 
Commodity contracts  | Income approach −   | Not applicable  | Not applicable  | 
Forward currency contracts  | Income approach −   | Not applicable  | Not applicable  | 
Financial instrument not measured at fair value  | |||
Loans to joint ventures and associates  | Income approach −   | 
  | The estimated fair value would increase (decrease) if: 
  | 
Finance lease receivables  | Income approach −   | 
  | The estimated fair value would increase (decrease) if: 
  | 
Loans and borrowings  | Income approach −   | Not applicable  | Not applicable  | 
Other long-term debt  | Income approach −   | Not applicable  | Not applicable  |