26. Trade and other payables
(a) Analysis by type and maturity
| 2022 | 2021 | ||||
| Current US$m | Non-current US$m | Current US$m | Non-current US$m | ||
| Trade payables | 150 | — | 187 | — | |
| VAT and other equivalent taxes payable | 35 | — | 30 | — | |
| Social security costs | 117 | — | 110 | — | |
| Accruals | 699 | 10 | 583 | 4 | |
| Contract liabilities | 427 | 158 | 389 | 114 | |
| Other payables | 316 | 80 | 244 | 41 | |
| 1,744 | 248 | 1,543 | 159 | ||
There is no material difference between the fair value and the book value stated above. Other payables include interest payable of US$83m (2021: US$87m), employee benefits of US$112m (2021: US$97m) and deferred and contingent consideration of US$116m (2021: US$73m).
At 31 March 2020, the value of contract liabilities was US$450m.
(b) Analysis by nature
| 2022 US$m | 2021 US$m | |
| Financial instruments | 694 | 607 |
| VAT and other equivalent taxes payable | 35 | 30 |
| Social security costs | 117 | 110 |
| Amounts within accruals and contract liabilities | 1,146 | 955 |
| Items other than financial instruments | 1,298 | 1,095 |
| 1,992 | 1,702 |
Contractual undiscounted future cash flows in respect of financial instruments are shown in note 32.