16 Debtors – amounts falling due after one year
  2004
£m		 2003
£m
Trade debtors 14 61
Amounts recoverable on contracts 534 533
Amounts owed by – subsidiary undertakings — —
Amounts owed by – joint ventures 37 47
Deferred tax assets (note 23) 96 94
Other debtors 58 53
Prepayments and accrued income 51 82
Prepaid pension contributions 263 239
  1,053 1,109