Financial Statements

(f) Debtors

  2006
£m
2005
£m
Trade and other debtors 4  
Amounts owed by subsidiaries 208 126
Amounts owed by joint ventures   1
Corporation tax 16 24
Prepayments and accrued income   1
Interest rate derivative assets* 24  
  252 152

* Includes contracted cash flow with a maturity greater than one year at fair value.