Aviva PLC is one of the largest UK insurers. Recently just bought Friends Life.
It is interesting to see how Aviva finances its day to day operations.
http://www.aviva.com/investor-relations/credit-investors/
When one looks at this we get:-
$m 1615m = £1095m
€m 2750m = £2027m
£m 4522m = £4522m
Total = £7644 million = £7.644 Billion
Total debt of £7.644 Billion.
But when looking deeper into Aviva it has £328bn of Assets.