Sir Paul McCartney and Heather Mills are understood to have thrashed out a divorce deal in which she will receive almost £70 million. Miss Mills, who split from the former Beatle in May last year after four years of marriage, is believed to be in line for a lump sum of £15 million. If the deal goes through she will get another £3.5million every year until their daughter Beatrice, who will be four in October, reaches her 18th birthday. The divorce settlement - which would be the largest in British legal history - will include a clause ensuring that neither party ever speaks publicly about what led to the breakdown of their marriage, the Daily Mail has learned.