UK finance minister Javid promises "very detailed costings" of Conservative manifesto

British finance minister Sajid Javid said on Sunday the governing Conservative Party would deliver a "very detailed costings document" at the launch of its election manifesto, promising to lower the country's debt.

"We are also announcing the triple tax lock which is our commitment giving more financial security to working people ... We will set out today, alongside our manifesto ... a very detailed costings document," Javid told Sky News.