Holdings have tumbled by $540bn from a $1.51tn peak in September 2007 amid bank failures, asset writedowns and the sale of loans and businesses

Finnish handset maker in talks with groups over forming an exclusive opportunity to launch a smartphone using the Windows 8 platform from Microsoft

Group denies claims it may have overpaid for a $7.2bn oil and gas investment in July last year and insists people must focus on the longer term