Delta Air Lines Inc. (DAL) and Northwest Airlines Corp. (NWA) are now officially one company, and together now represent the world’s largest airline carrier.

Merrill: No More Capital Needed; German Bank Bayerische posts $6.7 Write-Down; Gas Prices Extend Record Run; Google Cuts 300 Jobs at DoubleClick; Silver Wheaton Triples Reserves; Northwest Loads Increase; Valero Completes Repairs; Consumer Debt Creeps Higher