Delta Airlines Inc. DAL, +0.36% reported a top- and bottom-line beat with its fourth-quarter results Friday, although the company’s stock was falling 5.1% in premarket trades after Delta delivered lowered earnings guidance. Net income was $2.04 billion, or $3.16 a share, compared with $828 million, or $1.29 a share, in the prior year’s quarter. Adjusted earnings per share, which excludes nonrecurring items, came in at $1.28, compared with $1.48 in the same period last year, and beat the FactSet consensus o ...