0000936468 2021-08-03 2021-08-03 0000936468 false 8-K 2021-08-03 LOCKHEED MARTIN CORPORATION MD 1-11437 52-1893632 6801 Rockledge Drive Bethesda, MD 20817 301 897-6000 false false false false Common Stock, $1 par value LMT NYSE false