This is from a current 744 FCOM:
Flare
The flare maneuver brings the airplane to a smooth automatic landing touchdown. The flare mode is not intended for single autopilot or flight director only operation.
Flare arms when LAND 3 or LAND 2 annunciates. At approximately 50 feet radio altitude, the autopilots start the flare maneuver. FLARE replaces the G/S pitch flight mode annunciation.
During flare:
at 25 feet radio altitude, the autothrottle retards thrust levers to idle
IDLE replaces the SPD autothrottle flight mode annunciation
at touchdown, the FLARE annunciation no longer displays, and the nose lowers to the runway.
Rollout
Rollout provides localizer centerline rollout guidance. Rollout arms when LAND 3 or LAND 2 annunciates.
At approximately five feet radio altitude, rollout activates. ROLLOUT replaces the LOC roll flight mode annunciation.
The autopilot controls rudder and nose wheel steering to track the localizer centerline.
During rollout, autothrottle IDLE mode remains active until the autothrottle disconnects with thrust levers in reverse.
Rollout guidance continues until the autopilots are disengaged.
Note: Ten seconds after reverse thrust levers are down, autothrottle is armed until flaps are UP. Pushing a TO/GA switch while the autothrottle is armed activates the autothrottle in THR REF mode.