Measurements of the absolute branching ratios for the dominant KL decays, the KL lifetime, and Vus with the KLOE detector

From a sample of about 109ϕ mesons produced at DAΦNE, we have selected KL mesons tagged by observing KS→π+π− decays. We present results on the major KL branching ratios, including those of the semileptonic decays needed for the determination of |Vus|. These branching ratio measurements are fully inclusive with respect to final-state radiation. The KL lifetime has also been measured.