  We calculated the $1s$ level shifts and widths of kaonic deuterium,
corresponding to accurate results on near-threshold antikaon - deuteron
scattering. The Lippmann-Schwinger eigenvalue equation with a strong $K^- - d$
and Coulomb potentials was solved. The two-body $K^- - d$ potentials reproduce
the near-threshold elastic amplitudes of $K^- d$ scattering obtained from the
three-body Alt-Grassberger-Sandhas equations with the coupled channels using
four versions of the $\bar{K}N - \pi \Sigma$ potentials. Both new $\bar{K}N -
\pi \Sigma$ potentials reproducing the very recent SIDDHARTA data on kaonic
hydrogen and our older potentials reproducing KEK data have one- or two-pole
versions of the $\Lambda(1405)$ resonance and reproduce experimental data on
$K^- p$ scattering.
