True, at the absolute dollar amount currently. But look at the downward slopes that the big portions are showing. If Microsoft wants to be Kodak or Polaroid, that's a good approach.
The future of windows and office is debatable for sure, but that doesn't mean Xbox is a core division. Its just not. Listen to the MS earnings calls for any given quarter, and count how many analysts both to ask about Xbox. There's generally none at all. The people whose entire job is to analyze MS's business don't give a shit about the Xbox.