Consumer Products & Devices was the name of their TV, Audio & Video, Digital Imaging, Chemical & Energy, Electronic Devices and Semiconductor businesses segment back in 2009. Sony caused a lot of confusion over the years with the similarity of the names for many divisions.
A briefing on the Game division changes over the years according to their Investor Relations archives.
Prior to FY '96, (granted that's not many years), the Game division was part of the electronics division. Specifically, it was labeled as "other" in that division.
FY 1996 - 2007, the Games division was by itself.
The Network Products and Services segment in FY 2008 - 2009 included the Games division and PC & other network services.
The Consumer Products & Services Group in FY 2010 included TV, Home Video, Home Audio, Digital Imaging, PC, Game and Mobile products -- as well as the networked service businesses.
Game was by itself again for FY 2011 and 2012.
It was part of the Game and Network Services segment starting in FY 2013.
Between FY 2012 and 2013, certain network segments (they don't say specifically what though) were listed under "All Other". For FY 2014 and 2015, those network segments are included in the Games division.
Hehe, seems like we're basically saying the same thing here (you went a bit more in depth as to what was included in the divisions while Game was a part of them though . Anyway, my main point was that Game had it's separate division for a long time before just now, it's just that there was two years inbetween where it was included with some other stuff