ZAU D-SIDE CTLR ISSUES CTL INSTRUCTIONS TO ADJOINING ZID CTLR INCORRECTLY ASSUMING DIRECTION OF HOLDING TURNS ISSUED BY HIS R-SIDE CTLR.

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ACFT X SBOUND FL260 ABOUT TO ENTER HOLD AT DNV VOR. FROM D-SIDE I APPROVE DSCNT TO FL260. CITATION'S RTE OF FLT WAS CGX INBOUND 40 MI S DNV ON APPROX 025 DEG HDG. I THOUGHT ACFT X WAS TO HOLD WITH R TURNS (LIKE OTHER ACFT ALSO HOLDING). ZID HAD COMPLETELY SHUT US OFF DUE TO SATURATION; AND EVERY ACFT IN OUR AIRSPACE WAS ON A VECTOR OR IN THE HOLD. ZID TELLS ME THEY WILL TAKE ACFT X CLBING TO FL330; 20 DEG L TURN. I TRY TO TELL R-SIDE TO GIVE THIS CLRNC; BUT HE CANNOT; AS HE IS VECTORING AND DSNDING/CLBING TWO OTHER ACFT TO BARELY ACHIEVE MINIMUM SEPARATION. AS THIS SIT WAS BEING RESOLVED; ACFT X ENTERED THE HOLDING PATTERN USING L TURNS. HE HAD IN FACT BEEN ISSUED L TURNS BUT I THOUGHT (IN ERROR) THAT HE HAD BEEN GIVEN R TURNS. THIS TURN PUT HIM ON AN INTERCEPT WITH ACFT Y. I REALIZED THEY WERE NOW IN CONFLICT AND BROUGHT IT TO THE R-SIDE'S ATTN. HE GAVE EVASIVE ACTION VECTORS TO AVOID A MIDAIR. DUE TO THE FACT THAT WE HAD BEEN SHUT OFF BY ZID WITHOUT WARNING AND WERE SCRAMBLING TO VECTOR AND HOLD; STRIP MARKING HAD DETERIORATED TO A POINT OF USELESSNESS. SUPPLEMENTAL INFO FROM ACN 418350: I WAS WORKING THE BOILER HIGH ALT SECTOR AT THE HDOF POS. WHILE TURNING ALL AIRPLANES IN THE SECTOR AWAY FROM THE KING SECTOR; AN ACFT AT FL260; AN AIRLINE JET; AND A CITATION CAME TOGETHER. EVASIVE MANEUVERS WERE ATTEMPTED BY OUR RADAR CTLR WITH NO RESPONSE FROM THE ACFT.