v3.26.1
Document and Entity Information
Aug. 12, 2026
Cover [Abstract]  
Entity Registrant Name Platinum SpinCo, Inc.
Amendment Flag false
Entity Central Index Key 0002134183
Document Type 8-K
Document Period End Date Aug. 12, 2026
Entity Incorporation State Country Code DE
Entity File Number 000-56860
Entity Tax Identification Number 41-4666116
Entity Address, Address Line One 1500 DeKoven Avenue
Entity Address, City or Town Racine
Entity Address, State or Province WI
Entity Address, Postal Zip Code 53403
City Area Code (262)
Local Phone Number 636-1200
Written Communications true
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Entity Emerging Growth Company false