| Document and Entity Information | Jan. 30, 2020 |
| Cover [Abstract] | |
| Amendment Flag | false |
| Entity Central Index Key | 0001390844 |
| Document Type | 8-K |
| Document Period End Date | Jan. 30, 2020 |
| Entity Registrant Name | WABCO HOLDINGS INC. |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 1-33332 |
| Entity Tax Identification Number | 20-8481962 |
| Entity Address, Address Line One | Giacomettistrasse 1 |
| Entity Address, Address Line Two | 3000 Bern 31 |
| Entity Address, Country | CH |
| Entity Address, Address Line Three | 1220 Pacific Dr. |
| Entity Address, City or Town | Auburn Hills |
| Entity Address, State or Province | MI |
| Entity Address, Postal Zip Code | 48326-1589 |
| City Area Code | +41-315 |
| Local Phone Number | 813-300 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common stock, par value $0.01 per share |
| Trading Symbol | WBC |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
