Entity Tax Identification Number Entity Tax Identification Number Entity File Number Entity File Number LONDON STOCK EXCHANGE LONDON STOCK EXCHANGE [Member] Cover [Abstract] Cover [Abstract] Title of 12(b) Security Title of 12(b) Security Entities [Table] Entities [Table] Local Phone Number Local Phone Number NEW YORK STOCK EXCHANGE, INC. NEW YORK STOCK EXCHANGE, INC. [Member] Class of Stock [Domain] Class of Stock [Domain] Entity Address, Address Line One Entity Address, Address Line One Soliciting Material Soliciting Material TORONTO STOCK EXCHANGE TORONTO STOCK EXCHANGE [Member] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Entity Address, State or Province Entity Address, State or Province Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Written Communications Written Communications Entity Information [Line Items] Entity Information [Line Items] Trading Symbol Trading Symbol Exchange [Domain] Exchange [Domain] Entity Listings, Exchange [Axis] Entity Listings, Exchange [Axis] Perpetual 4% Consolidated Debenture Stock Perpetual 4% Consolidated Debenture Stock [Member] Perpetual 4% Consolidated Debenture Stock [Domain] City Area Code City Area Code Common Shares, without par value, of Canadian Pacific Railway Limited Common Class A [Member] Document Period End Date Document Period End Date Pre-commencement Issuer Tender Offer Pre-commencement Issuer Tender Offer Entity Address, City or Town Entity Address, City or Town Amendment Flag Amendment Flag Entity Address, City or Town Entity Address, Country Security Exchange Name Security Exchange Name Document Type Document Type Class of Stock [Axis] Class of Stock [Axis] Pre-commencement Tender Offer Pre-commencement Tender Offer Entity Central Index Key Entity Central Index Key Entity Emerging Growth Company Entity Emerging Growth Company