0.750% Notes Due 2032 [Member] Notes 0.750 percent due 2032 [Member] Notes 0.750% due 2032 [Member] 0.250% Notes Due 2027 [Member] Notes 0.250 percent Due 2027 [Member] Notes 0.250% Due 2027 [Member] Document Period End Date Document Period End Date 2.0% Exchangeable Subordinated Debentures Due 2029 [Member] Exchangeable Subordinated Debentures 2.0 Percent Due 2029 [Member] Exchangeable Subordinated Debentures 2.0% Due 2029 [Member] Notes 0.0250 percent Due 2029 Notes 0.250 percent Due 2029 [Member] Notes 0.250 percent Due 2029 Pre-commencement Tender Offer Pre-commencement Tender Offer Class of Stock [Domain] Class of Stock [Domain] 1.875% Notes Due 2036 [Member] Notes 1.875 percent due 2036 [Member] Notes 1.875% due 2036 [Member] Soliciting Material Soliciting Material City Area Code City Area Code Entity Address, Postal Zip Code Entity Address, Postal Zip Code Notes 0.000 percent Due 2026 Notes 0.000 percent Due 2026 [Member] Notes 0.000 percent Due 2026 Entity Central Index Key Entity Central Index Key Entity Address, City or Town Entity Address, City or Town Security Exchange Name Security Exchange Name Title of 12(b) Security Title of 12(b) Security Written Communications Written Communications Document Information [Line Items] Document Information [Line Items] Local Phone Number Local Phone Number Trading Symbol Trading Symbol Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Entity Address, State or Province Entity Address, State or Province Pre-commencement Issuer Tender Offer Pre-commencement Issuer Tender Offer Cover [Abstract] Cover [Abstract] Entity Emerging Growth Company Entity Emerging Growth Company Class A Common Stock [Member] Common Class A [Member] 5.50% Notes Due 2029 [Member] Notes 5.50 Percent Due 2029 [Member] Notes 5.50% Due 2029 [Member] Document Type Document Type Amendment Flag Amendment Flag 1.250% Notes Due 2040 [Member] Notes 1.250 percent due 2040 [Member] Notes 1.250% due 2040 [Member] 1.500% Notes Due 2029 [Member] Notes 1.500 percent Due 2029 [Member] Notes 1.500% Due 2029 [Member] Class of Stock [Axis] Class of Stock [Axis] Document Information [Table] Document Information [Table] Entity File Number Entity File Number Entity Tax Identification Number Entity Tax Identification Number Entity Address, Address Line One Entity Address, Address Line One Entity Registrant Name Entity Registrant Name