Soliciting Material Soliciting Material Written Communications Written Communications Local Phone Number Local Phone Number Class of Stock [Domain] Class of Stock [Domain] Amendment Flag Amendment Flag Entity Emerging Growth Company Entity Emerging Growth Company Entity File Number Entity File Number Security Exchange Name Security Exchange Name Entity Address, State or Province Entity Address, State or Province Entity Address, Address Line One Entity Address, Address Line One City Area Code City Area Code Cover [Abstract] Cover [Abstract] Entity Information [Line Items] Entity Information [Line Items] 2.5% Notes due 2030 Two Point Five Percent Notes Due 2030 [Member] Two Point Five Percent Notes Due 2030 [Member] Document Period End Date Document Period End Date 1.0% Notes due 2029 Two Point One Percent Notes Due 2027 [Member] Two Point One Percent Notes Due 2027 [Member] Pre-commencement Tender Offer Pre-commencement Tender Offer 2.1% Notes due 2027 One Point One Percent Notes Due 2022 [Member] One Point One Percent Notes Due 2022 [Member] Class of Stock [Axis] Class of Stock [Axis] Entity Central Index Key Entity Central Index Key Class A Common Stock Common Class A [Member] Pre-commencement Issuer Tender Offer Pre-commencement Issuer Tender Offer Entity Tax Identification Number Entity Tax Identification Number Entities [Table] Entities [Table] Entity Registrant Name Entity Registrant Name Trading Symbol Trading Symbol Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Title of 12(b) Security Title of 12(b) Security Entity Address, City or Town Entity Address, City or Town Entity Address, Postal Zip Code Entity Address, Postal Zip Code Document Type Document Type