6.77% Notes due 2036 6.77% Notes Due January 1, 2036 [Member] 6.77% Notes Due January 1, 2036 [Member] Entity Tax Identification Number Entity Tax Identification Number 1.700% Notes due 2049 1.700% Notes due 2049 [Member] 1.700% Notes due 2049 [Member] Entity File Number Entity File Number Cover [Abstract] Cover [Abstract] Title of 12(b) Security Title of 12(b) Security Local Phone Number Local Phone Number Class of Stock [Domain] Class of Stock [Domain] Soliciting Material Soliciting Material Entity Address, Address Line One Entity Address, Address Line One Entity Registrant Name Entity Registrant Name Entity Address, Postal Zip Code Entity Address, Postal Zip Code 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 1.625% Notes due 2043 1.625% Notes due 2043 [Member] 1.625% Notes due 2043 Trading Symbol Trading Symbol 0.625% Notes due 2031 .625% Notes due 2031 [Member] .625% Notes due 2031 [Member] City Area Code City Area Code Document Information [Table] Document Information [Table] Common Stock (no par value) Common Class A [Member] 2.125% Notes due 2030 2.125% Notes Due June 3, 2030 [Member] 2.125% Notes Due June 3, 2030 [Member] Document Period End Date Document Period End Date 0.500% Notes due 2033 .500% Notes due 2033 [Member] 0.500% Notes due 2033 Amendment Flag Amendment Flag Pre-commencement Issuer Tender Offer Pre-commencement Issuer Tender Offer Entity Address, City or Town Entity Address, City or Town 1.125% Notes due 2051 1.125% Notes due 2051 [Member] 1.125% Notes due 2051 1.375% Notes due 2061 1.375% Notes due 2061 [Member] 1.375% Notes due 2061 Security Exchange Name Security Exchange Name Document Information [Line Items] Document Information [Line Items] 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