Common Stock, par value 1-2/3 cents per share Common Stock [Member] Entity Tax Identification Number Entity Tax Identification Number Entity File Number Entity File Number 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 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 Document and Entity Information [Line Items] Entity Listings [Line Items] 3.300% Senior Notes Due 2034 Three Point Three Percent Notes Due 2034 [Member] Three Point Three Percent Notes Due 2034 Trading Symbol Trading Symbol 0.875% Senior Notes Due 2039 Zero Point Eight Seven Five Percent Notes Due 2039 [Member] Zero Point Eight Seven Five Notes Due 2039 [Member] 4.150% Senior Notes Due 2047 Four Point One Five Percent Notes Due 2047 [Member] Four Point One Five Percent Notes Due 2047 1.125% Senior Notes Due 2031 One Point One Two Five Percent Notes Due 2031 [Member] One Point One Two Five Percent Notes Due 2031 [Member] 1.050% Senior Notes Due 2050 One Point Zero Five Percent Notes Due 2050 [Member] One Point Zero Five Percent Notes Due 2050 City Area Code City Area Code 3.550% Senior Notes Due 2034 Three Point Five Five Percent Notes Due 2034 [Member] Three Point Five Five Percent Notes Due 2034 0.750% Senior Notes Due 2027 Zero Point Seven Five Percent Notes Due 2027 [Member] Zero Point Seven Five Percent Notes Due 2027 [Member] 3.450% Senior Notes Due 2037 Three Point Four Five Percent Notes Due 2037 [Member] Three Point Four Five Percent Notes Due 2037 3.700% Senior Notes Due 2038 Three Point Seven Percent Notes Due 2038 [Member] Three Point Seven Percent Notes Due 2038 3.200% Senior Notes Due 2029 Three Point Two Percent Notes Due 2029 [Member] Three Point Two Percent Notes Due 2029 Entity Listings [Table] Entity Listings [Table] Document Period End Date Document Period End Date Amendment Flag Amendment Flag Pre-commencement Issuer Tender Offer Pre-commencement Issuer Tender Offer Entity Address, City or Town Entity Address, City or Town 0.750% Senior Notes Due 2033 Zero Point Seven Five Percent Notes Due 2033 [Member] Zero Point Seven Five Percent Notes Due 2033 [Member] 4.050% Senior Notes Due 2055 Four Point Zero Five Percent Notes Due 2055 [Member] Four Point Zero Five Percent Notes Due 2055 Security Exchange Name Security Exchange Name Document Type Document Type Class of Stock [Axis] Class of Stock [Axis] 0.400% Senior Notes Due 2032 Zero Point Four Percent Notes Due 2032 [Member] Zero Point Four Percent Notes Due 2032 0.500% Senior Notes Due 2028 Zero Point Five Percent Notes Due 2028 [Member] Zero Point Five Percent Notes Due 2028 [Member] Pre-commencement Tender Offer Pre-commencement Tender Offer Entity Central Index Key Entity Central Index Key Floating Rate Notes Due 2028 Floating Rate Notes Due 2028 [Member] Floating Rate Notes Due 2028 Entity Emerging Growth Company Entity Emerging Growth Company 0.875% Senior Notes Due 2028 Zero Point Eight Seven Five Percent Notes Due 2028 [Member] Zero Point Eight Seven Five Percent Notes Due 2028 [Member]