Class of Stock [Domain] Class of Stock [Domain] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Class of Stock [Axis] Class of Stock [Axis] Security Exchange Name Security Exchange Name Entity Address, City or Town Entity Address, City or Town Soliciting Material Soliciting Material Cover [Abstract] Cover [Abstract] City Area Code City Area Code Common Stock Common Stock [Member] Entity Tax Identification Number Entity Tax Identification Number Amendment Flag Amendment Flag Trading Symbol Trading Symbol Entity Registrant Name Entity Registrant Name Pre-commencement Tender Offer Pre-commencement Tender Offer Entity Emerging Growth Company Entity Emerging Growth Company Entity Address, Country Entity Address, Country Entity Central Index Key Entity Central Index Key Entity File Number Entity File Number Pre-commencement Issuer Tender Offer Pre-commencement Issuer Tender Offer Entity Address, Address Line One Entity Address, Address Line One Document Information [Line Items] Document Information [Line Items] Document Information [Table] Document Information [Table] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Written Communications Written Communications Local Phone Number Local Phone Number Title of 12(b) Security Title of 12(b) Security Document Period End Date Document Period End Date Two700 Senior Notes Due2051 Member Two700 Senior Notes Due2051 Member [Member] Two700 Senior Notes Due2051 Member Document Type Document Type STE Two700 Senior Notes Due2031 Member STE Two700 Senior Notes Due2031 Member [Member] STE Two700 Senior Notes Due2031 Member