Cover [Abstract] Entity Registrant Name Entity Central Index Key Document Type Amendment Flag Entity Emerging Growth Company Document Period End Date Entity File Number Entity Incorporation State Country Code Entity Tax Identification Number Entity Address Address Line 1 Entity Address City Or Town Entity Address State Or Province Entity Address Postal Zip Code City Area Code Written Communications Soliciting Material Pre Commencement Tender Offer Pre Commencement Issuer Tender Offer Local Phone Number Security 12b Title Trading Symbol Security Exchange Name Class of Stock [Axis] Common Stock Par Value Point Zero One Per Share Member Senior Notes Due December Fifteen Two Thousand Forty Three Member Preferred Stock Purchase Rights Member