CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Mar. 31, 2020	Dec. 31, 2019
Common Stock, Par or Stated Value Per Share	$ 1	$ 1
Common Stock, Shares Authorized	240,000,000	240,000,000
Common Stock, shares issued	164,532,481	164,526,709
Common Class A
Common Stock, Par or Stated Value Per Share	$ 5	$ 5
Common Stock, Shares Authorized	27,000,000	27,000,000
Common Stock, shares issued	26,175,113	26,180,885

Face amount or stated value per share of common stock.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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