Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 1	$ 1
Common Stock, Par or Stated Value Per Share	$ 1	$ 1
Common Stock, Shares Authorized	200,000,000	200,000,000
Common Stock, Shares, Issued	87,986,865	102,415,883
Common Stock, Shares, Outstanding	71,690,061	85,636,154
Treasury Stock, Shares	16,296,804	16,779,729