CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Dec. 31, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Preferred Stock, Par or Stated Value Per Share	$ 1	$ 1
Preferred Stock, Shares Authorized	10,000,000	10,000,000
Preferred Stock, Shares Issued	3,484	3,568
Preferred Stock, Shares Outstanding	3,484	3,568
Preferred Stock, Liquidation Preference Per Share	$ 50	$ 50
Common Stock, Par or Stated Value Per Share	$ 0.10	$ 0.10
Common Stock, Shares Authorized	4,500,000,000	4,500,000,000
Common Stock, Shares Issued	2,900,000,000	2,900,000,000
Treasury Stock, Shares	679,000,000	672,000,000