CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Dec. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Preferred stock, par or stated value per share (in usd per share)	$ 1	$ 1
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred stock, shares issued (in shares)	3,484	3,484
Preferred stock, shares outstanding (in shares)	3,484	3,484
Preferred stock, liquidation preference per share (in usd per share)	$ 50	$ 50
Common stock, par or stated value per share (in usd per share)	$ 0.10	$ 0.10
Common stock, shares authorized (in shares)	4,500,000,000	4,500,000,000
Common stock, shares issued (in shares)	2,900,000,000	2,900,000,000
Treasury stock, shares (in shares)	747,000,000	679,000,000