CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Preferred stock, dividend rate, per-dollar-amount (in dollars per share)	$ 2	$ 2
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)	2,953	2,991
Preferred stock, shares outstanding (in shares)	2,953	2,991
Preferred stock, liquidation preference, value	$ 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)	902,000,000	825,000,000