Earnings Per Share - Schedule Of Reconciliation Of Net Income/(Loss) to Net Income/(Loss) Available to Common Shareholders (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share [Abstract]
Net income	$ 235	$ 311	$ 236	$ 539	$ 57	$ 16	$ 781	$ 612
Net income attributable to noncontrolling interest	3			3			9	8
Net income attributable to controlling interest	232			536			772	604
Preferred stock dividends	8			13			29	16
Net income available to common shareholders	$ 224			$ 523			$ 743	$ 588
Weighted average common shares outstanding - basic (in shares)	545,818			549,690			549,434	391,699
Effect of dilutive securities (in shares)	4,001			1,156			4,765	1,014
Weighted average common shares outstanding - diluted (in shares)	549,819			550,846			554,199	392,713
Basic earnings per common share (in dollars per share)	$ 0.41			$ 0.95			$ 1.35	$ 1.50
Diluted earnings per common share (in dollars per share)	$ 0.41			$ 0.95			$ 1.34	$ 1.50