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				6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Earnings Per Share [Abstract]
Net income	$ 311	$ 236	$ 57	$ 16	$ 546	$ 73
Net income attributable to noncontrolling interest	3		3		6	6
Net income attributable to controlling interest	308		54		540	67
Preferred stock dividends	13		2		21	3
Net income available to common shareholders	$ 295		$ 52		$ 519	$ 64
Weighted average common shares outstanding - basic (in shares)	550,297		312,090		551,268	311,843
Effect of dilutive securities (in shares)	6,466		846		5,878	949
Weighted average common shares outstanding - diluted (in shares)	556,763		312,936		557,146	312,792
Basic earnings per common share (in dollars per share)	$ 0.54		$ 0.17		$ 0.94	$ 0.21
Diluted earnings per common share (in dollars per share)	$ 0.53		$ 0.17		$ 0.93	$ 0.21