Earnings Per Share - Schedule of Weighted Average Number of Shares (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Earnings Per Share [Abstract]
Net (loss)/earnings available to common shareholders	$ (149)	$ 193	$ (563)	$ (1,026)
Weighted average number of shares issued, basic (in shares)	605.5	594.0	603.9	592.8
Participating securities (in shares)	0.3	0.3	0.3	0.3
Weighted average number of shares issued, basic (in shares)	605.2	593.7	603.6	592.5
Dilutive potential common shares (in shares)		2.4
Diluted weighted average shares outstanding (in shares)	605.5	596.4	603.9	592.8
Participating securities (in shares)	0.3	0.3	0.3	0.3
Weighted average diluted shares (millions) (in shares)	605.2	596.1	603.6	592.5
Basic (loss)/earnings per share (in dollars per share)	$ (0.25)	$ 0.32	$ (0.93)	$ (1.73)
Diluted (loss)/earnings per share (in dollars per share)	$ (0.25)	$ 0.32	$ (0.93)	$ (1.73)