Earnings Per Common Share - Reconciliation of Numerator and Denominator for Basic and Diluted Earnings Per Share (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Earnings Per Share [Abstract]
Net income attributable to common shareholders - Basic	$ 277	$ 280	$ 462	$ 450
Net income attributable to common shareholders - Diluted	$ 277	$ 280	$ 462	$ 450
Weighted-average common shares outstanding - Basic (in shares)	195	195	195	190
Effect of dilutive common stock equivalents (in shares)	0	0	0	0
Weighted-average common shares outstanding - Diluted (in shares)	195	195	195	190