Summary of Significant Accounting Policies (EPS) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Basic earnings per share:
Net income available to common shareholders	$ 516	$ 155	$ 944	$ 819
Weighted average common shares outstanding (in shares)	387,000,000	383,000,000	386,000,000	383,000,000
Basic earnings per share (in dollars per share)	$ 1.33	$ 0.40	$ 2.45	$ 2.14
Diluted earnings per share:
Net income available to common shareholders	$ 516	$ 155	$ 944	$ 819
Income impact of assumed conversions			1	1
Net income available to common shareholders and assumed conversions	$ 516	$ 155	$ 945	$ 820
Weighted average common shares outstanding (in shares)	387,000,000	383,000,000	386,000,000	383,000,000
Incremental shares from assumed conversions (in shares)	3,000,000	2,000,000	2,000,000	2,000,000
Adjusted weighted average shares - diluted (in shares)	390,000,000	385,000,000	388,000,000	385,000,000
Diluted earnings per share (in dollars per share)	$ 1.32	$ 0.40	$ 2.44	$ 2.13
Antidilutive awards excluded from earnings per share (in shares)	20,371	3,231,385	2,040,879	3,230,603