Earnings Per Share - Calculation of Earnings Per Share and the Reconciliation of Earnings Per Share to Earnings Per Diluted Share (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest [Abstract]
Net income available to common shareholders	$ 478	$ 480
Average common shares outstanding - basic (in shares)	671,052,320	685,749,673
Effect of dilutive stock-based awards	5,000,000	5,000,000
Average common shares outstanding - diluted (in shares)	676,040,080	690,633,531
Earnings per share (in dollars per share)	$ 0.71	$ 0.70
Earnings per diluted share (in dollars per share)	$ 0.71	$ 0.70
Anti-dilutive stock-based awards excluded from diluted shares (in shares)	2,000,000	3,000,000