Loss Per Common Share - Computation of Basic and Diluted (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Basic and diluted EPS:
Net loss	$ (382)	$ (473)
Weighted average common shares outstanding (in thousands), basic (in shares)	661,181	658,880
Weighted average common shares outstanding (in thousands), diluted (in shares)	661,181	658,880
Basic EPS (in dollars per share)	$ (0.58)	$ (0.72)
Diluted EPS (in dollars per share)	$ (0.58)	$ (0.72)