Capital Stock - Dividends Common Stock (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2025	Sep. 30, 2024
Equity [Abstract]
Rate Per Share (in dollars per share)	$ 0.22	$ 0.22	$ 0.22	$ 0.21	$ 0.21	$ 0.21	$ 0.66	$ 0.63
Total Dividends Paid (In millions)	$ 170	$ 170	$ 170	$ 156	$ 158	$ 160	$ 510	$ 474