Condensed Consolidated Statements of Shareholders' Equity (Unaudited) (Parenthetical) - USD ($) shares in Millions, $ 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	Dec. 31, 2024	Dec. 31, 2023
Statement of Stockholders' Equity [Abstract]
Dividends declared per share (in dollars per share)	$ 0.665	$ 0.665	$ 0.665	$ 0.665	$ 0.665	$ 0.665	$ 1.995	$ 1.995
Treasury shares held in trust (in shares)	1	1	1	1	1	1	1	1	1	1
Treasury shares held in trust	$ 29	$ 29	$ 29	$ 29	$ 29	$ 29	$ 29	$ 29	$ 29	$ 29
Common stock	$ 18	$ 18	$ 18	$ 18	$ 18	$ 18	$ 18	$ 18	$ 18	$ 18