Consolidated Statements of Shareholders' Equity (Parenthetical) - USD ($) shares in Millions, $ in Millions	3 Months Ended			12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Dividends declared per share (in dollars per share)	$ 0.665	$ 0.665	$ 0.605	$ 2.66	$ 2.66	$ 2.42
Treasury shares held in trust (in shares)	1	1	1	1	1	1
Treasury shares held in trust	$ 29	$ 29	$ 29	$ 29	$ 29	$ 29
Equity	75,382	75,730	76,636	75,382	75,730	76,636
Common Shares
Equity	$ 18	$ 18	$ 18	$ 18	$ 18	$ 18