CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN COMMON STOCKHOLDERS’ INVESTMENT (Parenthetical) - USD ($) shares in Millions, $ in Millions	3 Months Ended	4 Months Ended
Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Statement of Stockholders' Equity [Abstract]
Cash dividends declared (in dollars per share)	$ 1.22	$ 1.45	$ 2.44	$ 2.90
Other comprehensive income (loss), net of tax benefit	$ (11)	$ 5	$ 130	$ 5
Employee incentive plans and other (in shares)	0.5	0.2	0.9	0.4

Amount of tax expense (benefit) allocated to other comprehensive income (loss).

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