Condensed Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Income Statement [Abstract]
Net sales	$ 724	$ 724
Cost of sales	(526)	(511)
Gross Profit	197	214
Selling, general, and administrative expenses	(75)	(69)
Other operating credits and charges, net	(2)	1
Income from operations	120	145
Non-operating income (expense):
Interest expense	(3)	(4)
Investment income	4	6
Other non-operating income (expense)	(5)	1
Income before income taxes	116	148
Provision for income taxes	(26)	(41)
Equity in unconsolidated affiliate	0	1
Net income	$ 91	$ 108
Net income per share of common stock:
Net income per share, basic (in dollars per share)	$ 1.30	$ 1.49
Net income per share, diluted (in dollars per share)	$ 1.30	$ 1.48
Average shares of common stock used to compute net income per share:
Basic (in shares)	70	72
Diluted (in shares)	70	72