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Capital Stock - Additional Information (Details) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended							6 Months Ended	9 Months Ended		12 Months Ended
	Sep. 30, 2025 USD ($) RepurchaseAuthorization Anniversary $ / shares shares	Jun. 30, 2025 $ / shares	Mar. 31, 2025 $ / shares	Dec. 31, 2024 $ / shares	Sep. 30, 2024 $ / shares shares	Jun. 30, 2024 $ / shares	Mar. 31, 2024 $ / shares	Jun. 30, 2025 $ / shares shares	Sep. 30, 2025 USD ($) RepurchaseAuthorization Anniversary shares	Sep. 30, 2024 shares	Dec. 31, 2024 $ / shares	Dec. 31, 2022	May 31, 2025 USD ($)
Class of Stock [Line Items]
Authorized amount | $	$ 900								$ 900				$ 750
Stock repurchased during period (in shares) | shares	0				1,457			13,400	13,417	4,801
Authorization expiration date													2027-12
Stock repurchased during period, average price per share (in usd per share) | $ / shares								$ 32.06
Number of outstanding share repurchase authorizations | RepurchaseAuthorization	2								2
Remaining authorized repurchase amount | $	$ 113								$ 113
Share repurchase authorization, expiration month and year	2026-06								2026-06
Nondeductible percentage excise tax on net value of stock repurchases												1.00%
Common stock, dividends, per share, declared (in usd per share) | $ / shares	$ 0.255	$ 0.255	$ 0.255	$ 0.245	$ 0.245	$ 0.245	$ 0.245				$ 0.98
Performance Based RSUs Equity Settled | 2025 Award Year
Class of Stock [Line Items]
Performance period, performance-based RSUs									3 years
Performance Based RSUs Equity Settled | Maximum | 2025 Award Year
Class of Stock [Line Items]
Payout percentage of target award									200.00%
Performance Based RSUs Equity Settled | Minimum
Class of Stock [Line Items]
Payout percentage of target award									0.00%
Performance Based RSUs Equity Settled | Minimum | 2025 Award Year
Class of Stock [Line Items]
Cliff-vesting period									1 year
Timed-Vested RSUs Equity Settled | 2025 Award Year
Class of Stock [Line Items]
Number of anniversaries of the grant date | Anniversary	3								3
Timed-Vested RSUs Equity Settled | Minimum | 2025 Award Year
Class of Stock [Line Items]
Cliff-vesting period									1 year

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