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Equity - Other Share-based Awards under the SIP (Details) - USD ($) shares in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Other share-based awards under the SIP
Amount of Directors' retainer paid in stock	$ 160,000
Total share-based compensation expense included in net income	37,000,000	$ 33,000,000	$ 29,000,000
RSUs | Director
Other share-based awards under the SIP
Total share-based compensation expense included in net income	$ 2,000,000	$ 2,000,000	$ 2,000,000
Awards outstanding (in shares)	205
Carrying value of share units outstanding	$ 11,000,000
RSUs | Director | Minimum
Other share-based awards under the SIP
Minimum period over which deferred shares may be transferred after director's termination of service	6 months
RSUs | Director | Maximum
Other share-based awards under the SIP
Minimum period over which deferred shares may be transferred after director's termination of service	10 years 6 months

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Represents the carrying value of units issued by the employer under other share-based awards.

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The amount of the non-employee director's retainer that is paid in shares of common stock or restricted stock.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

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