Defined Contribution Plan Vesting Period

No definition available.

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- Definition

As of the balance sheet date, the aggregate estimated unrecognized future compensation costs for unvested 2007 Stock Incentive Plan shares.

+ References

No definition available.

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- Definition

The maximum number of shares authorized to be granted and issued under the 2007 Stock Incentive Plan

+ References

No definition available.

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- Definition

Shares distributed under post employment provisions.

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No definition available.

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- Definition

Number of shares granted to external directors under the 2007 Stock Incentive Plan.

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No definition available.

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- Definition

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

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- Definition

Amount of cost for defined contribution plan.

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- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

+ References

No definition available.

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- Definition

Percentage employer matches of the employee's percentage contribution matched.

+ References

No definition available.

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

Description of service or performance condition required to be met for earning right to award under share-based payment arrangement. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Percentage of vesting of award under share-based payment arrangement.

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Employee Incentive Plans (Narrative) (Details) - USD ($) $ in Millions	6 Months Ended		218 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	10.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Match	50.00%
Defined Contribution Plan Vesting Period	6 years
401(k) plan contribution expense	$ 4	$ 4
Maximum shares of stock distributable under 2007 Stock Incentive Plan	160,000,000		160,000,000
Shares granted to external directors			162,344
2007 Stock Incentive Plan Compensation Expense	$ 59	$ 54
Estimated Future 2007 Stock Incentive Plan Compensation Expense	$ 28		$ 28
Post employment shares distribution			5,979,912
Awards Granted On December 31, 2021 Onwards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rights, description	For awards granted on December 31, 2021 onwards, restricted stock units vest and become distributable to participants 20% on each vesting date, which is on or about May 9 of each year
Grants Prior To December 31, 2021 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rights, description	The vesting and distribution of grants prior to December 31, 2021 remain in accordance with the following schedule: (a) 10% on the first vesting date, which is on or about May 9 of each year; and (b) an additional 15% on each of the following six anniversaries of the first vesting.
External Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rights, description	20%
All Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rights, description	(b) annual awards granted to all directors on December 31 of each year are fully vested and distributed immediately on grant date.
2007 Stock Incentive Plan (Shares) \| External Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	5 years
2007 Stock Incentive Plan (Shares) \| External Director [Member] \| Commencing One Year After Grant Date [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage per year	20.00%