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Retirement Benefits (Schedule Of Defined Benefit Plan Net Periodic Benefit Cost Amounts Recorded in Consolidated Statement of Income) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Compensation and benefits expense | $ (1,457) | $ (1,364) | $ (3,183) | $ (2,809)
Other net benefit credits | (60) | (59) | (118) | (121)
Pension Benefits |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Compensation and benefits expense | 5 | 7 | 11 | 15
Other net benefit credits | (60) | (59) | (118) | (122)
Net benefit credit | $ (55) | $ (52) | $ (107) | $ (107)

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