Retirement and Deferred Compensation Plans (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Retirement and Deferred Compensation Plans [Abstract]
Net periodic benefit expense (recovery)	$ (41)	$ (41)	$ (11)
Expected benefit payments in the next fiscal year	100
Defined contribution plans expense	102	107	100
Deferred compensation plans expense	$ (4)	$ 32	$ 35

No definition available.

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The compensation expense recognized during the period pertaining to the deferred compensation arrangement.

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Amount of benefit for defined benefit plan expected to be paid in next fiscal year following current fiscal year.

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Amount of net periodic benefit cost (credit) for defined benefit plan.

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Amount of cost for defined contribution plan.

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