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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Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Amount of loss from impairment of right-of-use asset from operating lease.

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- Definition

Weighted average discount rate for operating lease calculated at point in time.

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-Topic 842
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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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10-Q Leases (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
10-Q Leases (Narrative) (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Lessee, Lease and Other Information [Line Items]
Operating Lease, Weighted Average Remaining Lease Term	7 years	7 years	7 years
Weighted Average Discount Rate, Percent	3.53%	2.98%	2.69%
Operating Lease, Impairment Loss		$ 34	$ 136	$ 258
2023-2024 Business Efficiency Program
Lessee, Lease and Other Information [Line Items]
Operating Lease, Impairment Loss	$ 23
Minimum [Member]
Lessee, Lease and Other Information [Line Items]
Lessee, Operating Lease, Term of Contract	1 year	1 year
Maximum [Member]
Lessee, Lease and Other Information [Line Items]
Lessee, Operating Lease, Term of Contract	12 years	12 years