Share-Based Compensation And Other Compensation Arrangements (Schedule of Restricted Stock Unit Award Activity) (Details)3 $ in Millions	12 Months Ended
Dec. 31, 2021 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	3 years 1 month 6 days
Incentive Program Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of units, Outstanding at beginning of year	1,423,601
Granted	1,027,507
Number of units, Forfeited	(205,400)
Number of units, Distributed	(196,013)
Number of units, Outstanding at end of year	2,049,695
Total unrecognized compensation cost \| $	$ 258
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	1 year 10 months 24 days
Number of units, Undistributed and Vested	344,125
Employee Incentive Program Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of units, Outstanding at beginning of year	5,163,425
Number of units, Forfeited	(378,881)
Number of units, Distributed	(3,820)
Number of units, Outstanding at end of year	4,780,724
Total unrecognized compensation cost \| $	$ 573
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	1 year 10 months 24 days
Number of units, Undistributed and Vested	985,427
Other Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of units, Outstanding at beginning of year	749,319
Granted	216,782
Number of units, Forfeited	(33,563)
Number of units, Distributed	(233,672)
Number of units, Outstanding at end of year	698,866
Total unrecognized compensation cost \| $	$ 67
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	1 year 10 months 24 days
Number of units, Undistributed and Vested	16,212

Number of units, Undistributed and Vested

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 2
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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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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

Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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