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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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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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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
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No definition available.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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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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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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No definition available.

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-Paragraph 2
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Share-based Compensation Plans (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant (in shares)	39,800
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares outstanding (in shares)	5,100
Number of units
Outstanding non-vested at December 31 (in shares)	5,100
Performance Share Units (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares outstanding (in shares)	600
Number of units
Outstanding non-vested at December 31 (in shares)	600
Restricted Stock Units (RSUs) and Performance Share Units (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares outstanding (in shares)	5,088	4,568
Share-based payment arrangement, expense	$ 100	$ 140	$ 80
Number of units
Outstanding non-vested at January 1 (in shares)	4,568
Granted (in shares)	3,130
Vested (in shares)	(2,136)
Forfeited (in shares)	(474)
Outstanding non-vested at December 31 (in shares)	5,088	4,568
Weighted-average grant date fair value per share
Outstanding non-vested at January 1 (in dollars per share)	$ 36.27
Granted (in dollars per share)	45.50
Vested (in dollars per share)	37.66
Forfeited (in dollars per share)	42.03
Outstanding non-vested at December 31 (in dollars per share)	$ 40.83	$ 36.27