Employee Benefit Plans - Schedule of Performance Unit and Performance Stock Transactions (Details) - Performance Unit - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025	Feb. 28, 2026	Feb. 28, 2025
Number of Shares and Units
Beginning balance (in shares)	493,000	559,000
Granted (in shares)	2,000	8,000
Granted for Performance Multiple (in shares)	0	54,000
Released (in shares)	(122,000)	(267,000)
Ending balance (in shares)	373,000	354,000
Weighted Average Grant Date Fair Value
Beginning balance (in USD per share)	$ 129.87	$ 119.05
Granted (in USD per share)	106.57	134.49
Granted for Performance Multiple (in USD per share)	0	96.61
Released (in USD per share)	126.55	96.61
Ending balance (in USD per share)	$ 131.66	$ 132.97
Performance multiplier (as a percent)			0.00%	125.00%
Intrinsic value of performance units released during the year	$ 15	$ 34
Aggregate intrinsic value of performance units outstanding	$ 54	$ 45
Minimum performance units and stock allowed to be outstanding (in shares)	0
Maximum performance units allowed to be outstanding (in shares)	747,000

Maximum Performance Units and Stock Allowed to be Outstanding

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Minimum Performance Units and Stock Allowed to be Outstanding

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Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period for Performance Multiple

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Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value for Performance Multiple

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Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Performance Multiple

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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 weighted average fair value at grant date for nonvested equity-based awards issued 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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-Publisher FASB
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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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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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Intrinsic value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-4

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Intrinsic value of vested award under share-based payment arrangement. Excludes share and unit options.

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