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Equity Incentive Plans (Tables)

12 Months Ended

Dec. 31, 2025

Equity Incentive Plans [Abstract]

Schedule of Equity Awards

The following table provides the amounts of total compensation expense for the equity incentive plans and the total related tax benefits recognized.

						For the year ended December 31,
($ in millions)						2025						2024						2023
Compensation expense						$	123					$	125					$	73
Income tax benefits						17						18						12

The following table provides the amounts of cash received from exercise of options and the related tax benefits realized on options exercised.

						For the year ended December 31,
($ in millions)						2025						2024						2023
Cash received from exercise of options						$	78					$	189					$	103
Tax benefit realized on options exercised						24						32						16

Schedule of Nonvested Awards

Nonvested awards as of December 31, 2025
($ in millions)						Unrecognized compensation						Weighted average vesting period
Nonqualified stock options						$	15					1.58
Restricted stock units						51						1.79
Performance stock awards						31						1.47
Total						$	97

Schedule of Option Grant Assumptions

Option grant assumptions
						2025						2024						2023
Weighted average expected term						5.9 years						5.7 years						5.8 years
Expected volatility						22.3% - 30.4%						21.2% - 31.6%						20.0% - 31.6%
Weighted average volatility						25.4		%				25.4		%				24.9		%
Expected dividends						1.9% - 2.1%						1.8% - 2.4%						2.4% - 3.3%
Weighted average expected dividends						2.1		%				2.3		%				2.6		%
Risk-free rate						3.5% - 4.6%						3.6% - 5.6%						3.3% - 5.6%

Schedule of Option Activity

Summary of option activity
						For the year ended December 31, 2025
						Number (in thousands)						Weighted average exercise price						Aggregate intrinsic value (in thousands)						Weighted average remaining contractual term (years)
Outstanding as of January 1, 2025						6,393						$	110.46
Granted						482						189.19
Exercised						(1,074)						90.54
Forfeited						(64)						161.99
Expired						(2)						133.44
Outstanding as of December 31, 2025						5,735						120.21						$	504,297					4.9
Outstanding, net of expected forfeitures						5,715						120.01						503,741						4.9
Outstanding, exercisable (“vested”)						4,659						109.44						459,884						4.2

Schedule of Changes in Restricted Stock Units

Changes in restricted stock units
						For the year ended December 31, 2025
						Number (in thousands)						Weighted average grant date fair value
Nonvested as of January 1, 2025						840						$	131.93
Granted						331						192.37
Vested						(350)						137.77
Forfeited						(55)						162.40
Nonvested as of December 31, 2025						766						153.18

Schedule of Changes in Performance Stock Awards

Changes in performance stock awards
						For the year ended December 31, 2025
						Number (in thousands)						Weighted average grant date fair value
Nonvested as of January 1, 2025						642						$	140.46
Granted						182						189.25
Adjustment for performance achievement						(75)						122.81
Vested						(123)						122.81
Forfeited						(23)						151.57
Nonvested as of December 31, 2025						603						160.61

Schedule of Performance Stock Awards Assumptions

Performance stock awards grant assumptions
						2025						2024						2023
Expected term						2.8 years						2.9 years						2.9 years
Expected volatility						26.6		%				27.2		%				24.8		%
Average peer volatility						23.5		%				23.3		%				29.9		%
Risk-free rate						4.1		%				4.5		%				1.7		%

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Schedule of Share-Based Payment Award, Performance Stock Awards , Valuation Assumptions

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Tabular disclosure of share-based payment arrangement.

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Tabular disclosure of number, weighted-average exercise price or conversion ratio, aggregate intrinsic value, and weighted-average remaining contractual term for outstanding options that are fully vested and expected to vest. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.

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Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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