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Stock-Based Compensation (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	231
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	116
Share-based Payment Arrangement, Expense, Tax Benefit	$ 85	$ 80	$ 91
Proceeds from Stock Options Exercised	26	22	20
Share-based Payment Arrangement, Exercise of Option, Tax Benefit	63	27	32
Employee Service Share Based Compensation Tax Benefit Realized From Vesting Of Performance Share Units	106	57	80
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount	$ 300
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition	2 years 3 months 18 days
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Vested In Period Total Fair Value	$ 447	$ 273	$ 346
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 91.95
Performance Share Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 93.48	$ 96.39	$ 96.15
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested	$ 506	$ 263	$ 427
Stock Appreciation Rights (SARs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 91.03
Stock Options/Stock Appreciation Rights SARS [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 21.72	$ 24.66	$ 21.80
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value	$ 245	$ 46	$ 110

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Disclosure of the aggregate tax benefit realized from the vesting of performance share units during the annual period.

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