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Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2021

Share-based Payment Arrangement [Abstract]

Stock Option Activity [Table Text Block]

Stock option activity for the year ended December 31, 2021 is summarized in the table below:

			Shares						Weighted- Average Exercise Price						Weighted- Average Remaining Contractual Life						Aggregate Intrinsic Value
			(in millions)												(in years)						(in millions)
Outstanding at beginning of period			28						$	211
Granted			5						329
Exercised			(7)						175
Forfeited			(1)						297
Outstanding at end of period			25						241						6.3						$	6,610
Exercisable at end of period			12						179						4.7						3,932
Vested and expected to vest, end of period			25						240						6.2						6,509

Restricted Share Activity [Table Text Block]

Restricted share activity for the year ended December 31, 2021 is summarized in the table below:

(shares in millions)						Shares						Weighted-Average Grant Date Fair Value per Share
Nonvested at beginning of period						4						$	256
Granted						2						352
Vested						(2)						246
Nonvested at end of period						4						303

Other Share-Based Compensation Data [Table Text Block]

Other Share-Based Compensation Data

(in millions, except per share amounts)						For the Years Ended December 31,
						2021						2020						2019
Stock Options
Weighted-average grant date fair value of shares granted, per share						$	71					$	54					$	46
Total intrinsic value of stock options exercised						1,519						1,736						1,398
Restricted Shares
Weighted-average grant date fair value of shares granted, per share						352						303						259
Total fair value of restricted shares vested						$	560					$	574					$	545
Employee Stock Purchase Plan
Number of shares purchased						1						1						1
Share-Based Compensation Items
Share-based compensation expense, before tax						$	800					$	679					$	697
Share-based compensation expense, net of tax effects						719						619						641
Income tax benefit realized from share-based award exercises						173						208						201

(in millions, except years)						December 31, 2021
Unrecognized compensation expense related to share awards						$	905
Weighted-average years to recognize compensation expense						1.3

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

The principal assumptions the Company used in calculating grant-date fair value for stock options were as follows:

						For the Years Ended December 31,
						2021						2020						2019
Risk-free interest rate						0.7% - 1.2%						0.2% - 1.4%						1.5% - 2.5%
Expected volatility						29.2% - 29.8%						22.2% - 29.5%						19.4% - 21.6%
Expected dividend yield						1.3% - 1.5%						1.4% - 1.7%						1.4% - 1.8%
Forfeiture rate						5.0%						5.0%						5.0%
Expected life in years						4.8						5.1						5.3

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Tabular disclosure of activity for award under share-based payment arrangement. Includes, but is not limited to, outstanding award at beginning and end of year, granted, exercised, forfeited, and weighted-average grant date fair value.

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

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