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Note 4 - Stock-based Compensation (Tables)

3 Months Ended

Mar. 31, 2022

Notes Tables

Share-based Payment Arrangement, Cost by Plan [Table Text Block]

Millions, for the Three Months Ended March 31,		2022				2021
Stock-based compensation, before tax:
Stock options		$	4			$	4
Retention awards			22				16
ESPP			4				-
Total stock-based compensation, before tax		$	30			$	20
Excess tax benefits from equity compensation plans		$	17			$	15

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

Weighted-Average Assumptions		2022				2021
Risk-free interest rate			1.6	%			0.4	%
Dividend yield			1.9	%			1.9	%
Expected life (years)			4.4				4.6
Volatility			28.7	%			28.3	%
Weighted-average grant-date fair value of options granted		$	51.92			$	39.97

Share-based Payment Arrangement, Option, Activity [Table Text Block]

	Options (thous.)			Weighted-Average Exercise Price				Weighted-Average Remaining Contractual Term (in years)				Aggregate Intrinsic Value (millions)
Outstanding at January 1, 2022			2,106			$	149.84				6.3			$	215
Granted			328				244.35				N/A				N/A
Exercised			(322	)			127.49				N/A				N/A
Forfeited or expired			(6	)			206.59				N/A				N/A
Outstanding at March 31, 2022			2,106			$	167.82				6.8			$	222
Vested or expected to vest at March 31, 2022			2,086			$	167.27				6.8			$	221
Options exercisable at March 31, 2022			1,407			$	142.05				5.6			$	185

Cash Proceeds Received and Tax Benefit from Share-based Payment Awards [Table Text Block]

Millions, for the Three Months Ended March 31,		2022				2021
Intrinsic value of stock options exercised		$	42			$	23
Cash received from option exercises			15				30
Treasury shares repurchased for employee payroll taxes			(5	)			(6	)
Tax benefit realized from option exercises			5				4
Aggregate grant-date fair value of stock options vested			13				14

Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]

		Shares (thous.)				Weighted-Average Grant-Date Fair Value
Nonvested at January 1, 2022			1,287			$	165.10
Granted			232				244.40
Vested			(402	)			125.26
Forfeited			(18	)			187.57
Nonvested at March 31, 2022			1,099			$	196.05

Schedule of Nonvested Performance-based Units Activity [Table Text Block]

		Shares (thous.)				Weighted-Average Grant-Date Fair Value
Nonvested at January 1, 2022			641			$	173.03
Granted			209				244.35
Vested			(54	)			161.57
Unearned			(163	)			161.57
Forfeited			(8	)			200.18
Nonvested at March 31, 2022			625			$	200.51

X

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