XML 45 R36.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Note 12 - Equity Compensation Plans (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2022
Notes Tables |
Share-Based Payment Arrangement, Option, Activity [Table Text Block] |
|  | Stock Option |  |  | Restricted Stock |  |  | PSU |
|  | Number of Shares |  |  | Weighted Average Exercise Price |  |  | Aggregate Intrinsic Value |  |  | Number of Shares |  |  | Weighted Average Grant Date Fair Value Per Share |  |  | Number of Shares |  |  |  | Weighted Average Grant Date Fair Value Per Share |
|  |  |  |  |  |  |  |  |  | (in millions) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding at December 31, 2021 |  |  | 5,067,098 |  |  | $ | 115.73 |  |  | $ | 572.6 |  |  |  | 351,504 |  |  | $ | 161.33 |  |  |  | 163,123 |  |  |  | $ | 192.99 |
Granted |  |  | 653,175 |  |  | $ | 196.67 |  |  |  |  |  |  |  | 181,380 |  |  | $ | 195.93 |  |  |  | 111,333 |  |  |  | $ | 168.63 |
Dividend reinvestment |  |  | — |  |  | $ | — |  |  |  |  |  |  |  | — |  |  | $ | — |  |  |  | 1,021 |  |  |  |  | N/A |
Exercised or lapsed |  |  | (1,206,156 | ) |  | $ | 92.22 |  |  | $ | 110.0 |  |  |  | (197,238 | ) |  | $ | 156.30 |  |  |  | (54,927 | ) |  |  | $ | 174.42 |
Canceled, expired or forfeited |  |  | (224,492 | ) |  | $ | 182.28 |  |  |  |  |  |  |  | (33,177 | ) |  | $ | 181.99 |  |  |  | (21,406 | ) |  |  | $ | 202.55 |
Outstanding at September 30, 2022 |  |  | 4,289,625 |  |  | $ | 131.15 |  |  | $ | 168.9 |  |  |  | 302,469 |  |  | $ | 182.89 |  |  |  | 199,144 |  |  |  | $ | 195.31 |
Exercisable at September 30, 2022 |  |  | 2,919,198 |  |  | $ | 108.37 |  |  | $ | 181.4 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercisable at December 31, 2021 |  |  | 3,173,592 |  |  | $ | 89.14 |  |  | $ | 443.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nonvested at September 30, 2022 |  |  | 1,370,427 |  |  |  |  |  |  |  |  |  |  |  | 302,469 |  |  |  |  |  |  |  | 199,144 |  |  |  |  |  |
Expected to vest at September 30, 2022 |  |  | 1,181,072 |  |  |  |  |  |  |  |  |  |  |  | 263,954 |  |  |  |  |  |  |  | 153,219 |  | (1) |  |  |  |
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
|  | 2022 |  |  | 2021 |
Option pricing model |  | Black-Scholes |  |  | Black-Scholes |
Expected volatility |  |  | 25.33 | % |  |  | 23.66 | %
Risk-free interest rate |  |  | 1.55 | % |  |  | 0.39 | %
Expected term in years |  |  | 4.2 |  |  |  | 4.3 |
Dividend yield |  |  | 0.60 | % |  |  | 0.63 | %
Weighted average grant date fair value per stock option |  | $ | 42.25 |  |  | $ | 35.14 |

X
- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_TableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration