v3.20.4

Share-based Compensation - Narrative (Detail) - USD ($) |  | 12 Months Ended
--- | --- | ---
Oct. 29, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Tax (expense) benefits recognized for stock-based compensation |  | $ 32,000,000 | $ 27,000,000 | $ 27,000,000
Excess tax benefit related to share-based compensation |  | 10,000,000 | 3,000,000 | 4,000,000
Expected dividend payments |  | 0 |  |
Amount received on stock options exercised |  | $ 72,000,000 | 84,000,000 | 39,000,000
Long Term Incentive Plans |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Shares authorized and available for awards |  | 26,100,000 |  |
Charges for plan |  | $ 376,000,000 | $ 339,000,000 | $ 307,000,000
Risk-free interest rate, minimum |  | 1.20% | 1.00% | 0.80%
Risk-free interest rate, maximum |  | 1.90% | 1.90% | 2.10%
Intrinsic value of exercised options |  | $ 45,000,000 | $ 48,000,000 | $ 59,000,000
Amount received on stock options exercised |  | 26,000,000 | 45,000,000 | 30,000,000
Tax benefit realized from exercise of stock options |  | 33,000,000 | 31,000,000 | $ 34,000,000
Unrecognized compensation cost |  | $ 0 | $ 0 |
Long Term Incentive Plans | Minimum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Expected life |  | 5 years 11 months 23 days |  |
Volatility rate |  | 42.00% |  |
Long Term Incentive Plans | Maximum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Expected life |  | 6 years 3 months |  |
Volatility rate |  | 45.00% |  |
Long Term Incentive Plans | Performance Share Units |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Weighted average grant date fair value of units granted (in dollars per share) | $ 167.64 |  |  |
Compensation cost recognized period | 3 years |  |  |
Weighted-average period for recognition of compensation cost |  | 2 years | 2 years | 2 years 7 months 6 days
Fair value of vested shares |  | $ 0 | $ 0 | $ 6,000,000
Unrecognized compensation cost |  | $ 89,000,000 | $ 135,000,000 | $ 143,000,000
Long Term Incentive Plans | Performance Share Units | Financial Performance Conditions |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Weighted average grant date fair value of units granted (in dollars per share) |  | $ 0 |  |
Shares granted during the period (in shares) |  | 0 |  |
Long Term Incentive Plans | Performance Share Units | Market Performance Conditions |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Weighted average grant date fair value of units granted (in dollars per share) |  | $ 164.92 | $ 141.64 | $ 121.18
Shares granted during the period (in shares) |  | 335,567 |  |
Long Term Incentive Plans | Performance Share Units | Minimum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Granted common shares per target units | 0 |  |  |
Long Term Incentive Plans | Performance Share Units | Maximum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Granted common shares per target units | 2 |  |  |
Long Term Incentive Plans | Restricted Share Units |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Weighted average grant date fair value of units granted (in dollars per share) |  | $ 129.05 | $ 111.62 | $ 84.77
Award vesting period |  | 3 years |  |
Weighted-average period for recognition of compensation cost |  | 1 year 6 months | 1 year 6 months | 1 year 6 months
Shares granted during the period (in shares) |  | 2,616,364 |  |
Fair value of vested shares |  | $ 372,000,000 | $ 325,000,000 | $ 263,000,000
Unrecognized compensation cost |  | $ 502,000,000 | $ 501,000,000 | $ 484,000,000
Special Termination Benefits | Long Term Incentive Plans | Maximum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Award vesting period | 1 year |  |  |

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- Definition Amount of tax benefit for recognition of expense of award under share-based payment arrangement. + 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 (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (a)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + 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 (a)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + 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 (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + 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 (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash. + 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)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The estimated amount of dividends to be paid to holders of the underlying shares (expected dividends) over the option's term. Dividends are taken into account because payment of dividends to shareholders reduces the fair value of the underlying shares, and option holders generally do not receive dividends. + 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)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. + 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)(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The maximum risk-free interest rate assumption that is used in valuing an option on its own shares. + References No definition available. + Details
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