Percentage of target payout on which performance-based restricted stock units are based.

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- Definition

Percentage of Target Payout on which Performance Based Time-vested Restricted Stock Units are Based

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- Definition

Description of the period of time over which an employee's right to exercise an stock appreciation right is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, which may be expressed in a variety of ways (for example, in years, month and year).

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The date when stock appreciation rights expire as specified in the award agreement, which may be presented in a variety of ways (for example, year, month and year, day, month and year, quarter of a year).

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Performance Payout, Percent

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Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Performance Period

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- Definition

Number of shares issuable under the Company's Deferred Compensation Plan that allows highly-compensated employees to defer salary, annual incentive awards and certain equity-based compensation.

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Shares issued to satisfy stock appreciation rights exercised during the current year's period.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Number of common stock held in a trust that has been set up specifically to accumulate stock for the sole purpose of distribution to participating employees but not yet earned.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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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.

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Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Number of shares authorized for issuance under share-based payment arrangement.

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Share-Based Compensation - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expense	$ 238	$ 245	$ 265
SARs vesting period	4 years
SARs terms of award	10 years
Stock Issued under SARs exercised (in shares)	400,000
Percentage of Target Payout on which Performance Based Time-vested Restricted Stock Units are Based	100.00%
Percentage Of Target Payout On Which Performance Based Restricted Stock Units Are Based	200.00%
Unrecognized compensation expense for all non-vested share-based awards	$ 247
Weighted-average remaining life non-vested share-based awards	1 year 11 months 8 days
Shares were authorized for future grants	8,600,000
Shares issuable under deferred compensation plan	259,000
Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferral plan, shares held in trust	93,000
Performance-Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock units vesting period	3 years
Performance period	3 years
Weighted average remaining vesting term	1 year 3 months 7 days
Performance-Based Restricted Stock Units \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance payout, percent	0.00%
Performance-Based Restricted Stock Units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance payout, percent	200.00%
Time-Vested Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock units vesting period	3 years
Weighted average remaining vesting term	10 months 20 days
Time-Vested Restricted Stock Units \| Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock units vesting period	1 year
Acquisitions and other restructurings
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expense	$ 1	20	50
Acquisitions and other restructurings \| CR Bard Inc
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expense		$ 16	$ 40