Other Financial Data (Components of Depreciation and Amortization) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Depreciation	$ 121	$ 122	$ 249	$ 246
Amortization of intangibles excluding capitalized software	76	88	153	180
Amortization of intangibles in Cost of Sales	14	14	28	28
Capitalized Computer Software, Amortization	24	29	50	57
Depreciation and amortization	$ 221	239	$ 452	483
Open Systems International Inc. [Member] \| Order or Production Backlog [Member]
Backlog amortization		$ 6		$ 17

Amortization of intangibles excluding capitalized software

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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- Definition

Amount of expense for amortization of capitalized computer software costs.

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- Definition

Amount of expense for allocation of cost of intangible asset over its useful life directly used in production of good and rendering of service.

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- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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- Definition

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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