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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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

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Intangible Assets - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Finite-Lived Intangible Assets
Amortization expense	$ 11	$ 10	$ 23	$ 22
Developed technology
Finite-Lived Intangible Assets
Intangible assets acquired	$ 44
Estimated remaining useful life	5 years
Customer relationships
Finite-Lived Intangible Assets
Intangible assets acquired	$ 12
Estimated remaining useful life	12 years
Trade Names
Finite-Lived Intangible Assets
Intangible assets acquired	$ 7
Estimated remaining useful life	5 years
Backlog
Finite-Lived Intangible Assets
Intangible assets acquired	$ 3
Estimated remaining useful life	5 years