Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of 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 assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit, acquired at the acquisition date.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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Dragtontail Acquisition (Details) - USD ($) $ in Millions			9 Months Ended
Dragtontail Acquisition (Details) - USD ($) $ in Millions	Sep. 07, 2021	Mar. 18, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Business Acquisition [Line Items]
Acquisition of Dragtontail Systems Limited, Net of Cash Acquired		$ 408	$ 0	$ 408
Goodwill			$ 650		$ 597
Dragontail Systems Limited
Business Acquisition [Line Items]
Acquisition of Dragtontail Systems Limited, Net of Cash Acquired	$ 66
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	3
Goodwill	57
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets	$ 11
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	7 years