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Acquisitions	12 Months Ended
Acquisitions	Dec. 31, 2020
Business Combinations [Abstract]
Acquisitions	Acquisitions 2020 Acquisitions During the year ended December 31, 2020, we completed acquisitions and purchases of intangible assets for total consideration of approximately $744 million, net of cash acquired. In aggregate, $248 million was attributed to intangible assets, $446 million to goodwill and $50 million to net assets acquired. These acquisitions generally enhance the breadth and depth of our offerings and expand our expertise in engineering and other functional areas. Pro forma results of operations for these acquisitions have not been presented because they are not material to the consolidated results of operations, either individually or in the aggregate. For all intangible assets acquired and purchased during the year ended December 31, 2020, patents and developed technology have a weighted-average useful life of 4.1 years, customer relationships have a weighted-average useful life of 4.7 years, and trade names and other have a weighted-average useful life of 4.6 years. Acquisition of Fitbit In January 2021, we closed the acquisition of Fitbit, a leading wearables brand for $2.1 billion.