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Acquisitions - Summary of Preliminary Estimated Fair Values of GET Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Feb. 25, 2019	Dec. 31, 2018
Assets acquired
Goodwill	$ 8,150,671		$ 2,396,544
General Electric Company
Assets acquired
Cash and cash equivalents		$ 174,334
Accounts receivable		525,966
Inventories		1,185,574
Other current assets		64,115
Property, plant & equipment		1,086,245
Goodwill		5,758,264
Other noncurrent assets		211,081
Total assets acquired		12,345,579
Liabilities assumed
Current liabilities		1,514,189
Contingent consideration		440,000
Other noncurrent liabilities		522,465
Total liabilities assumed		2,476,654
Net assets acquired		9,868,925
Net assets acquired		86,765
General Electric Company | Trade Names
Assets acquired
Intangible assets acquired		50,000
General Electric Company | Customer relationships
Assets acquired
Intangible assets acquired		550,000
General Electric Company | Patents
Assets acquired
Intangible assets acquired		1,210,000
General Electric Company | Backlog
Assets acquired
Intangible assets acquired		$ 1,530,000

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