Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Changes in the Carrying Value of Goodwill by Segment

The following table presents the changes in the carrying value of goodwill by segment for the years ended December 31, 2018 and 2019 (in millions):



	As Previously Reported
	Core Platform			Other Bets			Rides		Eats		Freight		Other Bets		ATG and Other Technology Programs		Total Goodwill
Balance as of January 1, 2018	$	39		$	—		$	—	$	—	$	—	$	—	$	—	$	39
Acquisitions	14			100			—		—		—		—		—		114
Balance as of December 31, 2018	53			100			—		—		—		—		—		153
Reallocation due to change in segments	(53		)	(100		)	25		13		—		100		15		—
Acquisitions	—			—			—		—		—		—		14		14
Balance as of December 31, 2019	$	—		$	—		$	25	$	13	$	—	$	100	$	29	$	167

Schedule of Finite-Lived Intangible Assets

The components of intangible assets, net as of December 31, 2018 and 2019 were as follows (in millions except years):



	Gross Carrying Value		Accumulated Amortization			Net Carrying Value		Weighted Average Remaining Useful Life - Years
December 31, 2018
Developed technology ⁽¹⁾	$	90	$	(20	)	$	70	4
Patents	15		(3		)	12		9
Other	3		(3		)	—		—
Intangible assets	$	108	$	(26	)	$	82



	Gross Carrying Value		Accumulated Amortization			Net Carrying Value		Weighted Average Remaining Useful Life - Years
December 31, 2019
Developed technology ⁽¹⁾	$	94	$	(35	)	$	59	3
Patents	16		(4		)	12		8
Other	3		(3		)	—		—
Intangible assets	$	113	$	(42	)	$	71

⁽¹⁾Developed technology intangible assets include in-process research and development (“IPR&D”), which is not subject to amortization, of $27 million and $31 million as of December 31, 2018 and 2019, respectively.

Schedule of Future Amortization Expense

The estimated aggregate future amortization expense for intangible assets subject to amortization as of December 31, 2019 is summarized below (in millions):



	Estimated Future Amortization Expense
Year Ending December 31,
2020	$	12
2021	10
2022	9
2023	4
2024	1
Thereafter	4
Total	$	40