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Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2019

Commitments and Contingencies Disclosure [Abstract]

Firm Commitments and Options to Purchase Aircraft and Summary of Commitments

As of March 31, 2019, United had firm commitments and options to purchase aircraft from The Boeing Company ("Boeing"), Airbus S.A.S. ("Airbus") and Embraer S.A. ("Embraer") presented in the table below:

Aircraft Type		Number of Firm Commitments (a)
Airbus A350		45
Boeing 737 MAX		171
Boeing 777-300ER		4
Boeing 787		20
Embraer E175		25
(a) United also has options and purchase rights for additional aircraft.

The table below summarizes United's commitments as of March 31, 2019, which include aircraft and related spare engines, aircraft improvements and all non-aircraft capital commitments:

		(in billions)
Last nine months of 2019		$	2.5
2020		5.4
2021		3.7
2022		3.1
2023		2.0
After 2023		7.0
		$	23.7

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- Definition

Tabular disclosure of key provisions of an arrangement under which the entity has agreed to purchase goods or services over a period of time greater than one year or the normal operating cycle, if longer, including the item for which expenditures will be made, minimum quantities, milestones, time period and committed amount.

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