Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2020

Commitments and Contingencies Disclosure [Abstract]

Firm Commitments and Options to Purchase Aircraft

As of June 30, 2020, United had firm commitments and options to purchase aircraft from The Boeing Company ("Boeing"), Airbus S.A.S. ("Airbus") and Embraer S.A. ("Embraer") as presented in the table below:

		Scheduled Aircraft Deliveries
Aircraft Type	Number of Firm Commitments (a)	Last Six Months of 2020	2021	2022	After 2022
Airbus A321XLR	50	—	—	—	50
Airbus A350	45	—	—	—	45
Boeing 737 MAX	171	16	24	—	131
Boeing 787	16	8	8	—	—
Embraer E175	20	16	4	—	—
(a) United also has options and purchase rights for additional aircraft.

Summary of Commitments

The table below summarizes United's commitments as of June 30, 2020, which include aircraft and related spare engines, aircraft improvements and all non-aircraft capital commitments (in billions):

Last six months of 2020	$	1.8
2021	3.5
2022	1.3
2023	2.7
2024	1.7
After 2024	13.9
	$	24.9

Based on these assumptions as of June 30, 2020, our future payments through the end of the terms of our CPAs are presented in the table below (in billions):

Last six months of 2020	$	0.9
2021	2.3
2022	2.3
2023	1.7
2024	1.6
After 2024	4.5
	$	13.3