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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2022

Accounting Policies [Abstract]

Schedule of marketable securities

The carrying values of investments in debt securities consisted of the following at December 31, 2022 and 2021 (in millions):

						December 31, 2022						December 31, 2021
Available-for-sale securities
Time deposits						$	285					$	790
Commercial paper						39						2
Debt securities						13						8
Total available-for-sale securities						337						800
Held-to-maturity securities
Corporate bonds						177						37
Total held-to-maturity securities						177						37
Total investment in debt securities						$	514					$	837

Schedule of property, plant and equipment

Estimated useful lives and residual values for our property and equipment are as follows:

Property and Equipment Type						Estimated Useful Life						Residual Value
Aircraft1						25 years						20		%
Inflight entertainment systems						5-10 years						0		%
Aircraft parts						Fleet life						10		%
Flight equipment leasehold improvements						Lower of lease term or economic life						0		%
Ground property and equipment						2-10 years						0		%
Leasehold improvements—other						Lower of lease term or economic life						0		%
Buildings on leased land						Lease term						0		%

(1) The estimated remaining useful life of our Embraer E190 fleet ranges from 0-2 years with an average residual value of 12%.

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- Definition

Tabular disclosure of marketable securities. This may consist of investments in certain debt and equity securities, short-term investments and other assets.

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- Definition

Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

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