Fair Value Measurements - Fair Value, Assets Measured on Nonrecurring Basis, Valuation Techniques (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Aircraft value publications
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Range Median or Average	$ 46
Aircraft value publications | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Range Median or Average	40
Aircraft value publications | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Range Median or Average	51
Aircraft condition adjustments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Range Median or Average	1
Aircraft condition adjustments | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Range Median or Average	(4)
Aircraft condition adjustments | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Range Median or Average	5
Fair Value Measurements Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Fair Value	62	$ 120
Level 3 | Fair Value Measurements Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Fair Value	62	120
Customer financing assets | Fair Value Measurements Nonrecurring | Valuation, Market Approach
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Fair Value	47	110
Customer financing assets | Level 3 | Fair Value Measurements Nonrecurring | Valuation, Market Approach
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Fair Value	$ 47	$ 110