Variable Interest Entities (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Variable Interest Entity [Line Items]
Assets, Current	$ 40,879	$ 43,376
Assets	158,838	162,153
Liabilities, Current	34,794	35,848
Liabilities	86,087	88,269
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Assets, Current	5,989	6,652
Assets, Noncurrent	834	868
Assets	6,823	7,520
Liabilities, Current	7,002	7,365
Liabilities, Noncurrent	61	89
Liabilities	$ 7,063	$ 7,454
International Aero Engines AG [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Qualitative of Quantitative Information, Net Percentage	61.00%
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage	49.50%
International Aero Engines LLC [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Qualitative of Quantitative Information, Net Percentage	59.00%
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage	59.00%