Variable Interest Entities (Details) - USD ($) $ in Millions |
9 Months Ended | |
|---|---|---|
Sep. 30, 2017 |
Dec. 31, 2016 |
|
| Variable Interest Entity [Line Items] | ||
| Total assets | $ 5,992 | $ 4,056 |
| Total liabilities | 5,844 | 4,058 |
| Current Assets | ||
| Variable Interest Entity [Line Items] | ||
| Total assets | 4,317 | 2,722 |
| Current Liabilities | ||
| Variable Interest Entity [Line Items] | ||
| Total liabilities | 3,831 | 2,422 |
| Noncurrent Assets | ||
| Variable Interest Entity [Line Items] | ||
| Total assets | 1,675 | 1,334 |
| Noncurrent Liabilities | ||
| Variable Interest Entity [Line Items] | ||
| Total liabilities | $ 2,013 | $ 1,636 |
| IAE International Aero Engines AG | ||
| Variable Interest Entity [Line Items] | ||
| Variable Interest Entity, Methodology for Determining Whether Entity is Primary Beneficiary | Pratt & Whitney holds a 61% net interest in the IAE International Aero Engines AG (IAE) collaboration with MTU Aero Engines AG (MTU) and Japanese Aero Engines Corporation (JAEC) and a 49.5% ownership interest in IAE. IAE's business purpose is to coordinate the design, development, manufacturing and product support of the V2500 program through involvement with the collaborators. | |
| Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage | 49.50% | |
| International Aero Engines LLC | ||
| Variable Interest Entity [Line Items] | ||
| Variable Interest Entity, Methodology for Determining Whether Entity is Primary Beneficiary | Additionally, Pratt & Whitney, JAEC and MTU are participants in International Aero Engines, LLC (IAE LLC), whose business purpose is to coordinate the design, development, manufacturing and product support for the PW1100G-JM engine for the Airbus A320neo aircraft and the PW1400G-JM engine for the Irkut MC21 aircraft. Pratt & Whitney holds a 59% net interest and a 59% ownership interest in IAE LLC. IAE and IAE LLC retain limited equity with the primary economics of the programs passed to the participants. | |
| Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage | 59.00% |