Contingencies and Litigation - Narrative (Details) $ in Millions		1 Months Ended	12 Months Ended
	Dec. 13, 2019 USD ($)	Feb. 28, 2018 complaint class_action	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Jun. 18, 2018 USD ($)
Loss Contingencies [Line Items]
Product warranty expense			$ 12	$ 14	$ 15
Product warranty accrual			7	$ 6
Pending Litigation | Transactions to Combine Xerox and Fuji Xerox
Loss Contingencies [Line Items]
Number of complaints filed | complaint		5
Number of class actions filed | class_action		4
Termination fee						$ 183
Loss contingency, damages sought (in dollars)						$ 1,000
Contractual and Corporate Obligations Guarantee and surety bonds
Loss Contingencies [Line Items]
Guarantor obligations, maximum exposure, undiscounted			$ 348
HP Inc. | Miami Firefighters' Relief & Pension Fund V. Icahn, Et Al
Loss Contingencies [Line Items]
Marketable Securities, Gain (Loss)	$ 128