Shareholders' Equity Repurchase Activity (Details) shares in Millions, $ in Billions	Jun. 30, 2022 USD ($) shares
Repurchase Activity [Abstract]
Stock Repurchase Program, Number of Shares Authorized to be Repurchased	$ 5.1
Treasury Stock Shares Acquired From Inception \| shares	224
Treasury Stock Value Acquired Cost Method From Inception	$ 9.0

Equity impact of the cost of common stock that were repurchased from inception of the stock repurchase program. Recorded using the cost method.

No definition available.

Name:	hal_TreasuryStockValueAcquiredCostMethodFromInception
Namespace Prefix:	hal_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant