Summary of Significant Accounting Policies	12 Months Ended
Dec. 31, 2020
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	2. Summary of Significant Accounting Policies Cash and Cash Equivalents Cash and Cash Equivalents consist of all highly liquid investments with maturities of three months or less at the date of purchase. Fair Value of Financial Instruments The carrying amounts of cash and cash equivalents, receivables and payables approximated fair value because of the relatively short maturity of these instruments. See Note 13 “Derivative Financial Instruments” for the fair value of derivative financial instruments. Inventories Inventories consist primarily of oilfield and industrial finished goods. Inventories are stated at the lower of cost or net realizable value and using average cost methods. Allowances for excess and obsolete inventories are determined based on the Company’s historical usage of inventory on hand as well as its future expectations. As of December 31, 2020 and 2019, the Company reported inventory of $262 million and $465 million, respectively (net of inventory reserves of $39 million and $26 million, respectively). Property, Plant and Equipment Property, plant and equipment are stated at cost. Expenditures for major improvements that extend the lives of property and equipment are capitalized while minor replacements, maintenance and repairs are charged to expense as incurred. Disposals are removed at cost less accumulated depreciation with any resulting gain or loss reflected in the results of operations for the respective period. Depreciation is provided using the straight-line method over the estimated useful lives of individual items. Long-Lived Assets, Including Goodwill and Other Acquired Intangible Assets Long-lived assets other than goodwill include property, plant and equipment, operating right-of-use assets and intangible assets. The Company evaluates the recoverability of long-lived assets other than goodwill for possible impairment whenever events or circumstances indicate that the carrying amount of such assets may not be recoverable. Recoverability of these assets is measured by a comparison of the carrying amounts to the future undiscounted cash flows the assets are expected to generate. If such review indicates that the carrying amount of property and equipment and intangible assets is not recoverable, the carrying amount of such assets is reduced to fair value. If such review indicates that the carrying amount of long-lived assets other than goodwill is not recoverable, the carrying amount of such assets is reduced to fair value. In addition to the recoverability assessment, the Company routinely reviews the remaining estimated useful lives of long-lived assets other than goodwill. If the Company changes the estimated useful life assumption for any asset, the remaining unamortized balance is amortized or depreciated over the revised estimated useful life. The Company conducts goodwill impairment testing annually in the fourth quarter of each fiscal year, and more frequently on an interim basis, when an event occurs or changes in circumstances indicate that the fair value of a reporting unit may have declined below its carrying value. Events or circumstances which could indicate a probable impairment include, but are not limited to, a significant reduction in worldwide oil and gas prices or drilling; a significant reduction in profitability or cash flow of oil and gas companies or drilling contractors; a significant reduction in worldwide well completion and remediation activity; a significant reduction in capital investment by other oilfield service companies; or a significant increase in worldwide inventories of oil or gas. The Company had no goodwill as of December 31, 2020. The Company evaluates goodwill for impairment at the reporting unit level, which is defined as an operating segment or one level below that constitutes a business for which financial information is available and is regularly reviewed by management. In 2020, to align with the updates to the operational and management structure, the Company combined two reporting units within the U.S. reportable segment, U.S. Energy and U.S. Supply Chain, each with goodwill of zero prior to and after the combination. As a result, the Company had four reporting units – U.S. Energy, U.S. Process Solutions, Canada and International. Prior to 2020, the Company had five reporting units for this purpose – U.S. Energy, U.S. Supply Chain, U.S. Process Solutions, Canada and International. The Company tests goodwill for impairment by comparing the fair value of a reporting unit to its carrying value. If the carrying amount exceeds the fair value of a reporting unit, an impairment loss is recognized in an amount equal to that excess, but not to exceed the total amount of goodwill allocated to that reporting unit. The Company determines the fair value of both goodwill and other long-lived assets primarily using the discounted cash flow method and in the case of goodwill, a multiples-based market approach for comparable companies when applicable. The starting point for each reporting unit’s projected cash flow from operations is the detailed annual plan or updated forecast. The detailed planning and forecasting process takes into consideration a multitude of factors including worldwide rig activity, inflationary forces, pricing strategies, customer analysis, operational issues, competitor analysis, capital spending requirements, working capital requirements and customer needs among other items which impact the individual reporting unit projections. Cash flows beyond the specific operating plans were estimated using a terminal value calculation, which incorporated historical and forecasted financial cyclical trends for each reporting unit and also considered long-term earnings growth rates. The financial and credit market volatility impacts the fair value measurement by adjusting the discount rate. In evaluating the reasonableness of the Company’s fair value estimates, the Company considers, among other factors, the relationship between the market capitalization of the Company and the total estimated fair value of its reporting units less debt. Given the current volatile market environment, the Company utilizes third-party valuation advisors to assist with these valuations. These analyses include significant judgments as mentioned above, including management’s short-term and long-term forecast of operating performance, discount rates based on the weighted average cost of capital, revenue growth rates, profitability margins, capital expenditures, the timing of future cash flows based on an eventual recovery of the oil and gas industry, and in the case of long-lived assets, the remaining useful life and service potential of the asset, all of which were classified as level 3 inputs under the fair value hierarchy. Discount rates utilized to value the reporting units were in a range from 11.5% to 12.8% during the fair value valuation in the first quarter of 2020. Foreign Currency The functional currency for most of the Company’s foreign operations is the local currency. Certain foreign operations use the U.S. dollar as the functional currency. For those that have local currency as functional the cumulative effects of translating the balance sheet accounts from the functional currency into the U.S. dollar at current exchange rates are included in accumulated other comprehensive income (loss). Revenues and expenses are translated at average exchange rates in effect during the period. Accordingly, financial statements of these foreign subsidiaries are remeasured to U.S. dollars for consolidation purposes using current rates of exchange for monetary assets and liabilities and historical rates of exchange for nonmonetary assets and related elements of expense. Revenue and expense elements are remeasured at rates that approximate the rates in effect on the transaction dates. For all operations, gains or losses from remeasuring foreign currency transactions into the reporting currency are included in other expense. Net foreign currency transactions were a gain of $2 million, a loss of $1 million and a loss of $2 million for the years ended December 31, 2020, 2019 and 2018, respectively, and were included in other expense in the accompanying consolidated statements of operations. Revenue Recognition The Company’s primary source of revenue is the sale of energy products and an extensive selection of products for industrial applications based upon purchase orders or contracts with customers. The majority of revenue is recognized at a point in time once the Company has determined that the customer has obtained control over the product. Control is typically deemed to have been transferred to the customer when the product is shipped, delivered or picked up by the customer. The Company does not grant extended payment terms. Revenue is recognized net of any taxes collected from customers, which are subsequently remitted to proper government authorities. Shipping and handling costs for product shipments occur prior to the customer obtaining control of the goods and are recorded in cost of products. The amount of revenue recognized reflects the consideration to which the Company expects to be entitled to receive in exchange for products sold. Revenue is recorded at the transaction price net of estimates of variable consideration, which may include product returns, trade discounts and allowances. The Company accrues for variable consideration using the expected value method. Estimates of variable consideration are included in revenue to the extent that it is probable that a significant reversal in the amount of cumulative revenue recognized will not occur. Cost of Products Cost of products includes the cost of inventory sold and related items, such as vendor consideration, inventory allowances, amortization of intangibles and inbound and outbound freight. Warehousing, Selling and Administrative Expenses Warehousing, selling and administrative expenses include branch, distribution center and regional expenses (including costs such as compensation, benefits and rent), depreciation and corporate general expenses. Vendor Consideration The Company receives funds from vendors in the normal course of business, principally as a result of purchase volumes. Generally, these vendor funds do not represent the reimbursement of specific, incremental and identifiable costs incurred by the Company to sell the vendor’s product. Therefore, the Company treats these funds as a reduction of inventory when purchased and once these goods are sold to third parties the associated amount is credited to cost of products. The Company develops accrual rates for vendor consideration based on the provisions of the arrangements in place, historical trends, purchases and future expectations. Due to the complexity and diversity of the individual vendor agreements, the Company performs analyses and reviews historical trends throughout the year and confirms actual amounts with select vendors to ensure the amounts earned are appropriately recorded. Amounts accrued throughout the year could be impacted if actual purchase volumes differ from projected annual purchase volumes, especially in the case of programs that provide for increased funding when graduated purchase volumes are met. Income Taxes The liability method is used to account for income taxes. Deferred tax assets and liabilities are determined based on differences between the financial reporting and tax basis of assets and liabilities and are measured using the enacted tax rates that will be in effect when the differences are expected to reverse. Valuation allowances are established when necessary to reduce deferred tax assets to amounts which are more-likely-than-not to be realized. Concentration of Credit Risk The Company grants credit to its customers, which operate primarily in the energy, industrial and manufacturing markets. Concentrations of credit risk are limited because the Company has a large number of geographically diverse customers, thus spreading trade credit risk. The Company controls credit risk through credit evaluations, credit limits and monitoring procedures. The Company performs periodic credit evaluations of its customers’ financial condition and, generally, does not require collateral but may require letters of credit or prepayments for certain sales. Allowances for doubtful accounts are established based on an evaluation of accounts receivable aging, and where applicable, specific reserves on an individual customer basis. With the adoption of ASU 2016-13 the estimated AFDA reflects the Company’s immediate recognition of current expected credit losses by incorporating the historical loss experience, as well as current and future market conditions that are reasonably available. Judgments in the estimate of AFDA include global economic and business conditions, oil and gas industry and market conditions, customers’ financial conditions and account receivables past due. Balances that remain outstanding after the Company has used reasonable collection efforts are written off. No single customer represents more than 10% of the Company’s revenue. Stock-Based Compensation Compensation expense for the Company’s stock-based compensation plans is measured using the fair value method required by ASC Topic 718 “Compensation—Stock Compensation”. Under this guidance the fair value of the award is measured on the grant date and amortized to expense using the straight-line method over the shorter of the vesting period or the remaining requisite service period. Forfeitures are recognized as they occur. Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect reported and contingent amounts of assets and liabilities as of the date of the financial statements and reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. The Company periodically evaluates its estimates and judgments that are most critical in nature, which are related to allowance for doubtful accounts, inventory reserves, impairment of goodwill and other long-lived assets, purchase price allocation of acquisitions, vendor consideration, stock-based compensation, pension plan obligations and income taxes. On an ongoing basis, the Company evaluates such estimates by comparing to historical experience and trends, which form the basis for making judgments about the carrying value of assets and liabilities. Contingencies The Company accrues for costs relating to litigation claims and other contingent matters, when such liabilities become probable and reasonably estimable. Such estimates may be based on advice from third parties or on management’s judgment, as appropriate. Revisions to contingent liabilities are reflected in income in the period in which different facts or information become known or circumstances change that affect the Company’s previous judgments with respect to the likelihood or amount of loss. Amounts paid upon the ultimate resolution of contingent liabilities may be materially different from previous estimates and could require adjustments to the estimated reserves to be recognized in the period such new information becomes known. In circumstances where the most likely outcome of a contingency can be reasonably estimated, the Company accrues a liability for that amount. Where the most likely outcome cannot be estimated, a range of potential losses is established, and, if no one amount in that range is more likely than others, the low end of the range is accrued.

Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2020

Summary of Significant Accounting Policies

2. Summary of Significant Accounting Policies

Cash and Cash Equivalents

Cash and Cash Equivalents consist of all highly liquid investments with maturities of three months or less at the date of purchase.

Fair Value of Financial Instruments

The carrying amounts of cash and cash equivalents, receivables and payables approximated fair value because of the relatively short maturity of these instruments. See Note 13 “Derivative Financial Instruments” for the fair value of derivative financial instruments.

Inventories

Inventories consist primarily of oilfield and industrial finished goods. Inventories are stated at the lower of cost or net realizable value and using average cost methods. Allowances for excess and obsolete inventories are determined based on the Company’s historical usage of inventory on hand as well as its future expectations. As of December 31, 2020 and 2019, the Company reported inventory of $262 million and $465 million, respectively (net of inventory reserves of $39 million and $26 million, respectively).

Property, Plant and Equipment

Property, plant and equipment are stated at cost. Expenditures for major improvements that extend the lives of property and equipment are capitalized while minor replacements, maintenance and repairs are charged to expense as incurred. Disposals are removed at cost less accumulated depreciation with any resulting gain or loss reflected in the results of operations for the respective period. Depreciation is provided using the straight-line method over the estimated useful lives of individual items.

Long-Lived Assets, Including Goodwill and Other Acquired Intangible Assets

Long-lived assets other than goodwill include property, plant and equipment, operating right-of-use assets and intangible assets. The Company evaluates the recoverability of long-lived assets other than goodwill for possible impairment whenever events or circumstances indicate that the carrying amount of such assets may not be recoverable. Recoverability of these assets is measured by a comparison of the carrying amounts to the future undiscounted cash flows the assets are expected to generate. If such review indicates that the carrying amount of property and equipment and intangible assets is not recoverable, the carrying amount of such assets is reduced to fair value. If such review indicates that the carrying amount of long-lived assets other than goodwill is not recoverable, the carrying amount of such assets is reduced to fair value.

In addition to the recoverability assessment, the Company routinely reviews the remaining estimated useful lives of long-lived assets other than goodwill. If the Company changes the estimated useful life assumption for any asset, the remaining unamortized balance is amortized or depreciated over the revised estimated useful life.

The Company conducts goodwill impairment testing annually in the fourth quarter of each fiscal year, and more frequently on an interim basis, when an event occurs or changes in circumstances indicate that the fair value of a reporting unit may have declined below its carrying value. Events or circumstances which could indicate a probable impairment include, but are not limited to, a significant reduction in worldwide oil and gas prices or drilling; a significant reduction in profitability or cash flow of oil and gas companies or drilling contractors; a significant reduction in worldwide well completion and remediation activity; a significant reduction in capital investment by other oilfield service companies; or a significant increase in worldwide inventories of oil or gas. The Company had no goodwill as of December 31, 2020.

The Company evaluates goodwill for impairment at the reporting unit level, which is defined as an operating segment or one level below that constitutes a business for which financial information is available and is regularly reviewed by management. In 2020, to align with the updates to the operational and management structure, the Company combined two reporting units within the U.S. reportable segment, U.S. Energy and U.S. Supply Chain, each with goodwill of zero prior to and after the combination. As a result, the Company had four reporting units – U.S. Energy, U.S. Process Solutions, Canada and International. Prior to 2020, the Company had five reporting units for this purpose – U.S. Energy, U.S. Supply Chain, U.S. Process Solutions, Canada and International.

The Company tests goodwill for impairment by comparing the fair value of a reporting unit to its carrying value. If the carrying amount exceeds the fair value of a reporting unit, an impairment loss is recognized in an amount equal to that excess, but not to exceed the total amount of goodwill allocated to that reporting unit.

The Company determines the fair value of both goodwill and other long-lived assets primarily using the discounted cash flow method and in the case of goodwill, a multiples-based market approach for comparable companies when applicable. The starting point for each reporting unit’s projected cash flow from operations is the detailed annual plan or updated forecast. The detailed planning and forecasting process takes into consideration a multitude of factors including worldwide rig activity, inflationary forces, pricing strategies, customer analysis, operational issues, competitor analysis, capital spending requirements, working capital requirements and customer needs among other items which impact the individual reporting unit projections. Cash flows beyond the specific operating plans were estimated using a terminal value calculation, which incorporated historical and forecasted financial cyclical trends for each reporting unit and also considered long-term earnings growth rates. The financial and credit market volatility impacts the fair value

measurement by adjusting the discount rate. In evaluating the reasonableness of the Company’s fair value estimates, the Company considers, among other factors, the relationship between the market capitalization of the Company and the total estimated fair value of its reporting units less debt. Given the current volatile market environment, the Company utilizes third-party valuation advisors to assist with these valuations. These analyses include significant judgments as mentioned above, including management’s short-term and long-term forecast of operating performance, discount rates based on the weighted average cost of capital, revenue growth rates, profitability margins, capital expenditures, the timing of future cash flows based on an eventual recovery of the oil and gas industry, and in the case of long-lived assets, the remaining useful life and service potential of the asset, all of which were classified as level 3 inputs under the fair value hierarchy. Discount rates utilized to value the reporting units were in a range from 11.5% to 12.8% during the fair value valuation in the first quarter of 2020.

Foreign Currency

The functional currency for most of the Company’s foreign operations is the local currency. Certain foreign operations use the U.S. dollar as the functional currency. For those that have local currency as functional the cumulative effects of translating the balance sheet accounts from the functional currency into the U.S. dollar at current exchange rates are included in accumulated other comprehensive income (loss). Revenues and expenses are translated at average exchange rates in effect during the period.

Accordingly, financial statements of these foreign subsidiaries are remeasured to U.S. dollars for consolidation purposes using current rates of exchange for monetary assets and liabilities and historical rates of exchange for nonmonetary assets and related elements of expense. Revenue and expense elements are remeasured at rates that approximate the rates in effect on the transaction dates. For all operations, gains or losses from remeasuring foreign currency transactions into the reporting currency are included in other expense. Net foreign currency transactions were a gain of $2 million, a loss of $1 million and a loss of $2 million for the years ended December 31, 2020, 2019 and 2018, respectively, and were included in other expense in the accompanying consolidated statements of operations.

Revenue Recognition

The Company’s primary source of revenue is the sale of energy products and an extensive selection of products for industrial applications based upon purchase orders or contracts with customers. The majority of revenue is recognized at a point in time once the Company has determined that the customer has obtained control over the product. Control is typically deemed to have been transferred to the customer when the product is shipped, delivered or picked up by the customer. The Company does not grant extended payment terms. Revenue is recognized net of any taxes collected from customers, which are subsequently remitted to proper government authorities. Shipping and handling costs for product shipments occur prior to the customer obtaining control of the goods and are recorded in cost of products.

The amount of revenue recognized reflects the consideration to which the Company expects to be entitled to receive in exchange for products sold. Revenue is recorded at the transaction price net of estimates of variable consideration, which may include product returns, trade discounts and allowances. The Company accrues for variable consideration using the expected value method. Estimates of variable consideration are included in revenue to the extent that it is probable that a significant reversal in the amount of cumulative revenue recognized will not occur.

Cost of Products

Cost of products includes the cost of inventory sold and related items, such as vendor consideration, inventory allowances, amortization of intangibles and inbound and outbound freight.

Warehousing, Selling and Administrative Expenses

Warehousing, selling and administrative expenses include branch, distribution center and regional expenses (including costs such as compensation, benefits and rent), depreciation and corporate general expenses.

Vendor Consideration

The Company receives funds from vendors in the normal course of business, principally as a result of purchase volumes. Generally, these vendor funds do not represent the reimbursement of specific, incremental and identifiable costs incurred by the Company to sell the vendor’s product. Therefore, the Company treats these funds as a reduction of inventory when purchased and once these goods are sold to third parties the associated amount is credited to cost of products. The Company develops accrual rates for vendor consideration based on the provisions of the arrangements in place, historical trends, purchases and future expectations. Due to the complexity and diversity of the individual vendor agreements, the Company performs analyses and reviews historical trends throughout the year and confirms actual amounts with select vendors to ensure the amounts earned are appropriately recorded. Amounts accrued throughout the year could be impacted if actual purchase volumes differ from projected annual purchase volumes, especially in the case of programs that provide for increased funding when graduated purchase volumes are met.

Income Taxes

The liability method is used to account for income taxes. Deferred tax assets and liabilities are determined based on differences between the financial reporting and tax basis of assets and liabilities and are measured using the enacted tax rates that will be in effect when the differences are expected to reverse. Valuation allowances are established when necessary to reduce deferred tax assets to amounts which are more-likely-than-not to be realized.

Concentration of Credit Risk

The Company grants credit to its customers, which operate primarily in the energy, industrial and manufacturing markets. Concentrations of credit risk are limited because the Company has a large number of geographically diverse customers, thus spreading trade credit risk. The Company controls credit risk through credit evaluations, credit limits and monitoring procedures. The Company performs periodic credit evaluations of its customers’ financial condition and, generally, does not require collateral but may require letters of credit or prepayments for certain sales. Allowances for doubtful accounts are established based on an evaluation of accounts receivable aging, and where applicable, specific reserves on an individual customer basis. With the adoption of ASU 2016-13 the estimated AFDA reflects the Company’s immediate recognition of current expected credit losses by incorporating the historical loss experience, as well as current and future market conditions that are reasonably available. Judgments in the estimate of AFDA include global economic and business conditions, oil and gas industry and market conditions, customers’ financial conditions and account receivables past due. Balances that remain outstanding after the Company has used reasonable collection efforts are written off. No single customer represents more than 10% of the Company’s revenue.

Stock-Based Compensation

Compensation expense for the Company’s stock-based compensation plans is measured using the fair value method required by ASC Topic 718 “Compensation—Stock Compensation”. Under this guidance the fair value of the award is measured on the grant date and amortized to expense using the straight-line method over the shorter of the vesting period or the remaining requisite service period. Forfeitures are recognized as they occur.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect reported and contingent amounts of assets and liabilities as of the date of the financial statements and reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. The Company periodically evaluates its estimates and judgments that are most critical in nature, which are related to allowance for doubtful accounts, inventory reserves, impairment of goodwill and other long-lived assets, purchase price allocation of acquisitions, vendor consideration, stock-based compensation, pension plan obligations and income taxes. On an ongoing basis, the Company evaluates such estimates by comparing to historical experience and trends, which form the basis for making judgments about the carrying value of assets and liabilities.

Contingencies

The Company accrues for costs relating to litigation claims and other contingent matters, when such liabilities become probable and reasonably estimable. Such estimates may be based on advice from third parties or on management’s judgment, as appropriate. Revisions to contingent liabilities are reflected in income in the period in which different facts or information become known or circumstances change that affect the Company’s previous judgments with respect to the likelihood or amount of loss. Amounts paid upon the ultimate resolution of contingent liabilities may be materially different from previous estimates and could require adjustments to the estimated reserves to be recognized in the period such new information becomes known.

In circumstances where the most likely outcome of a contingency can be reasonably estimated, the Company accrues a liability for that amount. Where the most likely outcome cannot be estimated, a range of potential losses is established, and, if no one amount in that range is more likely than others, the low end of the range is accrued.