v3.21.1
Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Millions |
3 Months Ended |
|
|
| Cash flows from operating activities: |
|
|
| Net loss |
$ (114)
|
$ (2,049)
|
| Adjustments to reconcile net loss to net cash provided by operating activities: |
|
|
| Depreciation and amortization |
79
|
105
|
| Provision for inventory losses |
24
|
125
|
| Deferred income taxes |
(1)
|
(62)
|
| Equity loss in unconsolidated affiliates |
4
|
233
|
| Goodwill and indefinite-lived intangible asset impairment |
|
1,378
|
| Long-lived asset impairment |
|
513
|
| Other, net |
25
|
45
|
| Change in operating assets and liabilities, net of acquisitions: |
|
|
| Receivables |
(5)
|
(27)
|
| Inventories |
28
|
47
|
| Contract assets |
35
|
(5)
|
| Prepaid and other current assets |
33
|
9
|
| Accounts payable |
(22)
|
(54)
|
| Accrued liabilities |
(62)
|
(142)
|
| Contract liabilities |
(5)
|
43
|
| Income taxes payable |
(13)
|
(15)
|
| Other assets/liabilities, net |
(33)
|
(105)
|
| Net cash provided by (used by) operating activities |
(27)
|
39
|
| Cash flows from investing activities: |
|
|
| Purchases of property, plant and equipment |
(49)
|
(68)
|
| Other |
(2)
|
15
|
| Net cash used in investing activities |
(51)
|
(53)
|
| Cash flows from financing activities: |
|
|
| Borrowings against lines of credit and other debt |
17
|
|
| Cash dividends paid |
|
(19)
|
| Financing leases |
(7)
|
(8)
|
| Other |
(13)
|
(16)
|
| Net cash used in financing activities |
(3)
|
(43)
|
| Effect of exchange rates on cash |
(4)
|
1
|
| Decrease in cash and cash equivalents |
(85)
|
(56)
|
| Cash and cash equivalents, beginning of period |
1,692
|
1,171
|
| Cash and cash equivalents, end of period |
1,607
|
1,115
|
| Cash payments during the period for: |
|
|
| Interest |
3
|
3
|
| Income taxes |
$ 9
|
$ 14
|
| X |
- DefinitionCash Payments Receipts During Period For [Abstract]
| Name: |
nov_CashPaymentsReceiptsDuringPeriodForAbstract |
| Namespace Prefix: |
nov_ |
| Data Type: |
xbrli:stringItemType |
| Balance Type: |
na |
| Period Type: |
duration |
|
| X |
- DefinitionImpairment charges recognized during period on goodwill and indefinite-lIved intangible assets.
| Name: |
nov_GoodwillAndIndefiniteLivedIntangibleAssetImpairment |
| Namespace Prefix: |
nov_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
debit |
| Period Type: |
duration |
|
| X |
- DefinitionProvision for inventory losses.
| Name: |
nov_ProvisionForInventoryLosses |
| Namespace Prefix: |
nov_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
debit |
| Period Type: |
duration |
|
| X |
- References
+ Details
| Name: |
us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:stringItemType |
| Balance Type: |
na |
| Period Type: |
duration |
|
| X |
- DefinitionAmount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.
| Name: |
us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
debit |
| Period Type: |
instant |
|
| X |
- DefinitionAmount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.
| Name: |
us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
debit |
| Period Type: |
duration |
|
| X |
- DefinitionThe current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.
| Name: |
us-gaap_DepreciationAndAmortization |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
debit |
| Period Type: |
duration |
|
| X |
- DefinitionAmount of increase (decrease) from effect of exchange rate changes on cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; held in foreign currencies. Excludes amounts for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.
| Name: |
us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
debit |
| Period Type: |
duration |
|
| X |
- DefinitionAmount of cash outflow for principal payment on finance lease.
| Name: |
us-gaap_FinanceLeasePrincipalPayments |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
credit |
| Period Type: |
duration |
|
| X |
- DefinitionThe aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).
| Name: |
us-gaap_ImpairmentOfLongLivedAssetsHeldForUse |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
debit |
| Period Type: |
duration |
|
| X |
- DefinitionAmount of income (loss) for proportionate share of equity method investee's income (loss).
| Name: |
us-gaap_IncomeLossFromEquityMethodInvestments |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
credit |
| Period Type: |
duration |
|
| X |
- DefinitionThe increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.
| Name: |
us-gaap_IncreaseDecreaseInAccountsPayable |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
debit |
| Period Type: |
duration |
|
| X |
- DefinitionThe increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services.
| Name: |
us-gaap_IncreaseDecreaseInAccountsReceivable |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
credit |
| Period Type: |
duration |
|
| X |
- DefinitionThe increase (decrease) during the reporting period in the aggregate amount of expenses incurred but not yet paid.
| Name: |
us-gaap_IncreaseDecreaseInAccruedLiabilities |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
debit |
| Period Type: |
duration |
|
| X |
- DefinitionAmount of increase (decrease) in right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.
| Name: |
us-gaap_IncreaseDecreaseInContractWithCustomerAsset |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
credit |
| Period Type: |
duration |
|
| X |
- DefinitionAmount of increase (decrease) in obligation to transfer good or service to customer for which consideration has been received or is receivable.
| Name: |
us-gaap_IncreaseDecreaseInContractWithCustomerLiability |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
debit |
| Period Type: |
duration |
|
| X |
- DefinitionThe increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities.
| Name: |
us-gaap_IncreaseDecreaseInInventories |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
credit |
| Period Type: |
duration |
|
| X |
- References
+ Details
| Name: |
us-gaap_IncreaseDecreaseInOperatingCapitalAbstract |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:stringItemType |
| Balance Type: |
na |
| Period Type: |
duration |
|
| X |
- DefinitionAmount of increase (decrease) in operating assets after deduction of operating liabilities classified as other.
| Name: |
us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
credit |
| Period Type: |
duration |
|
| X |
- DefinitionAmount of increase (decrease) in prepaid expenses, and assets classified as other.
| Name: |
us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
credit |
| Period Type: |
duration |
|
| X |
- DefinitionAmount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.
| Name: |
us-gaap_InterestPaidNet |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
credit |
| Period Type: |
duration |
|
| X |
- DefinitionAmount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.
| Name: |
us-gaap_NetCashProvidedByUsedInFinancingActivities |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
debit |
| Period Type: |
duration |
|
| X |
- References
+ Details
| Name: |
us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:stringItemType |
| Balance Type: |
na |
| Period Type: |
duration |
|
| X |
- DefinitionAmount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.
| Name: |
us-gaap_NetCashProvidedByUsedInInvestingActivities |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
debit |
| Period Type: |
duration |
|
| X |
- References
+ Details
| Name: |
us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:stringItemType |
| Balance Type: |
na |
| Period Type: |
duration |
|
| X |
- DefinitionAmount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.
| Name: |
us-gaap_NetCashProvidedByUsedInOperatingActivities |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
na |
| Period Type: |
duration |
|
| X |
- References
+ Details
| Name: |
us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:stringItemType |
| Balance Type: |
na |
| Period Type: |
duration |
|
| X |
- DefinitionAmount of income (expense) included in net income that results in no cash inflow (outflow), classified as other.
| Name: |
us-gaap_OtherNoncashIncomeExpense |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
credit |
| Period Type: |
duration |
|
| X |
- DefinitionAmount of cash (inflow) outflow from investing activities classified as other.
| Name: |
us-gaap_PaymentsForProceedsFromOtherInvestingActivities |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
credit |
| Period Type: |
duration |
|
| X |
- DefinitionAmount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.
| Name: |
us-gaap_PaymentsOfDividendsCommonStock |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
credit |
| Period Type: |
duration |
|
| X |
- DefinitionThe cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.
| Name: |
us-gaap_PaymentsToAcquirePropertyPlantAndEquipment |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
credit |
| Period Type: |
duration |
|
| X |
- DefinitionThe cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.
| Name: |
us-gaap_ProceedsFromIssuanceOfLongTermDebt |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
debit |
| Period Type: |
duration |
|
| X |
- DefinitionAmount of cash inflow (outflow) from financing activities classified as other.
| Name: |
us-gaap_ProceedsFromPaymentsForOtherFinancingActivities |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
debit |
| Period Type: |
duration |
|
| X |
- DefinitionThe consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.
| Name: |
us-gaap_ProfitLoss |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
credit |
| Period Type: |
duration |
|
|
