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Impairment and Other Charges (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Long-lived asset impairments |  | $ 0 |  | $ 2,629 | $ 1,603
Inventory costs and write-downs |  | 0 |  | 505 | 458
Severance |  | 15 |  | 384 | 172
Joint ventures |  | 0 |  | 0 | 154
Other |  | 35 |  | 281 | 119
Total impairments and other charges | [1] | 12 |  | 3,799 | 2,506
Impairment of real estate properties |  |  |  | 616 |
Impairment of drilling-services equipment |  |  |  | 297 |
Impairment of hydraulic fracturing equipment |  |  |  | 1,000 | 759
Impairment of real estate facilities |  |  |  |  | 215
Impairment of legacy drilling equipment |  |  |  |  | 243
Impairment of intangible assets |  |  |  | 131 | 98
Impairment of right-of-use assets associated with operating leases |  |  |  | 191 | 139
Impairment of other fixed assets |  |  |  | 394 | 148
Restructuring and Related Cost, Accelerated Depreciation |  | 36 |  | 0 | 0
Right-of-Use Assets Obtained in Exchange for Operating Lease Liability |  | 433 | [2] | 447 | 1,362
Impairments and other charges |  | 12 |  | 3,799 | 2,506
Impairment of hydraulic fracturing equipment |  |  |  | 1,000 | 759
Impairment of legacy drilling equipment |  |  |  |  | 243
Impairment of real estate facilities |  |  |  |  | 215
Impairment of right-of-use assets associated with operating leases |  |  |  | 191 | 139
Impairment of intangible assets |  |  |  | 131 | 98
Impairment of other fixed assets |  |  |  | 394 | 148
Structured Real Estate Transaction |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Sale and Leaseback Transaction, Gain (Loss), Net |  | (74) |  | 0 | 0
Disposal Group, Including Discontinued Operation, Assets, Current |  | 358 |  |  |
Real Estate Investments, Unconsolidated Real Estate and Other Joint Ventures |  | $ 349 |  |  |
LesseeOperatingLeaseVariableLeasePaymentTermsPercentage |  | 1.35% |  |  |
Right-of-Use Assets Obtained in Exchange for Operating Lease Liability |  | $ 276 |  |  |
Increase (Decrease) in Operating Lease Liability |  | 276 |  |  |
Proceeds from Sale of Real Estate Held-for-investment |  | $ 87 |  | 0 | 0
Lessee, Operating Lease, Renewal Term |  | 5 years |  |  |
Lessee, Operating Lease, Existence of Option to Extend [true false] |  | true |  |  |
Minimum lease term |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Sale Leaseback Transaction, Lease Terms |  | twelve |  |  |
Maximum lease term |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Sale Leaseback Transaction, Lease Terms |  | fifteen |  |  |
Number of options to extend |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Lessee, Operating Lease, Option to Extend |  | two |  |  |
Completion and Production |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Total impairments and other charges |  | $ 42 |  | 2,400 | 1,600
Drilling and Evaluation |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Total impairments and other charges |  | 9 |  | 1,400 | 849
Corporate and Other [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Total impairments and other charges |  | $ (39) |  | $ 62 | $ 56
[1] | Impairments and other charges are as follows: -For the year ended December 31, 2021, amount includes approximately $42 million attributable to Completion and Production, $9 million attributable to Drilling and Evaluation, and a $39 million net gain attributable to Corporate and other. -For the year ended December 31, 2020, amount includes approximately $2.4 billion attributable to Completion and Production, $1.4 billion attributable to Drilling and Evaluation, and $62 million attributable to Corporate and other. -For the year ended December 31, 2019, amount includes approximately $1.6 billion attributable to Completion and Production, $849 million attributable to Drilling and Evaluation, and $56 million attributable to Corporate and other.
[2] |

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