XML 61 R2.htm IDEA: XBRL DOCUMENT
v3.22.0.1

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Notes) | 12 Months Ended
--- | ---
Dec. 31, 2021
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] |
|  |  |  | Additions (Deductions) |  |  |  |
|  | Balance at |  | Charged to |  | Charged to |  | Other |  | Balance at
|  | Beginning of |  | Costs and |  | Other |  | (Deductions) |  | End of
|  | Year |  | Expense |  | Accounts |  | Additions |  | Year
Reserves and allowances deducted |  |  |  |  |  |  |  |  |  |
from asset accounts: |  |  |  |  |  |  |  |  |  |
Valuation allowance for deferred tax assets |  |  |  |  |  |  |  |  |  |
Year Ended December 31, 2021 |  | $ | 4,732 |  |  | $ | (596) |  | a | $ | (49) |  | b | $ | — |  |  | $ | 4,087 |
Year Ended December 31, 2020 |  | 4,576 |  |  | 200 |  | c | (16) |  | b | (28) |  | d | 4,732 |
Year Ended December 31, 2019 |  | 4,507 |  |  | 50 |  | e | 19 |  | b | — |  |  | 4,576 |
Reserves for non-income taxes: |  |  |  |  |  |  |  |  |  |
Year Ended December 31, 2021 |  | $ | 82 |  |  | $ | 18 |  |  | $ | — |  |  | $ | (41) |  | f | $ | 59 |
Year Ended December 31, 2020 |  | 58 |  |  | 21 |  |  | (1) |  |  | 4 |  | f | 82 |
Year Ended December 31, 2019 |  | 62 |  |  | — |  |  | — |  |  | (4) |  | f | 58 |
a.Primarily relates to a $219 million decrease associated with U.S. federal net operating losses (NOLs) utilized during 2021, a $105 million decrease related to expiration of U.S. foreign tax credits, and a $228 million decrease associated with PT Rio Tinto NOLs resulting from positive evidence supporting future taxable income against which NOLs can be used. b.Relates to a valuation allowance for tax benefits primarily associated with actuarial (gains) losses for U.S. defined benefit plans included in other comprehensive income (loss). c.Primarily relates to a $250 million increase in U.S. federal NOL carryforwards, partly offset by a $75 million decrease in U.S. foreign tax credits associated with expirations, and a $11 million decrease in U.S. deferred tax assets for which no benefit is expected to be realized. d.Relates to sale of interest in Kisanfu. e.Primarily relates to a $208 million increase in U.S. federal deferred tax assets for which no benefit is expected to be realized, partly offset by a $98 million decrease in U.S. foreign tax credits associated with expirations and prior-year adjustments, and a $44 million decrease in U.S. federal and state NOL carryforwards f.Represents amounts paid or adjustments to reserves based on revised estimates.

X
- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
Name: | srt_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock
Namespace Prefix: | srt_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | srt_ValuationAndQualifyingAccountsAbstract
Namespace Prefix: | srt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration