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Schedule II | 12 Months Ended
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Dec. 31, 2018
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] |
Description | Balance at Beginning of Year |  | Cumulative effect adjustment for adoption of ASU 2016-13 (a) |  | Credit loss exposure (a) |  | Write-offs (c) |  |  |  | Balance at End of Year
Year Ended December 31, 2021: |  |  |  |  |  |  |  |  |  |  |
Allowances for credit losses | $ | 105 |  |  | n/a |  | 28 |  |  | (25) |  |  |  |  | $ | 108 |
Year Ended December 31, 2020: |  |  |  |  |  |  |  |  |  |  |
Allowances for credit losses (b) | $ | 74 |  |  | 10 |  |  | 49 |  |  | (27) |  |  |  |  | $ | 105 |
Year Ended December 31, 2019: |  |  |  |  |  |  |  |  |  |  |
Allowances for uncollectible accounts | $ | 68 |  |  | n/a |  | 23 |  |  | (17) |  |  |  |  | $ | 74 |
(a) Following the adoption of FASB ASC Topic 326 as of January 1, 2020, we record credit loss reserves to Allowance for credit losses when we establish Trade accounts receivable if credit losses are expected over the asset's contractual life. As a result of the adoption of FASB ASC Topic 326, we recorded a net reduction to opening retained earnings on January 1, 2020 related to the establishment of credit loss reserves on Trade accounts receivable and recorded a corresponding increase in the Allowance for credit losses, a contra Trade accounts receivable account. Prior period amounts have not been restated and are presented in accordance with FASB ASC Topic 310. Amounts shown within credit loss exposure above were established through selling, general and administrative expense. (b) Beginning in 2020, Allowance for uncollectible accounts are referred to as Allowance for credit losses within our consolidated balance sheets. (c) Represents actual write-offs of uncollectible accounts.

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- 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
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