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ACCOUNTS RECEIVABLE - NET | 9 Months Ended
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Sep. 30, 2021
Receivables [Abstract] |
Accounts Receivable - Net |
| September 30, 2021 |  | December 31, 2020
Trade | $ | 7,427 |  |  | $ | 7,029 |
Less - Allowance for doubtful accounts | (188) |  |  | (202) |
| $ | 7,239 |  |  | $ | 6,827 |
Trade receivables include $2,049 million and $1,589 million of unbilled balances under long-term contracts as of September 30, 2021, and December 31, 2020. These amounts are billed in accordance with the terms of the customer contracts to which they relate.

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- Definition The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2196772 + Details
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- References No definition available. + Details
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