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Receivables, net, Contract Assets and Contract Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2018
Revenue from Contract with Customer [Abstract] |
Schedule of Receivables, Net, Contract Assets and Contract Liabilities | Receivables, net, contract assets and contract liabilities were as follows (in millions):
|  | 2018 |  |  | 2017 |
Receivables, net |  | $ | 2,444 |  |  | $ | 2,265 |
Contract assets |  | 9,472 |  |  | 7,992 |
Contract liabilities |  | 6,491 |  |  | 7,028 |

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- Definition Tabular disclosure of contract balances and changes in contract balances. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130551-203045 + Details
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