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Accounting Principles and Practices Accounting Principles and Practices (Tables) | 6 Months Ended
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Jun. 30, 2019
Accounting Policies [Abstract] |
Schedule of New Accounting Pronouncements and Changes in Accounting Principles | As a result of applying the modified retrospective approach to adopt the new leasing standard, the following adjustments were made to the Condensed Consolidated Statements of Financial Position as of January 1, 2019 (in millions):
| December 31, 2018 |  |  |  | January 1, 2019
| As Reported |  | Adjustments |  | As Adjusted
Assets |  |  |  |  |
Operating lease right-of-use assets | $ | — |  |  | $ | 1,021 |  |  | $ | 1,021 |
Other non-current assets | $ | 448 |  |  | $ | 78 |  |  | $ | 526 |
Liabilities |  |  |  |  |
Other current liabilities | $ | 936 |  |  | $ | 219 |  |  | $ | 1,155 |
Non-current operating lease liabilities | $ | — |  |  | $ | 1,014 |  |  | $ | 1,014 |
Other non-current liabilities | $ | 1,097 |  |  | $ | (134 | ) |  | $ | 963 |

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- Definition Tabular disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=116846552&loc=d3e765-108305 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.10-01.(b)(6)) -URI http://asc.fasb.org/extlink&oid=27015980&loc=d3e46468-122699 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=116846552&loc=d3e725-108305 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22583-107794 + Details
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