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Commitments and Contingencies (Details) - USD ($) | Feb. 19, 2020 | Dec. 31, 2019 | Dec. 31, 2018
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Commitments and Contingencies Disclosure [Abstract] |  |  |
Standby letters of credit and guarantees outstanding |  | $ 902,000,000 | $ 294,000,000
Total Minimum Commitments [Abstract] |  |  |
2020 |  | 1,312,000,000 |
2021 |  | 1,103,000,000 |
2022 |  | 1,027,000,000 |
2023 |  | 764,000,000 |
2024 |  | 519,000,000 |
2025 and beyond |  | 2,531,000,000 |
Total Minimum Commitments |  | $ 7,256,000,000 |
Subsidiary guarantees demand for payment | $ 0 |  |

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- Definition Amount of the fixed and determinable portion of the unrecorded unconditional purchase obligation maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=77896938&loc=d3e25336-109308 + Details
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- Definition Amount of the fixed and determinable portion of the unrecorded unconditional purchase obligation maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=77896938&loc=d3e25336-109308 + Details
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- Definition Amount of the fixed and determinable portion of the unrecorded unconditional purchase obligation maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=77896938&loc=d3e25336-109308 + Details
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