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v3.19.1

Leases (Details) - USD ($) $ in Millions | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2019 | Jan. 01, 2019 | Dec. 31, 2018
Lessee, Lease, Description [Line Items] |  |  |
Finance Lease, Right-of-Use Asset | $ 81 |  |
Finance Lease, Liability | 86 |  |
Operating Lease, Expense | 159 |  |
Operating Lease, Payments | 145 |  |
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability | 27 |  |
Operating Lease, Right-of-Use Asset | 2,533 | $ 2,600 | $ 0
Operating Lease, Liability, Noncurrent | 2,020 |  | 0
Operating Lease, Liability | $ 2,602 | $ 2,700 |
Operating Lease, Weighted Average Remaining Lease Term | 6 years 11 months |  |
Operating Lease, Weighted Average Discount Rate, Percent | 3.60% |  |
Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year | $ 533 |  |
Lessee, Operating Lease, Liability, Payments, Due Year Two | 540 |  |
Lessee, Operating Lease, Liability, Payments, Due Year Three | 446 |  |
Lessee, Operating Lease, Liability, Payments, Due Year Four | 327 |  |
Lessee, Operating Lease, Liability, Payments, Due Year Five | 242 |  |
Lessee, Operating Lease, Liability, Payments, Due after Year Five | 776 |  |
Lessee, Operating Lease, Liability, Payments, Due | 2,864 |  |
Lessee, Operating Lease, Liability, Undiscounted Excess Amount | 262 |  |
Operating Leases, Future Minimum Payments Due |  |  | 2,916
Operating Leases, Future Minimum Payments Due, Next Twelve Months |  |  | 683
Operating Leases, Future Minimum Payments, Due in Two Years |  |  | 544
Operating Leases, Future Minimum Payments, Due in Three Years |  |  | 407
Operating Leases, Future Minimum Payments, Due in Four Years |  |  | 301
Operating Leases, Future Minimum Payments, Due in Five Years |  |  | 235
Operating Leases, Future Minimum Payments, Due Thereafter |  |  | $ 746
Accrued Liabilities [Member] |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Operating Lease, Liability, Current | 582 |  |
Operating lease extensions [Member] |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Lessee, Operating Lease, Liability, Payments, Due | $ 228 |  |

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- Definition Present value of lessee's discounted obligation for lease payments from finance lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
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- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980 + Details
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- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease, due after fifth fiscal year following latest fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980 + Details
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- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease, due in fourth fiscal year following latest fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980 + Details
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