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Lease Accounting Leasee Accounting(Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Jan. 01, 2019
Rental Income, Nonoperating | $ 149 |  |  |
Operating Lease, Weighted Average Remaining Lease Term | 24 years |  |  |
Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year | $ 104 |  |  |
Operating Lease, Cost | 117 |  |  |
Operating Lease, Right-of-Use Asset | 1,000 | $ 0 |  | $ 889
Operating Lease, Liability, Current | 60 | 0 |  | 71
Accrued and other current liabilities | 3,342 | 2,918 |  | 2,917
Operating Lease, Liability, Noncurrent | 901 | 0 |  | 823
Property, Plant and Equipment, Net | 74,193 | 66,963 |  | 66,962
Current maturities of long-term debt | 26 | 2,655 |  | 2,656
Long-term debt, less current maturities | 51,028 | 43,373 |  | 43,379
Other non-current liabilities | 1,162 | 1,184 |  | $ 1,172
Finance Lease, Interest Expense | 1 |  |  |
Lease, Cost | 136 |  |  |
Lease, Cost, Gross | 183 |  |  |
Net Cash Provided by (Used in) Financing Activities | (1,197) | $ (3,082) | $ 953 |
Finance Lease, Liability, Payments, Remainder of Fiscal Year | 8 |  |  |
Lease Liabilities, Remainder of Year | 112 |  |  |
Lessee, Operating Lease, Liability, Payments, Due Year Two | 96 |  |  |
Finance Lease, Liability, Payments, Due Year Two | 8 |  |  |
Lease Liabilities, Due Year Two | 104 |  |  |
Lessee, Operating Lease, Liability, Payments, Due Year Three | 83 |  |  |
Finance Lease, Liability, Payments, Due Year Three | 8 |  |  |
Lease Liabilities, Due Year Three | 91 |  |  |
Lessee, Operating Lease, Liability, Payments, Due Year Four | 77 |  |  |
Finance Lease, Liability, Payments, Due Year Four | 7 |  |  |
Lease Liabilities, Due Year Four | 84 |  |  |
Lessee, Operating Lease, Liability, Payments, Due Year Five | 74 |  |  |
Finance Lease, Liability, Payments, Due Year Five | 4 |  |  |
Lease Liabilities, Due Year Five | 78 |  |  |
Lessee, Operating Lease, Liability, Payments, Due after Year Five | 1,342 |  |  |
Finance Lease, Liability, Payments, Due after Year Five | 5 |  |  |
Lease Liabilities, Due After Five Years | 1,347 |  |  |
Lessee, Operating Lease, Liability, Payments, Due | 1,776 |  |  |
Finance Lease, Liability, Payment, Due | 40 |  |  |
Lease Liabilities, Due | 1,816 |  |  |
Lessee, Operating Lease, Liability, Undiscounted Excess Amount | 815 |  |  |
Finance Lease, Liability, Undiscounted Excess Amount | 5 |  |  |
Lease Liability, Undiscounted Excess Amount | 820 |  |  |
Operating Lease, Liability | 961 |  |  |
Finance Lease, Liability | 35 |  |  |
Lease, Liabilities | $ 996 |  |  |
Finance Lease, Weighted Average Remaining Lease Term | 5 years |  |  |
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability | $ 28 |  |  |
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability | 40 |  |  |
Operating Leases [Member] |  |  |  |
Net Cash Provided by (Used in) Operating Activities | (159) |  |  |
Operating Lease, Right-of-Use Asset | 935 |  |  |
Operating Lease, Liability, Current | 60 |  |  |
Accrued and other current liabilities | 1 |  |  |
Operating Lease, Liability, Noncurrent | 901 |  |  |
Finance Leases [Member] |  |  |  |
Accrued and other current liabilities | 1 |  |  |
Property, Plant and Equipment, Net | 1 |  |  |
Finance Lease, Right-of-Use Asset | 29 |  |  |
Current maturities of long-term debt | 6 |  |  |
Long-term debt, less current maturities | 26 |  |  |
Other non-current liabilities | 2 |  |  |
Lease, Cost | 7 |  |  |
Cost of Goods and Service Benchmark [Member] |  |  |  |
Operating Lease, Cost | 28 |  |  |
Operating Expense [Member] |  |  |  |
Operating Lease, Cost | 73 |  |  |
Short-term Lease, Cost | 42 |  |  |
Variable Lease, Cost | 17 |  |  |
Selling, General and Administrative Expenses [Member] |  |  |  |
Operating Lease, Cost | 16 |  |  |
Depreciation And Amortization [Member] |  |  |  |
Finance Lease, Right-of-Use Asset, Amortization | 6 |  |  |
Other Revenue [Member] |  |  |  |
Sublease Income | $ 47 |  |  |
ETO [Member] |  |  |  |
Operating Lease, Weighted Average Discount Rate, Percent | 5.00% |  |  |
Finance Lease, Weighted Average Discount Rate, Percent | 5.00% |  |  |
Real Estate [Member] |  |  |  |
Lessee, Operating Lease, Term of Contract | 40 years |  |  |
Minimum [Member] |  |  |  |
Lessee, Operating Lease, Renewal Term | 1 year |  |  |
Minimum [Member] | Equipment [Member] |  |  |  |
Lessee, Operating Lease, Term of Contract | 5 years |  |  |
Maximum [Member] |  |  |  |
Lessee, Operating Lease, Renewal Term | 20 years |  |  |
Maximum [Member] | Equipment [Member] |  |  |  |
Lessee, Operating Lease, Term of Contract | 15 years |  |  |

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