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Fair Value of Financial Instruments (Details) - USD ($) $ in Millions | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |
Cash Equivalents, at Carrying Value | $ 979 | $ 806
Cash Equivalents, Accumulated Gross Unrealized Gain, Before Tax | 0 | 0
Cash Equivalents, Accumulated Gross Unrealized Loss, Before Tax | 0 | 0
Cash Equivalents, Fair Value | 979 | 806
Available-for-sale Debt Securities, Amortized Cost Basis, Current | 164 | 237
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, Current, before Tax | 5 | 8
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, Current, before Tax | 0 | 0
Debt Securities, Available-for-sale, Current | 169 | 245
Debt Securities, Available-for-sale, Amortized Cost | 2,002 | 1,997
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 19 | 110
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | (280) | (48)
Debt Securities, Available-for-sale | 1,741 | 2,059
Equity Securities, Amortized Cost Basis | 4 | 7
Equity Securities, Accumulated Gross Unrealized Gain, Before Tax | 8 | 13
Equity Securities, Accumulated Gross Unrealized Loss, Before Tax | 0 | 0
Equity Securities, Fair Value | 12 | 20
Other Investments and Securities, at Cost | 2,006 | 2,004
Other Investments and Securities, Accumulated Gross Unrealized Gain, Before Tax | 27 | 123
Other Investments and Securities, Accumulated Gross Unrealized Loss, Before Tax | (280) | (48)
Investments, Fair Value Disclosure | 1,753 | 2,079
Cash Equivalents, Marketable Securities and Other Investments, Amortized Cost Basis | 3,149 | 3,047
Cash Equivalents, Marketable Securities and Other Investments, Accumulated Gross Unrealized Gain, Before Tax | 32 | 131
Cash Equivalents, Marketable Securities and Other Investments, Accumulated Gross Unrealized Loss, Before Tax | (280) | (48)
Cash Equivalents, Marketable Securities and Other Investments, Fair Value | 2,901 | 3,130
Long-term Debt | (13,426) | (14,511)
Long Term Debt, Accumulated Gross Unrealized Gain, Before Tax | 1,267 | 27
Long Term Debt, Accumulated Gross Unrealized Loss, Before Tax | (567) | (2,641)
Long-term Debt, Fair Value | (12,726) | (17,125)
Derivative Assets (Liabilities), Accumulated Gross Unrealized Gain, Before Tax | 621 | 189
Derivative Assets (Liabilities), Accumulated Gross Unrealized Loss, Before Tax | (347) | (250)
Derivative Assets (Liabilities), at Fair Value, Net | 274 | (61)
Long Term Debt, Accumulated Fair Value Adjustment | 47 | 47
Derivative, Amount of Hedged Item | 2,279 |
Interest Rate Contract [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Derivative Assets (Liabilities), Accumulated Gross Unrealized Gain, Before Tax | 167 | 1
Derivative Assets (Liabilities), Accumulated Gross Unrealized Loss, Before Tax | 0 | (140)
Derivative Assets (Liabilities), at Fair Value, Net | 167 | (139)
Foreign Exchange Contract [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Derivative Assets (Liabilities), Accumulated Gross Unrealized Gain, Before Tax | 88 | 46
Derivative Assets (Liabilities), Accumulated Gross Unrealized Loss, Before Tax | (113) | (18)
Derivative Assets (Liabilities), at Fair Value, Net | (25) | 28
Commodity Contract [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Derivative Assets (Liabilities), Accumulated Gross Unrealized Gain, Before Tax | 366 | 142
Derivative Assets (Liabilities), Accumulated Gross Unrealized Loss, Before Tax | (234) | (92)
Derivative Assets (Liabilities), at Fair Value, Net | 132 | 50
US Treasury and Government [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt Securities, Available-for-sale, Amortized Cost | 735 | 746
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 1 | 17
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | (121) | (28)
Debt Securities, Available-for-sale | 615 | 735
Corporate Debt Securities [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt Securities, Available-for-sale, Amortized Cost | 1,267 | 1,251
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 18 | 93
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | (159) | (20)
Debt Securities, Available-for-sale | 1,126 | 1,324
Held-to-maturity Securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Cash Equivalents, at Carrying Value | 277 | 317
Cash Equivalents, Accumulated Gross Unrealized Gain, Before Tax | 0 | 0
Cash Equivalents, Accumulated Gross Unrealized Loss, Before Tax | 0 | 0
Cash Equivalents, Fair Value | 277 | 317
Money Market Funds |  |
Debt Securities, Available-for-sale [Line Items] |  |
Cash Equivalents, at Carrying Value | 702 | 489
Cash Equivalents, Accumulated Gross Unrealized Gain, Before Tax | 0 | 0
Cash Equivalents, Accumulated Gross Unrealized Loss, Before Tax | 0 | 0
Cash Equivalents, Fair Value | $ 702 | $ 489

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