Fair Value of Financial Instruments (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Cash Equivalents, at Carrying Value	$ 1,062	$ 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	1,062	806
Available-for-sale Debt Securities, Amortized Cost Basis, Current	136	237
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, Current, before Tax	12	8
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, Current, before Tax	0	0
Debt Securities, Available-for-sale, Current	148	245
Debt Securities, Available-for-sale, Amortized Cost	2,012	1,997
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	6	110
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	(343)	(48)
Debt Securities, Available-for-sale	1,675	2,059
Equity Securities, Amortized Cost Basis	4	7
Equity Securities, Accumulated Gross Unrealized Gain, Before Tax	6	13
Equity Securities, Accumulated Gross Unrealized Loss, Before Tax	0	0
Equity Securities, Fair Value	10	20
Other Investments and Securities, at Cost	2,016	2,004
Other Investments and Securities, Accumulated Gross Unrealized Gain, Before Tax	12	123
Other Investments and Securities, Accumulated Gross Unrealized Loss, Before Tax	(343)	(48)
Investments, Fair Value Disclosure	1,685	2,079
Cash Equivalents, Marketable Securities and Other Investments, Amortized Cost Basis	3,214	3,047
Cash Equivalents, Marketable Securities and Other Investments, Accumulated Gross Unrealized Gain, Before Tax	24	131
Cash Equivalents, Marketable Securities and Other Investments, Accumulated Gross Unrealized Loss, Before Tax	(343)	(48)
Cash Equivalents, Marketable Securities and Other Investments, Fair Value	2,895	3,130
Long-term Debt	(13,285)	(14,511)
Long Term Debt, Accumulated Gross Unrealized Gain, Before Tax	1,996	27
Long Term Debt, Accumulated Gross Unrealized Loss, Before Tax	(333)	(2,641)
Long-term Debt, Fair Value	(11,622)	(17,125)
Derivative Assets (Liabilities), Accumulated Gross Unrealized Gain, Before Tax	661	189
Derivative Assets (Liabilities), Accumulated Gross Unrealized Loss, Before Tax	(258)	(250)
Derivative Assets (Liabilities), at Fair Value, Net	403	(61)
Long Term Debt, Accumulated Fair Value Adjustment	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	198	1
Derivative Assets (Liabilities), Accumulated Gross Unrealized Loss, Before Tax	0	(140)
Derivative Assets (Liabilities), at Fair Value, Net	198	(139)
Foreign Exchange Contract [Member]
Debt Securities, Available-for-sale [Line Items]
Derivative Assets (Liabilities), Accumulated Gross Unrealized Gain, Before Tax	189	46
Derivative Assets (Liabilities), Accumulated Gross Unrealized Loss, Before Tax	(158)	(18)
Derivative Assets (Liabilities), at Fair Value, Net	31	28
Commodity Contract [Member]
Debt Securities, Available-for-sale [Line Items]
Derivative Assets (Liabilities), Accumulated Gross Unrealized Gain, Before Tax	274	142
Derivative Assets (Liabilities), Accumulated Gross Unrealized Loss, Before Tax	(100)	(92)
Derivative Assets (Liabilities), at Fair Value, Net	174	50
US Treasury and Government [Member]
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	744	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	(155)	(28)
Debt Securities, Available-for-sale	590	735
Corporate Debt Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	1,268	1,251
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	5	93
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	(188)	(20)
Debt Securities, Available-for-sale	1,085	1,324
Held-to-maturity Securities
Debt Securities, Available-for-sale [Line Items]
Cash Equivalents, at Carrying Value	327	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	327	317
Money Market Funds
Debt Securities, Available-for-sale [Line Items]
Cash Equivalents, at Carrying Value	735	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	$ 735	$ 489