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Financial Instruments (Derivative) (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021	Dec. 31, 2020
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	$ 9,492	$ 8,068
Restricted Cash and Cash Equivalents, Current	119	114
Restricted Cash and Cash Equivalents, Noncurrent	134	132
Total cash, cash equivalents, restricted cash and restricted cash equivalents presented in the consolidated statements of cash flows	9,745	8,314	$ 6,569	$ 3,903
Credit Derivative, Maximum Exposure, Undiscounted	53
Bank Time Deposits
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	$ 200	$ 200