Investments and Restricted Cash and Cash Equivalents - EGTS (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Reflected as:
Investments and restricted cash and cash equivalents	$ 2,141	$ 172
EGTS
Investments, Including Equity Method And Restricted Cash And Investments [Line Items]
Restricted cash and cash equivalents	29	15
Total investments and restricted cash and cash equivalents	43	28
Reflected as:
Investments and restricted cash and cash equivalents	29	15
Noncurrent assets	14	13
Customer deposits \| EGTS
Investments, Including Equity Method And Restricted Cash And Investments [Line Items]
Restricted cash and cash equivalents	29	15
Investment funds \| EGTS
Investments, Including Equity Method And Restricted Cash And Investments [Line Items]
Investments	$ 14	$ 13

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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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