Revenue (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Disaggregation of Revenue [Line Items]
Threshold percentage of total revenue			2.00%
Revenue recognized that was included in the contract liability balance at the beginning of the period	$ 187	$ 75	$ 698	$ 529
Performance obligation satisfied in previous period	$ 20	$ 13	$ 64	$ 74