Information about Geographic Areas and Products - Geographic Disclosures (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Revenues by geography
Total revenues	$ 1,409	$ 1,071	$ 2,769	$ 2,117
Property and equipment by geography
Property and equipment, net	$ 732		$ 732		$ 660
Percentage of U.S. revenues in North America	94.00%	94.00%	94.00%	94.00%
Percentage of U.S. net property and equipment in North America	81.00%		81.00%		78.00%
North America
Revenues by geography
Total revenues	$ 888	$ 705	$ 1,771	$ 1,407
Property and equipment by geography
Property and equipment, net	454		454		$ 395
EMEA
Revenues by geography
Total revenues	378	265	721	516
Property and equipment by geography
Property and equipment, net	184		184		172
Asia Pacific and other
Revenues by geography
Total revenues	143	$ 101	277	$ 194
Property and equipment by geography
Property and equipment, net	$ 94		$ 94		$ 93