v3.22.0.1
Revenues
 12 Months Ended
Dec. 31, 2021
Revenue from Contract with Customer [Abstract]  
Revenues Revenues
Revenue Recognition
The following table presents revenues disaggregated by type (in millions):
Year Ended December 31,
201920202021
Google Search & other$98,115 $104,062 $148,951 
YouTube ads15,149 19,772 28,845 
Google Network21,547 23,090 31,701 
Google advertising134,811 146,924 209,497 
Google other17,014 21,711 28,032 
Google Services total151,825 168,635 237,529 
Google Cloud8,918 13,059 19,206 
Other Bets659 657 753 
Hedging gains (losses)455 176 149 
Total revenues$161,857 $182,527 $257,637 
No individual customer or groups of affiliated customers represented more than 10% of our revenues in 2019, 2020, or 2021.
The following table presents revenues disaggregated by geography, based on the addresses of our customers (in millions):
Year Ended December 31,
 201920202021
United States$74,843 46 %$85,014 47 %$117,854 46 %
EMEA(1)
50,645 31 55,370 30 79,107 31 
APAC(1)
26,928 17 32,550 18 46,123 18 
Other Americas(1)
8,986 6 9,417 5 14,404 5 
Hedging gains (losses)455 0 176 0 149 0 
Total revenues$161,857 100 %$182,527 100 %$257,637 100 %
(1)    Regions represent Europe, the Middle East, and Africa (EMEA); Asia-Pacific (APAC); and Canada and Latin America ("Other Americas").
Revenue Backlog and Deferred Revenues
As of December 31, 2021 we had $51.0 billion of remaining performance obligations (“revenue backlog”), primarily related to Google Cloud, and expect to recognize approximately half of this amount as revenues over the next 24 months with the remaining thereafter. Our revenue backlog represents commitments in customer contracts for future services that have not yet been recognized as revenues. The amount and timing of revenue recognition for these commitments is largely driven by when our customers utilize services and our ability to deliver in accordance with relevant contract terms, which could affect our estimate of revenue backlog and when we expect to recognize such as revenues. Revenue backlog includes related deferred revenue currently recorded as well as amounts that will be invoiced in future periods, and excludes contracts with an original expected term of one year or less and cancellable contracts.
We record deferred revenues when cash payments are received or due in advance of our performance, including amounts which are refundable. Deferred revenues primarily relate to Google Cloud and Google other. Total deferred revenue as of December 31, 2020 was $3.0 billion, of which $2.3 billion was recognized as revenues for the year ending December 31, 2021.