v3.22.0.1

Investments | 12 Months Ended
--- | ---
Dec. 31, 2021
Debt Securities, Available-for-sale [Abstract] |
Investments | Investments Marketable Debt Securities The following is a summary of our available-for-sale debt securities recorded within short-term and long-term investments on the consolidated balance sheets (in millions):
| December 31, 2021
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Estimated Fair Value
Available-for-sale securities: |  |  |  |  |  |  |
Commercial paper | $ | 528 |  |  | $ | — |  |  | $ | — |  |  | $ | 528 |
Corporate notes and bonds | 2,418 |  |  | 1 |  |  | (7) |  |  | 2,412 |
Certificates of deposit | 28 |  |  | — |  |  | — |  |  | 28 |
U.S. government and agency securities | 140 |  |  | — |  |  | — |  |  | 140 |
Mortgage and asset backed securities | 100 |  |  | — |  |  | (2) |  |  | 98 |
Total available-for-sale securities | $ | 3,214 |  |  | $ | 1 |  |  | $ | (9) |  |  | $ | 3,206 |
| December 31, 2020
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Estimated Fair Value
Available-for-sale securities: |  |  |  |  |  |  |
Commercial paper | $ | 406 |  |  | $ | — |  |  | $ | — |  |  | $ | 406 |
Corporate notes and bonds | 2,298 |  |  | 10 |  |  | — |  |  | 2,308 |
Certificates of deposit | 23 |  |  | — |  |  | — |  |  | 23 |
U.S. government and agency securities | 145 |  |  | 1 |  |  | — |  |  | 146 |
Total available-for-sale securities | $ | 2,872 |  |  | $ | 11 |  |  | $ | — |  |  | $ | 2,883 |
As of December 31, 2021, the contractual maturities of our available-for-sale debt securities, excluding those securities classified within cash and cash equivalents on the consolidated balance sheet and mortgage and asset backed securities that do not have a single maturity, did not exceed 36 months. The fair values of available-for-sale securities, by remaining contractual maturity, are as follows (in millions):
| December 31, 2021
Due within 1 year | $ | 1,576 |
Due in 1 year through 5 years | 1,532 |
Instruments not due in single maturity | 98 |
Total | $ | 3,206 |
As of December 31, 2021 and December 31, 2020, the gross unrealized losses that have been in a continuous unrealized loss position related to $2,416 million and $637 million available-for-sale debt securities, respectively, were not material. The decline in fair value below amortized cost basis was not considered other than temporary as it is more likely than not we will hold the securities until maturity or a recovery of the cost basis, and credit-related impairment losses were not deemed material as of December 31, 2021. Strategic Investments As of December 31, 2021 and 2020, the total amount of equity investments in privately-held companies included in other assets on our consolidated balance sheets was $99 million and $28 million, respectively. We classify these assets as Level 3 within the fair value hierarchy as only an impairment or observable adjustment is recognized based on observable transaction price at the transaction date of identical or similar investment of the same issuer and other unobservable inputs such as volatility.

X
- References No definition available. + Details
Name: | us-gaap_AvailableForSaleSecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for investments in certain debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2209399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2324412 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI http://asc.fasb.org/topic&trid=2196928 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2176304 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1403 -Paragraph (b) + Details
Name: | us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration