v3.22.0.1
Investments and Fair Value Measurement - Narrative (Details)
$ in Millions
 1 Months Ended 3 Months Ended 11 Months Ended 12 Months Ended
Dec. 31, 2021
USD ($)
Mar. 31, 2021
USD ($)
Mar. 31, 2020
USD ($)
Nov. 30, 2021
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]              
Pre-tax unrealized gains (losses) on investment         $ 1,142 $ (125) $ 2
Change in unrealized gain (loss) on investments in available-for-sale securities         (46) 2 4
Allowance for Credit Loss           0 0
Total assets $ 38,774       38,774 33,252  
Payments to notes receivables         297 185 0
Downward adjustments (including impairment)     $ 1,700   0 1,690 0
Proceeds from sale of non-marketable equity securities         500 0 0
Upward adjustments         71 0 $ 0
Option Pricing Model              
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]              
Valuation technique, weight     20.00%        
Common Stock Equivalent              
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]              
Valuation technique, weight     80.00%        
Aurora              
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]              
Unrealized gain (loss) on investment         1,600    
Didi              
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]              
Pre-tax unrealized gains (losses) on investment         (3,000)    
Unrealized gain (loss) on investment         (3,000)    
Proceeds from sale of non-marketable equity securities   $ 500          
Upward adjustments   $ 71          
Grab              
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]              
Pre-tax unrealized gains (losses) on investment       $ 2,800 1,600    
Unrealized gain (loss) on investment (1,200)            
Lime Investments              
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]              
Total assets 162       $ 162 $ 134  
Payments to notes receivables $ 50            
Lime Investments | Option Pricing Model              
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]              
Time to liquidity         1 year 3 months 2 years  
Lime Investments | Volatility | Option Pricing Model              
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]              
Measurement inputs 0.70       0.70 0.67  
Lime Investments | Minimum | Discount Rate | Option Pricing Model              
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]              
Measurement inputs 0.22       0.22 0.22  
Lime Investments | Maximum | Discount Rate | Option Pricing Model              
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]              
Measurement inputs 0.28       0.28 0.28  
Zomato              
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]              
Pre-tax unrealized gains (losses) on investment         $ 991    
Unrealized gain (loss) on investment         991    
Investment carrying value $ 1,100       $ 1,100    
Grab              
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]              
Market adjustment     10000000.00%        
Reduction In carrying value     $ 230        
Change in unrealized gain (loss) on investments in available-for-sale securities     (57)        
Allowance for Credit Loss     $ 173