Fair Value Measurement of Assets and Liabilities (Tables)

6 Months Ended

Jun. 30, 2020

Fair Value Disclosures [Abstract]

Schedule of fair value of assets and liabilities measured on a recurring basis

The following tables present our financial assets and liabilities measured at fair value on a recurring basis (in millions):

	June 30, 2020		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant  Unobservable Inputs (Level 3)
Assets:
Cash and cash equivalents	$	1,006	$	906	$	100	$	—
Short-term investments:
Restricted cash	19		19		—		—
Corporate debt securities	3,869		—		3,869		—
Government and agency securities	409		—		409		—
Total short-term investments	4,297		19		4,278		—
Derivatives	681		—		95		586
Long-term investments:
Corporate debt securities	534		—		534		—
Total long-term investments	534		—		534		—
Total financial assets	$	6,518	$	925	$	5,007	$	586
Liabilities:
Derivatives	$	31	$	—	$	31	$	—

	December 31, 2019		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant  Unobservable Inputs (Level 3)
Assets:
Cash and cash equivalents	$	923	$	923	$	—	$	—
Short-term investments:
Restricted cash	21		21		—		—
Corporate debt securities	1,654		—		1,654		—
Government and agency securities	175		—		175		—
Total short-term investments	1,850		21		1,829		—
Derivatives	347		—		66		281
Long-term investments:
Corporate debt securities	961		—		961		—
Total long-term investments	961		—		961		—
Total financial assets	$	4,081	$	944	$	2,856	$	281
Liabilities:
Derivatives	$	23	$	—	$	23	$	—

Schedule of assets measured using significant unobservable inputs

The following tables present a reconciliation of the opening to closing balance of assets measured using significant unobservable inputs (Level 3) (in millions):

	June 30, 2020
Opening balance as of January 1, 2020	$	281
Change in fair value	305
Closing balance as of June 30, 2020	$	586

	December 31, 2019
Opening balance as of January 1, 2019	$	148
Change in fair value	133
Closing balance as of December 31, 2019	$	281

The following table presents quantitative information about Level 3 significant unobservable inputs used in the fair value measurement of the warrant as of June 30, 2020 (in millions):

	Fair value		Valuation technique	Unobservable Input	Range (weighted average)(1)
Warrant	$	586	Black-Scholes and Monte Carlo	Probability of vesting	0.0% - 90.0% (69%)
				Equity volatility	21.0% - 57.5% (40%)

⁽¹⁾ Probability of vesting were weighted by the unadjusted value of the tranches. For volatility, the average represents the arithmetic average of the inputs and is not weighted by the relative fair value or notional amount.