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Debt - Summary of Convertible Debt (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Payment for Debt Extinguishment or Debt Prepayment Cost	$ 1,158	$ 1	$ 195
(Gain) loss on extinguishment of debt:
Gain (loss) on extinguishment of debt	$ 0	17	(1)
Convertible Debt
Debt Instrument [Line Items]
Aggregate principal amount settled		440
Payment for Debt Extinguishment or Debt Prepayment Cost		$ 1
Shares of Class C capital stock issued		6,265,000,000
Total fair value of consideration transferred		$ 776
(Gain) loss on extinguishment of debt:
Consideration allocated to liability component		403
Carrying value of the liability component, net of unamortized debt discount and debt issuance costs		386
Gain (loss) on extinguishment of debt		17
Consideration allocated to the equity component		373
1.50% convertible senior notes due 2023 | Convertible Debt
Debt Instrument [Line Items]
Aggregate principal amount settled		374
Payment for Debt Extinguishment or Debt Prepayment Cost		$ 1
Shares of Class C capital stock issued		4,752,000,000
Total fair value of consideration transferred		$ 572
(Gain) loss on extinguishment of debt:
Consideration allocated to liability component		349
Carrying value of the liability component, net of unamortized debt discount and debt issuance costs		334
Gain (loss) on extinguishment of debt		15
Consideration allocated to the equity component		223
0.75% convertible senior notes due 2024 | Convertible Debt
Debt Instrument [Line Items]
Aggregate principal amount settled		65
Payment for Debt Extinguishment or Debt Prepayment Cost		$ 0
Shares of Class C capital stock issued		1,485,000,000
Total fair value of consideration transferred		$ 200
(Gain) loss on extinguishment of debt:
Consideration allocated to liability component		53
Carrying value of the liability component, net of unamortized debt discount and debt issuance costs		51
Gain (loss) on extinguishment of debt		2
Consideration allocated to the equity component		147
1.375% convertible senior notes due 2026 | Convertible Debt
Debt Instrument [Line Items]
Aggregate principal amount settled		1
Payment for Debt Extinguishment or Debt Prepayment Cost		$ 0
Shares of Class C capital stock issued		28,000,000
Total fair value of consideration transferred		$ 4
(Gain) loss on extinguishment of debt:
Consideration allocated to liability component		1
Carrying value of the liability component, net of unamortized debt discount and debt issuance costs		1
Gain (loss) on extinguishment of debt		0
Consideration allocated to the equity component		$ 3
Convertible Senior Notes due 2021, 2.0% | Convertible Debt
Debt Instrument [Line Items]
Aggregate principal amount settled			460
Payment for Debt Extinguishment or Debt Prepayment Cost			$ 195
Shares of Class C capital stock issued			5,820,000,000
Total fair value of consideration transferred			$ 783
(Gain) loss on extinguishment of debt:
Consideration allocated to liability component			430
Carrying value of the liability component, net of unamortized debt discount and debt issuance costs			431
Gain (loss) on extinguishment of debt			(1)
Consideration allocated to the equity component			$ 353

X

- Definition

The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

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