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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Debt - Summary of Convertible Debt (Details) - USD ($) shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Debt Instrument [Line Items]
Cash paid			$ 1,158	$ 1
Loss on extinguishment of debt:
Loss on extinguishment of debt	$ 0	$ 15	$ 0	17
Convertible senior notes:
Debt Instrument [Line Items]
Aggregate principal amount settled				440
Cash paid				$ 1
Shares of Class C capital stock issued (in shares)				6,265,000
Total fair value of consideration transferred				$ 776
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
Loss on extinguishment of debt				17
Consideration allocated to the equity component				373
2023 Notes \| Convertible senior notes:
Debt Instrument [Line Items]
Aggregate principal amount settled		368		374
Cash paid		$ 1		$ 1
Shares of Class C capital stock issued (in shares)		4,675,000		4,752,000
Total fair value of consideration transferred		$ 562		$ 572
Loss on extinguishment of debt:
Consideration allocated to liability component		343		349
Carrying value of the liability component, net of unamortized debt discount and debt issuance costs		328		334
Loss on extinguishment of debt		15		15
Consideration allocated to the equity component		$ 219		223
2024 Notes \| Convertible senior notes:
Debt Instrument [Line Items]
Aggregate principal amount settled				65
Cash paid				$ 0
Shares of Class C capital stock issued (in shares)				1,485,000
Total fair value of consideration transferred				$ 200
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
Loss on extinguishment of debt				2
Consideration allocated to the equity component				147
2026 Notes \| Convertible senior notes:
Debt Instrument [Line Items]
Aggregate principal amount settled				1
Cash paid				$ 0
Shares of Class C capital stock issued (in shares)				28,000
Total fair value of consideration transferred				$ 4
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
Loss on extinguishment of debt				0
Consideration allocated to the equity component				$ 3