Earnings per Share - Basic and Diluted Net Loss per Share Attributable to Common Stockholders (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Numerator:
Net income	$ 3,657	$ 1,221
Denominator:
Basic weighted-average common shares outstanding (in shares)	402	400
Effect of dilutive securities (in shares)	24	30
Diluted weighted-average common shares outstanding (in shares)	426	430
Basic EPS (usd per share)	$ 9.09	$ 3.05
Diluted EPS (usd per share)	$ 8.58	$ 2.84

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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