Debt - Long-Term Debt Obligations (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2022	Apr. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Face value of long-term debt	$ 63,435		$ 50,553
Less: current portion of long-term debt	(4,998)		(1,491)
Long-term debt	58,053		48,744
Senior Notes
Debt Instrument [Line Items]
Issuance amount		$ 12,800
Face value of long-term debt	62,500
Unamortized discount and issuance costs, net	$ (384)		(318)
Weighted average remaining lives term	14 years 3 months 18 days
Senior Notes | 2012 Notes issuance of $3.0 billion
Debt Instrument [Line Items]
Issuance amount	$ 3,000
Stated Interest Rates	2.50%
Effective Interest Rates	2.66%
Face value of long-term debt	$ 1,250		1,250
Weighted average remaining lives term	4 months 24 days
Senior Notes | 2014 Notes issuance of $6.0 billion
Debt Instrument [Line Items]
Issuance amount	$ 6,000
Face value of long-term debt	$ 4,000		4,000
Weighted average remaining lives term	13 years 1 month 6 days
Senior Notes | 2014 Notes issuance of $6.0 billion | Minimum
Debt Instrument [Line Items]
Stated Interest Rates	3.80%
Effective Interest Rates	3.90%
Senior Notes | 2014 Notes issuance of $6.0 billion | Maximum
Debt Instrument [Line Items]
Stated Interest Rates	4.95%
Effective Interest Rates	5.11%
Senior Notes | 2017 Notes issuance of $17.0 billion
Debt Instrument [Line Items]
Issuance amount	$ 17,000
Face value of long-term debt	$ 16,000		16,000
Weighted average remaining lives term	14 years 8 months 12 days
Senior Notes | 2017 Notes issuance of $17.0 billion | Minimum
Debt Instrument [Line Items]
Stated Interest Rates	2.40%
Effective Interest Rates	2.56%
Senior Notes | 2017 Notes issuance of $17.0 billion | Maximum
Debt Instrument [Line Items]
Stated Interest Rates	5.20%
Effective Interest Rates	4.33%
Senior Notes | 2020 Notes issuance of $10.0 billion
Debt Instrument [Line Items]
Issuance amount	$ 10,000
Face value of long-term debt	$ 10,000		10,000
Weighted average remaining lives term	17 years 2 months 12 days
Senior Notes | 2020 Notes issuance of $10.0 billion | Minimum
Debt Instrument [Line Items]
Stated Interest Rates	0.40%
Effective Interest Rates	0.56%
Senior Notes | 2020 Notes issuance of $10.0 billion | Maximum
Debt Instrument [Line Items]
Stated Interest Rates	2.70%
Effective Interest Rates	2.77%
Senior Notes | 2021 Notes issuance of $18.5 billion
Debt Instrument [Line Items]
Issuance amount	$ 18,500
Face value of long-term debt	$ 18,500		18,500
Weighted average remaining lives term	13 years 9 months 18 days
Senior Notes | 2021 Notes issuance of $18.5 billion | Minimum
Debt Instrument [Line Items]
Stated Interest Rates	0.25%
Effective Interest Rates	0.35%
Senior Notes | 2021 Notes issuance of $18.5 billion | Maximum
Debt Instrument [Line Items]
Stated Interest Rates	3.25%
Effective Interest Rates	3.31%
Senior Notes | 2022 Notes Issuance of $12.8 billion
Debt Instrument [Line Items]
Issuance amount	$ 12,800
Face value of long-term debt	$ 12,750		0
Weighted average remaining lives term	13 years 9 months 18 days
Senior Notes | 2022 Notes Issuance of $12.8 billion | Minimum
Debt Instrument [Line Items]
Stated Interest Rates	2.73%
Effective Interest Rates	2.83%
Senior Notes | 2022 Notes Issuance of $12.8 billion | Maximum
Debt Instrument [Line Items]
Stated Interest Rates	4.10%
Effective Interest Rates	4.15%
Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Face value of long-term debt	$ 935		$ 803