Debt - Long-term Debt (Details)	1 Months Ended	6 Months Ended
	Feb. 29, 2024 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Mar. 31, 2024 USD ($)
Debt Instrument [Line Items]
Aggregate principal amount of outstanding debt securities redeemed				$ 1,800,000,000
Repayment of long-term debt		$ 3,000,000,000	$ 80,000,000
Senior Notes
Debt Instrument [Line Items]
Principal	$ 4,500,000,000
$1,000 million, 5.000% Notes due May 2029
Debt Instrument [Line Items]
Interest rate		5.00%
Gross value		$ 1,000,000,000
$1,000 million, 5.000% Notes due May 2029 | Senior Notes
Debt Instrument [Line Items]
Principal	$ 1,000,000,000
Interest rate	5.00%
Net proceeds	$ 995,000,000
Redemption price discount, spread on variable rate	0.0015
$750 million, 5.125% Notes due May 2031
Debt Instrument [Line Items]
Interest rate		5.125%
Gross value		$ 750,000,000
$750 million, 5.125% Notes due May 2031 | Senior Notes
Debt Instrument [Line Items]
Principal	$ 750,000,000
Interest rate	5.125%
Net proceeds	$ 746,000,000
Redemption price discount, spread on variable rate	0.0015
$1,250 million, 5.250% Notes due February 2034 (2)
Debt Instrument [Line Items]
Interest rate		5.25%
Gross value		$ 1,250,000,000
$1,250 million, 5.250% Notes due February 2034 (2) | Senior Notes
Debt Instrument [Line Items]
Principal	$ 1,250,000,000
Interest rate	5.25%
Net proceeds	$ 1,244,000,000
Redemption price discount, spread on variable rate	0.0020
$1,500 million, 5.600% Notes due February 2054
Debt Instrument [Line Items]
Interest rate		5.60%
Gross value		$ 1,500,000,000
$1,500 million, 5.600% Notes due February 2054 | Senior Notes
Debt Instrument [Line Items]
Principal	$ 1,500,000,000
Interest rate	5.60%
Net proceeds	$ 1,485,000,000
Redemption price discount, spread on variable rate	0.0020