Fair Value Measurements - Schedule of Carrying Values and Estimated Fair Values of Debt Instruments (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	$ 18,123	$ 18,122
Fair value	$ 16,313
2025 Senior Notes (3.65% senior unsecured notes due May 23, 2025) | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate, stated percentage	3.65%
Fair value	$ 1,230
Senior notes	$ 1,244	1,243
2025 Senior Notes (3.75% senior unsecured notes due December 1, 2025) | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate, stated percentage	3.75%
Fair value	$ 1,217
Senior notes	$ 1,247	1,247
2027 Senior Notes (4.00% senior unsecured notes due September 15, 2027) | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate, stated percentage	4.00%
Fair value	$ 1,486
Senior notes	$ 1,487	1,487
2027 Senior Notes (3.10% senior unsecured notes due September 15, 2027) | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate, stated percentage	3.10%
Fair value	$ 473
Senior notes	$ 498	498
2028 Senior Notes (3.75% senior unsecured notes due September 21, 2028) | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate, stated percentage	3.75%
Fair value	$ 578
Senior notes	$ 594	594
2029 Senior Notes (4.35% senior unsecured notes due June 15, 2029) | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate, stated percentage	4.35%
Fair value	$ 1,236
Senior notes	$ 1,240	1,240
2030 Senior Notes (2.10% senior unsecured notes due June 15, 2030) | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate, stated percentage	2.10%
Fair value	$ 1,061
Senior notes	$ 1,236	1,235
2032 Senior Notes (1.85% senior unsecured notes due September 15, 2032) | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate, stated percentage	1.85%
Fair value	$ 1,187
Senior notes	$ 1,485	1,485
2033 Senior Notes (4.60% senior unsecured notes due March 15, 2033) | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate, stated percentage	4.60%
Fair value	$ 1,489
Senior notes	$ 1,488	1,488
2040 Senior Notes (2.65% senior unsecured notes due September 15, 2040) | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate, stated percentage	2.65%
Fair value	$ 911
Senior notes	$ 1,232	1,231
2048 Senior Notes (4.25% senior unsecured notes due September 21, 2048) | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate, stated percentage	4.25%
Fair value	$ 1,098
Senior notes	$ 1,231	1,231
2050 Senior Notes (3.00% senior unsecured notes due June 15, 2050) | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate, stated percentage	3.00%
Fair value	$ 884
Senior notes	$ 1,221	1,221
2052 Senior Notes (4.95% senior unsecured notes due June 15, 2052) | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate, stated percentage	4.95%
Fair value	$ 1,467
Senior notes	$ 1,465	1,464
2060 Senior Notes (3.00% senior unsecured notes due September 15, 2060) | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate, stated percentage	3.00%
Fair value	$ 988
Senior notes	$ 1,471	1,471
2062 Senior Notes (5.20% senior unsecured notes due June 15, 2062) | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate, stated percentage	5.20%
Fair value	$ 1,008
Senior notes	$ 984	$ 983