v3.23.2
Fair Value Measurements - Schedule of Carrying Values and Estimated Fair Values of Debt Instruments (Details) - USD ($)
$ in Millions
Jun. 30, 2023
Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Carrying Amount $ 18,128 $ 18,122
Fair value $ 16,095  
3.65% Senior 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%  
Senior notes $ 1,245 1,243
Fair value $ 1,226  
3.75% Senior 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%  
Senior notes $ 1,248 1,247
Fair value $ 1,214  
4.00% Senior 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%  
Senior notes $ 1,488 1,487
Fair value $ 1,463  
3.10% Senior 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%  
Senior notes $ 498 498
Fair value $ 468  
3.75% Senior 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%  
Senior notes $ 595 594
Fair value $ 571  
4.35% Senior 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%  
Senior notes $ 1,240 1,240
Fair value $ 1,225  
2.10% Senior 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%  
Senior notes $ 1,237 1,235
Fair value $ 1,046  
1.85% Senior 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%  
Senior notes $ 1,485 1,485
Fair value $ 1,157  
4.60% Senior 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%  
Senior notes $ 1,488 1,488
Fair value $ 1,455  
2.65% Senior 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%  
Senior notes $ 1,232 1,231
Fair value $ 892  
4.25% Senior 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%  
Senior notes $ 1,232 1,231
Fair value $ 1,091  
3.00% Senior 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%  
Senior notes $ 1,221 1,221
Fair value $ 871  
4.95% Senior 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%  
Senior notes $ 1,465 1,464
Fair value $ 1,435  
3.00% Senior 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%  
Senior notes $ 1,471 1,471
Fair value $ 985  
5.20% Senior 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%  
Senior notes $ 983 $ 983
Fair value $ 996