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Indebtedness - Summary of Total Indebtedness (Detail) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Debt Instrument [Line Items] |  |
Principal Amount | $ 7,694 | $ 7,281
Fair Value of Interest Rate Swap | (169) | (183)
Unamortized (Discount) Premium | (52) | (51)
Unamortized Debt Issuance Costs | (45) | (46)
Carrying Amount | 7,428 | 7,001
Current portion | (697) | 0
Long-term debt | $ 6,731 | $ 7,001
5.25% 2014 Senior Notes, due 2044 |  |
Debt Instrument [Line Items] |  |
Notes payable, interest rate | 5.25% | 5.25%
Principal Amount | $ 600 | $ 600
Fair Value of Interest Rate Swap | (32) | (34)
Unamortized (Discount) Premium | 3 | 3
Unamortized Debt Issuance Costs | (4) | (4)
Carrying Amount | $ 567 | $ 565
1.75% 2015 Senior Notes, due 2027 |  |
Debt Instrument [Line Items] |  |
Notes payable, interest rate | 1.75% | 1.75%
Principal Amount | $ 518 | $ 552
Fair Value of Interest Rate Swap | 0 | 0
Unamortized (Discount) Premium | 0 | 0
Unamortized Debt Issuance Costs | (1) | (1)
Carrying Amount | $ 517 | $ 551
3.25% 2017 Senior Notes, due 2028 |  |
Debt Instrument [Line Items] |  |
Notes payable, interest rate | 3.25% | 3.25%
Principal Amount | $ 500 | $ 500
Fair Value of Interest Rate Swap | (13) | (26)
Unamortized (Discount) Premium | (2) | (2)
Unamortized Debt Issuance Costs | (1) | (2)
Carrying Amount | $ 484 | $ 470
4.25% 2018 Senior Notes, due 2029 |  |
Debt Instrument [Line Items] |  |
Notes payable, interest rate | 4.25% | 4.25%
Principal Amount | $ 400 | $ 400
Fair Value of Interest Rate Swap | (35) | (34)
Unamortized (Discount) Premium | (1) | (2)
Unamortized Debt Issuance Costs | (1) | (2)
Carrying Amount | $ 363 | $ 362
4.875% 2018 Senior Notes, due 2048 |  |
Debt Instrument [Line Items] |  |
Notes payable, interest rate | 4.875% | 4.875%
Principal Amount | $ 400 | $ 400
Fair Value of Interest Rate Swap | (35) | (36)
Unamortized (Discount) Premium | (6) | (6)
Unamortized Debt Issuance Costs | (3) | (3)
Carrying Amount | $ 356 | $ 355
0.950% 2019 Senior Notes, due 2030 |  |
Debt Instrument [Line Items] |  |
Notes payable, interest rate | 0.95% | 0.95%
Principal Amount | $ 776 | $ 829
Fair Value of Interest Rate Swap | 0 | 0
Unamortized (Discount) Premium | (1) | (2)
Unamortized Debt Issuance Costs | (3) | (4)
Carrying Amount | $ 772 | $ 823
3.75% 2020 Senior Notes, due 2025 |  |
Debt Instrument [Line Items] |  |
Notes payable, interest rate | 3.75% | 3.75%
Principal Amount | $ 700 | $ 700
Fair Value of Interest Rate Swap | (3) | (16)
Unamortized (Discount) Premium | 0 | (1)
Unamortized Debt Issuance Costs | 0 | (1)
Carrying Amount | $ 697 | $ 682
3.25% 2020 Senior Notes, due 2050 |  |
Debt Instrument [Line Items] |  |
Notes payable, interest rate | 3.25% | 3.25%
Principal Amount | $ 300 | $ 300
Fair Value of Interest Rate Swap | 0 | 0
Unamortized (Discount) Premium | (4) | (4)
Unamortized Debt Issuance Costs | (3) | (3)
Carrying Amount | $ 293 | $ 293
2.55% 2020 Senior Notes, due 2060 |  |
Debt Instrument [Line Items] |  |
Notes payable, interest rate | 2.55% | 2.55%
Principal Amount | $ 300 | $ 300
Fair Value of Interest Rate Swap | 0 | 0
Unamortized (Discount) Premium | (2) | (2)
Unamortized Debt Issuance Costs | (3) | (3)
Carrying Amount | $ 295 | $ 295
2.00% 2021 Senior Notes, due 2031 |  |
Debt Instrument [Line Items] |  |
Notes payable, interest rate | 2.00% | 2.00%
Principal Amount | $ 600 | $ 600
Fair Value of Interest Rate Swap | 0 | 0
Unamortized (Discount) Premium | (6) | (6)
Unamortized Debt Issuance Costs | (4) | (4)
Carrying Amount | $ 590 | $ 590
2.75% 2021 Senior Notes, due 2041 |  |
Debt Instrument [Line Items] |  |
Notes payable, interest rate | 2.75% | 2.75%
Principal Amount | $ 600 | $ 600
Fair Value of Interest Rate Swap | 0 | 0
Unamortized (Discount) Premium | (12) | (12)
Unamortized Debt Issuance Costs | (5) | (5)
Carrying Amount | $ 583 | $ 583
3.10% 2021 Senior Notes, due 2061 |  |
Debt Instrument [Line Items] |  |
Notes payable, interest rate | 3.10% | 3.10%
Principal Amount | $ 500 | $ 500
Fair Value of Interest Rate Swap | 0 | 0
Unamortized (Discount) Premium | (7) | (7)
Unamortized Debt Issuance Costs | (5) | (5)
Carrying Amount | $ 488 | $ 488
3.75% 2022 Senior Notes, due 2052 |  |
Debt Instrument [Line Items] |  |
Notes payable, interest rate | 3.75% | 3.75%
Principal Amount | $ 500 | $ 500
Fair Value of Interest Rate Swap | (43) | (29)
Unamortized (Discount) Premium | (8) | (8)
Unamortized Debt Issuance Costs | (5) | (5)
Carrying Amount | $ 444 | $ 458
4.25% 2022 Senior Notes, due 2032 |  |
Debt Instrument [Line Items] |  |
Notes payable, interest rate | 4.25% | 4.25%
Principal Amount | $ 500 | $ 500
Fair Value of Interest Rate Swap | (8) | (8)
Unamortized (Discount) Premium | (2) | (2)
Unamortized Debt Issuance Costs | (3) | (4)
Carrying Amount | $ 487 | $ 486
5.00% 2024 Senior Notes, due 2034 |  |
Debt Instrument [Line Items] |  |
Notes payable, interest rate | 5.00% |
Principal Amount | $ 500 |
Fair Value of Interest Rate Swap | 0 |
Unamortized (Discount) Premium | (4) |
Unamortized Debt Issuance Costs | (4) |
Carrying Amount | $ 492 |

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