Debt - Schedule of Total Debt (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Short-term debt:
Other short-term debt	$ 0	$ 4
Total short-term debt	0	4
Long-term debt:
Total long-term debt	18,123	18,118
Total debt	$ 18,123	18,122
Senior Notes \| 2025 Senior Notes (3.65% senior unsecured notes due May 23, 2025)
Debt Instrument [Line Items]
Interest rate, stated percentage	3.65%
Long-term debt:
Senior notes	$ 1,244	1,243
Senior Notes \| 2025 Senior Notes (3.75% senior unsecured notes due December 1, 2025)
Debt Instrument [Line Items]
Interest rate, stated percentage	3.75%
Long-term debt:
Senior notes	$ 1,247	1,247
Senior Notes \| 2027 Senior Notes (4.00% senior unsecured notes due September 15, 2027)
Debt Instrument [Line Items]
Interest rate, stated percentage	4.00%
Long-term debt:
Senior notes	$ 1,487	1,487
Senior Notes \| 2027 Senior Notes (3.10% senior unsecured notes due September 15, 2027)
Debt Instrument [Line Items]
Interest rate, stated percentage	3.10%
Long-term debt:
Senior notes	$ 498	498
Senior Notes \| 2028 Senior Notes (3.75% senior unsecured notes due September 21, 2028)
Debt Instrument [Line Items]
Interest rate, stated percentage	3.75%
Long-term debt:
Senior notes	$ 594	594
Senior Notes \| 2029 Senior Notes (4.35% senior unsecured notes due June 15, 2029)
Debt Instrument [Line Items]
Interest rate, stated percentage	4.35%
Long-term debt:
Senior notes	$ 1,240	1,240
Senior Notes \| 2030 Senior Notes (2.10% senior unsecured notes due June 15, 2030)
Debt Instrument [Line Items]
Interest rate, stated percentage	2.10%
Long-term debt:
Senior notes	$ 1,236	1,235
Senior Notes \| 2032 Senior Notes (1.85% senior unsecured notes due September 15, 2032)
Debt Instrument [Line Items]
Interest rate, stated percentage	1.85%
Long-term debt:
Senior notes	$ 1,485	1,485
Senior Notes \| 2033 Senior Notes (4.60% senior unsecured notes due March 15, 2033)
Debt Instrument [Line Items]
Interest rate, stated percentage	4.60%
Long-term debt:
Senior notes	$ 1,488	1,488
Senior Notes \| 2040 Senior Notes (2.65% senior unsecured notes due September 15, 2040)
Debt Instrument [Line Items]
Interest rate, stated percentage	2.65%
Long-term debt:
Senior notes	$ 1,232	1,231
Senior Notes \| 2048 Senior Notes (4.25% senior unsecured notes due September 21, 2048)
Debt Instrument [Line Items]
Interest rate, stated percentage	4.25%
Long-term debt:
Senior notes	$ 1,231	1,231
Senior Notes \| 2050 Senior Notes (3.00% senior unsecured notes due June 15, 2050)
Debt Instrument [Line Items]
Interest rate, stated percentage	3.00%
Long-term debt:
Senior notes	$ 1,221	1,221
Senior Notes \| 2052 Senior Notes (4.95% senior unsecured notes due June 15, 2052)
Debt Instrument [Line Items]
Interest rate, stated percentage	4.95%
Long-term debt:
Senior notes	$ 1,465	1,464
Senior Notes \| 2060 Senior Notes (3.00% senior unsecured notes due September 15, 2060)
Debt Instrument [Line Items]
Interest rate, stated percentage	3.00%
Long-term debt:
Senior notes	$ 1,471	1,471
Senior Notes \| 2062 Senior Notes (5.20% senior unsecured notes due June 15, 2062)
Debt Instrument [Line Items]
Interest rate, stated percentage	5.20%
Long-term debt:
Senior notes	$ 984	$ 983

Contractual interest rate for funds borrowed, under the debt agreement.

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