Debt - Schedule of Total Debt (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	May 23, 2022	Aug. 20, 2020	May 26, 2020	Aug. 13, 2018
Short-term debt:
Commercial Paper		$ 0
Other short-term debt	$ 0	4
Total short-term debt	1,954	4
Long-term debt:
Total long-term debt	20,659	18,118
Total debt	22,613	18,122
Line of Credit | 2025 Term Loan due August 31, 2025
Long-term debt:
Senior notes	1,600	0
Senior Notes | 2025 Term Loan due August 31, 2025
Long-term debt:
Total debt	$ 1,600	0
Senior Notes | 2025 Senior Notes (3.65% senior notes due May 23, 2025)
Debt Instrument [Line Items]
Interest rate, stated percentage (in percentage)	3.65%
Long-term debt:
Senior notes	$ 1,246	1,243
Total debt	$ 1,246	1,243
Senior Notes | 2025 Senior Notes (3.75% senior notes due December 1, 2025)
Debt Instrument [Line Items]
Interest rate, stated percentage (in percentage)	3.75%		3.65%
Long-term debt:
Senior notes	$ 1,248	1,247
Total debt	$ 1,248	1,247
Senior Notes | 2027 Senior Notes (4.00% senior notes due September 15, 2027)
Debt Instrument [Line Items]
Interest rate, stated percentage (in percentage)	4.00%		4.00%
Long-term debt:
Senior notes	$ 1,489	1,487
Total debt	$ 1,489	1,487
Senior Notes | 2027 Senior Notes (3.10% senior notes due September 15, 2027)
Debt Instrument [Line Items]
Interest rate, stated percentage (in percentage)	3.10%
Long-term debt:
Senior notes	$ 498	498
Total debt	$ 498	498
Senior Notes | 2028 Senior Notes (3.625% senior notes due September 1, 2028)
Debt Instrument [Line Items]
Interest rate, stated percentage (in percentage)	3.625%
Long-term debt:
Senior notes	$ 920	0
Senior Notes | 2028 Senior Notes (3.75% senior notes due September 21, 2028)
Debt Instrument [Line Items]
Interest rate, stated percentage (in percentage)	3.75%					3.75%
Long-term debt:
Senior notes	$ 596	594
Total debt	$ 596	594
Senior Notes | 2029 Senior Notes (4.35% senior notes due June 15, 2029)
Debt Instrument [Line Items]
Interest rate, stated percentage (in percentage)	4.35%		4.35%
Long-term debt:
Senior notes	$ 1,241	1,240
Total debt	$ 1,241	1,240
Senior Notes | 2030 Senior Notes (2.10% senior notes due June 15, 2030)
Debt Instrument [Line Items]
Interest rate, stated percentage (in percentage)	2.10%				2.10%
Long-term debt:
Senior notes	$ 1,238	1,235
Total debt	$ 1,238	1,235
Senior Notes | 2032 Senior Notes (1.85% senior notes due September 15, 2032)
Debt Instrument [Line Items]
Interest rate, stated percentage (in percentage)	1.85%			1.85%
Long-term debt:
Senior notes	$ 1,486	1,485
Total debt	$ 1,486	1,485
Senior Notes | 2033 Senior Notes (4.60% senior notes due March 15, 2033)
Debt Instrument [Line Items]
Interest rate, stated percentage (in percentage)	4.60%		4.60%
Long-term debt:
Senior notes	$ 1,489	1,488
Total debt	$ 1,489	1,488
Senior Notes | 2040 Senior Notes (2.65% senior notes due September 15, 2040)
Debt Instrument [Line Items]
Interest rate, stated percentage (in percentage)	2.65%			2.65%
Long-term debt:
Senior notes	$ 1,232	1,231
Total debt	$ 1,232	1,231
Senior Notes | 2048 Senior Notes (4.25% senior notes due September 21, 2048)
Debt Instrument [Line Items]
Interest rate, stated percentage (in percentage)	4.25%					4.25%
Long-term debt:
Senior notes	$ 1,232	1,231
Total debt	$ 1,232	1,231
Senior Notes | 2050 Senior Notes (3.00% senior notes due June 15, 2050)
Debt Instrument [Line Items]
Interest rate, stated percentage (in percentage)	3.00%				3.00%
Long-term debt:
Senior notes	$ 1,222	1,221
Total debt	$ 1,222	1,221
Senior Notes | 2052 Senior Notes (4.95% senior notes due June 15, 2052)
Debt Instrument [Line Items]
Interest rate, stated percentage (in percentage)	4.95%		4.95%
Long-term debt:
Senior notes	$ 1,466	1,464
Total debt	$ 1,466	1,464
Senior Notes | 2060 Senior Notes (3.00% senior notes due September 15, 2060)
Debt Instrument [Line Items]
Interest rate, stated percentage (in percentage)	3.00%			3.00%
Long-term debt:
Senior notes	$ 1,472	1,471
Total debt	$ 1,472	1,471
Senior Notes | 2062 Senior Notes (5.20% senior notes due June 15, 2062)
Debt Instrument [Line Items]
Interest rate, stated percentage (in percentage)	5.20%		5.20%
Long-term debt:
Senior notes	$ 984	983
Total debt	$ 984	$ 983