Stockholders' Equity and Stock-Based Compensation (Narrative) (Details) $ / shares in Units, shares in Thousands, $ in Millions		12 Months Ended
	Apr. 17, 2023 $ / shares shares	Dec. 31, 2025 USD ($) $ / shares shares	Dec. 31, 2024 USD ($) $ / shares shares	Dec. 31, 2023 USD ($) $ / shares
Aggregate intrinsic value of options exercised		$ 210	$ 413	$ 259
Cash receipts due to exercise of options		154	259	148
Employee service share-based compensation, tax benefit from exercise of stock options		64	107	80
Excess tax benefit from share-based compensation		$ (32)	$ (70)	$ (51)
Aggregate number of shares withheld to satisfy tax requirement | shares		326	396
Aggregate value of shares withheld to satisfy tax requirement		$ 69	$ 97
2007 Omnibus Incentive Plan
Total number of authorized shares to be issued under the 2007 Omnibus Incentive Plan, shares | shares		135,000
Common shares reserved for issuance under the 2007 Omnibus Incentive Plan, shares | shares		42,000
Stock options
Total unrecognized compensation cost		$ 150
Weighted average period for cost to be recognized (in years)		2 years
Weighted average grant date fair value (in usd per share) | $ / shares		$ 67.29	$ 83.12	$ 68.92
Employee service share-based compensation, tax benefit from exercise of stock options		$ 41	$ 79	$ 48
Stock options | 2007 Omnibus Incentive Plan
Vesting period		5 years
Stock option term (in years)		10 years
Stock options | Amended and Restated 2007 Omnibus Incentive Plan
Vesting period		4 years
Stock option term (in years)		10 years
RSUs
Total unrecognized compensation cost		$ 168
Weighted average period for cost to be recognized (in years)		2 years
Employee service share-based compensation, tax benefit from exercise of stock options		$ 23	28	$ 32
RSUs | 2007 Omnibus Incentive Plan
Vesting period		5 years
RSUs | Amended and Restated 2007 Omnibus Incentive Plan
Vesting period		4 years
Common stock | 2013 Repurchase Program | Related Party
Repurchases of common stock			$ 173
Common stock | 2013 Repurchase Program
Shares repurchased (in shares) | shares			20,000
Repurchases of common stock			$ 5,200
Common stock | 2024 Repurchase Program
Shares repurchased (in shares) | shares		14,500	3,500
Repurchases of common stock		$ 3,100	$ 817
Excise tax, payable		24
Common stock | 2013 And 2024 Repurchase Program
Excise tax on stock repurchases		$ 56
Series B Preferred Stock | Preferred stock
Preferred stock, dividend rate, percentage	5.00%
Preferred stock, convertible, conversion ratio	5.0175
Conversion of MCPS to common stock (in shares) | shares	8,600
Dividends (in usd per share) | $ / shares	$ 12.50