v3.25.4
Schedule I - Condensed Statements of Cash Flows (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Operating activities:      
Net income $ 1,361 $ 1,373 $ 1,358
Changes in operating assets and liabilities:      
Net cash provided by operating activities 2,654 2,716 2,149
Investing activities:      
Net cash used in investing activities (2,305) (1,444) (1,603)
Financing activities:      
Payments related to employee stock incentive plans, net (67) (64) (61)
Repurchase of common stock (1,244) (1,350) (992)
Other (11) 0 0
Net cash used in financing activities (150) (878) (382)
Change in cash and cash equivalents 278 326 160
Cash and cash equivalents at beginning of period 1,702 1,376 1,216
Cash and cash equivalents at end of period 1,980 1,702 1,376
Parent Company      
Operating activities:      
Net income 1,360 1,373 1,358
Adjustments to reconcile net income to cash provided by operating activities:      
Equity in earnings of subsidiary (1,360) (1,373) (1,358)
Changes in operating assets and liabilities:      
Other operating assets and liabilities (1) (11) 0
Net cash provided by operating activities (1) (11) 0
Investing activities:      
Dividends received 1,323 1,423 1,052
Net cash used in investing activities 1,323 1,423 1,052
Financing activities:      
Payments related to employee stock incentive plans, net (67) (64) (61)
Repurchase of common stock (1,244) (1,350) (992)
Intercompany with subsidiary 0 0 1
Other (10) 0 0
Net cash used in financing activities (1,321) (1,414) (1,052)
Change in cash and cash equivalents 1 (2) 0
Cash and cash equivalents at beginning of period 0 2 2
Cash and cash equivalents at end of period $ 1 $ 0 $ 2