XML 124 R80.htm IDEA: XBRL DOCUMENT v3.22.0.1
Schedule I (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Condensed Financial Statements, Captions [Line Items]      
Cash Dividends Paid to Parent, Consolidated Subsidiaries $ 8,000 $ 8,300  
Parent Company [Member]      
Condensed Financial Statements, Captions [Line Items]      
Cash Dividends Paid to Parent, Consolidated Subsidiaries 10,800 10,000 $ 5,600
Return of capital to parent company 245 943 $ 4,497
Notes Payable 8,100 4,900  
Subsidiaries [Member]      
Condensed Financial Statements, Captions [Line Items]      
Other Long-term Debt $ 1,400 $ 1,200