XML 18 R7.htm IDEA: XBRL DOCUMENT v3.10.0.1
Consolidated Statements Of Shareholders' Equity (Parenthetical) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Statement Consolidated Statements Of Shareholders Equity [Abstract]    
Other Comprehensive Income (Loss), Available-for-sale Securities, before Reclassification Adjustments, Tax $ 300 $ (259)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax (15) 3
Net unrealized appreciation on investments, Change in period, income tax (expense) benefit 285 (256)
Cumulative translation adjustment, Change in period, income tax(expense) benefit (15) (7)
Pension liability adjustment, Change in period, income tax (expense) benefit $ 9 $ 17