Employee Benefit Plans - Investments Measured at NAV (Details) - NAV - USD ($)
$ in Millions |
12 Months Ended |
Dec. 31, 2019 |
Dec. 31, 2018 |
| Investments measured at NAV |
|
|
| Fair value of investment measured at NAV |
$ 9,854
|
$ 9,136
|
| Hedge funds and hedge fund-related strategies |
|
|
| Investments measured at NAV |
|
|
| Fair value of investment measured at NAV |
5,588
|
$ 5,264
|
| Unfunded commitments |
$ 76
|
|
| Hedge funds and hedge fund-related strategies | Minimum |
|
|
| Investments measured at NAV |
|
|
| Redemption notice period |
2 days
|
2 days
|
| Hedge funds and hedge fund-related strategies | Maximum |
|
|
| Investments measured at NAV |
|
|
| Redemption notice period |
180 days
|
180 days
|
| Commingled funds, private equity and private equity-related instruments |
|
|
| Investments measured at NAV |
|
|
| Fair value of investment measured at NAV |
$ 1,834
|
$ 1,591
|
| Unfunded commitments |
$ 393
|
|
| Commingled funds, private equity and private equity-related instruments | Minimum |
|
|
| Investments measured at NAV |
|
|
| Redemption notice period |
2 days
|
2 days
|
| Commingled funds, private equity and private equity-related instruments | Maximum |
|
|
| Investments measured at NAV |
|
|
| Redemption notice period |
30 days
|
30 days
|
| Fixed income and fixed income-related instruments |
|
|
| Investments measured at NAV |
|
|
| Fair value of investment measured at NAV |
$ 958
|
$ 769
|
| Unfunded commitments |
$ 254
|
|
| Fixed income and fixed income-related instruments | Minimum |
|
|
| Investments measured at NAV |
|
|
| Redemption notice period |
15 days
|
15 days
|
| Fixed income and fixed income-related instruments | Maximum |
|
|
| Investments measured at NAV |
|
|
| Redemption notice period |
90 days
|
90 days
|
| Real assets |
|
|
| Investments measured at NAV |
|
|
| Fair value of investment measured at NAV |
$ 758
|
$ 807
|
| Unfunded commitments |
203
|
|
| Other |
|
|
| Investments measured at NAV |
|
|
| Fair value of investment measured at NAV |
$ 716
|
$ 705
|
| Other | Minimum |
|
|
| Investments measured at NAV |
|
|
| Redemption notice period |
2 days
|
2 days
|
| Other | Maximum |
|
|
| Investments measured at NAV |
|
|
| Redemption notice period |
90 days
|
90 days
|