Stockholders' Equity - Changes in Equity (Details) - USD ($)
$ in Millions |
3 Months Ended |
|
Mar. 31, 2018 |
Mar. 31, 2017 |
Dec. 31, 2016 |
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
| Beginning Balance |
$ 1,114
|
$ 1,242
|
|
| Net income attributable to the parent |
108
|
75
|
|
| Net income attributable to noncontrolling interest |
2
|
5
|
|
| Net income, including portion attributable to nonredeemable noncontrolling interests |
110
|
80
|
|
| Other comprehensive income (loss) |
9
|
31
|
|
| Other comprehensive income (loss) including portion attributable to nonredeemable noncontrolling interest |
8
|
32
|
|
| Common stock dividends |
(15)
|
(9)
|
|
| Distributions to noncontrolling interests |
(1)
|
(1)
|
|
| Increase from business combination |
0
|
14
|
|
| Purchase of noncontrolling interests |
0
|
|
|
| Stock compensation |
5
|
7
|
|
| Stock withheld for employee taxes |
(6)
|
(3)
|
|
| Ending Balance |
1,215
|
1,183
|
|
| Attributable to Parent [Member] |
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
| Beginning Balance |
1,013
|
1,157
|
|
| Other comprehensive income (loss) |
8
|
30
|
|
| Common stock dividends |
(15)
|
(9)
|
|
| Purchase of noncontrolling interests |
(9)
|
|
|
| Stock compensation |
5
|
7
|
|
| Stock withheld for employee taxes |
(6)
|
(3)
|
|
| Ending Balance |
1,104
|
1,078
|
|
| Attributable to Non-Controlling Interests [Member] |
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
| Beginning Balance |
101
|
85
|
|
| Other comprehensive income (loss) |
|
2
|
|
| Distributions to noncontrolling interests |
(1)
|
(1)
|
|
| Increase from business combination |
|
14
|
|
| Purchase of noncontrolling interests |
9
|
|
|
| Ending Balance |
$ 111
|
$ 105
|
|
| Accounting Standards Update 2016-16 [Member] |
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
| Impact on retained earnings |
|
|
$ (179)
|
| Accounting Standards Update 2016-16 [Member] | Attributable to Parent [Member] |
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
| Impact on retained earnings |
|
|
$ (179)
|